Meticulous (YC S21) Is Hiring First Engineer (London and Remote)

Hey HN!

I’m Gabriel, founder of Meticulous and previously a software engineer at Opendoor and Dropbox.

Meticulous’s mission is to make the world’s code safe, performant and reliable. We’re starting with a tool to catch JavaScript regressions in web applications with zero-effort from developers.

We are a London-based YC company and remote friendly. We just raised $4m, and are backed by some of the best founders and technical leaders in Silicon Valley, including Guillermo Rauch (founder Vercel, author next.js), Jason Warner (CTO GitHub), Scott Belsky (CPO Adobe), Calvin French-Owen (founder Segment), Jared Friedman (YC partner and former CTO of Scribd) and a bunch of other incredible folks.

How it works: Insert a single line of JavaScript onto your site, and we record thousands of real user sessions. We then replay these sessions on new code to automatically catch bugs before they hit production. You can watch a 60-second demo at meticulous.ai/demo.

Catching JavaScript regressions is just the start. There is an entire category of products to build on top of replay. This ranges from automatic UI previews to revealing the performance impact of frontend code.

We want to change the way the world develops software, and influence software approaches for decades to come.

We are hiring our #1 founding engineer.

You will have autonomy in building out this technology, but here are a few problems you might work on:

– Build a distributed system to concurrently replay thousands of sessions, such that a developer gets a result in seconds.

– Speed up the replay of sessions in a way that retains determinism.

– Derive algorithms to detect sessions that cover differing code paths and edge cases, and ignore sessions that are too similar.

– Help build out a team of world-class, highly collaborative, software engineers.

As #1 engineer, you get to shape the company, and build the culture and technology from the ground up.

What we look for:

In a sentence: Technically brilliant, delightful to work with, combined with a self-awareness and strong desire to improve.

We’re currently only looking to bring on folks with mid-to-senior level skill sets. You should have strong web fundamentals. However, we are more interested in raw technical brilliance than experience with any particular language or technology. You should have a deep love for software engineering. Maybe you enjoy programming books like Clean Code, Designing Data Intensive Applications, Pragmatic Programmer etc. or enjoy hacking on interesting side projects. You value transparency and candid feedback, and are driven by a strong desire to become the best engineer you can be.

What you get:

Compensation: We want outrageously talented individuals. This means we offer commensurately outrageous equity grants. The equity grant will be 2% or greater with employee-friendly terms (10 year exercise window on options). We pay $140k-$200k in base salary, along with top of line benefits and perks.

Learning: You will be given the space and time to up-level yourself as an engineer in terms of conferences, reading, or whatever you think will be most valuable. We will also set you up with mentorship, if you desire it, from top engineering leaders (folks running 100-engineer organizations at the world’s leading tech companies).

If this sounds interesting, please reach out to me at gabe [at] meticulous [dot] ai with “HN” in the subject line and 2-3 sentences about what you find interesting about Meticulous and your resume/LinkedIn/GitHub.


Comments URL: https://news.ycombinator.com/item?id=28811444

Points: 1

# Comments: 0

Kentucky looking to cause LSU problems — and not just on the field

Two weeks ago, Kentucky was hanging onto a lead at South Carolina, looking for their second conference win of the season. Now, fast forward three weeks later, and the Wildcats are taking on the visiting LSU Tigers for an opportunity to be 4-0 in the SEC. They knocked off Florida last weekend and are now tied for first in the SEC East.

More than a dozen businesses fined for flouting NYC’s vaccine mandate

Enforcement of the vaccine mandate began Sept. 13, after a weeks-long public service announcement campaign.

New comment by tapad in "Ask HN: Who is hiring? (October 2021)"

Tapad | Full-Time | NYC & Oslo, Norway | Open Compensation

Tapad is known for inventing and introducing the Tapad Graph™ to the industry. At the heart of it, we’re a big data company.

Tapad’s Open Source tech stack (below) handle:

– Google Cloud Platform (GCP), Google Dataflow/Beam, SQL, BigQuery
– Scala, sbt, cats, http4s, fs2
– Spark ML, TensorFlow, Kubeflow, Python, PyTorch
– Airflow, Looker, Kubernetes

– – – – – – – – – – – – – – – – –

Here are our open roles in Engineering:

Senior Engineering Manager (Oslo): https://grnh.se/1b8ebfd91us
Senior Site Reliability Engineer – Cloud (Oslo) https://grnh.se/6dbae5d11us
Software Engineer (NYC & Oslo): https://grnh.se/ac035e721us
Senior Software Engineer(NYC& Oslo): https://grnh.se/ee68aea81us
Senior Machine Learning Engineer (NYC & Oslo): https://grnh.se/4eae88931us

– – – – – – – – – – – – – – – – –
More About Tapad:
We use Scala, in combination with large-scale data processing and open-source technologies, to build our device graph. Across our engineering teams, we also use Scala, GCP, Spark, Kubernetes, Python, TypeScript, Angular, and anything else that helps us get the job done. We’re open-minded about new technologies, we’re passionate about what we do, and we make time for everyone to learn and grow as the industry changes. Engineers at Tapad are approachable and ambitious people who think outside the box and solve big problems collaboratively. Are you up for the challenge?

New comment by odahara1 in "Ask HN: Who is hiring? (October 2021)"

WELL Health Inc. | Software Engineers | Full Time + Equity/Benefits | Santa Barbara, CA/Los Angeles, CA/Boston, MA/Budapest/Remote in the US

Our Mission is to make healthcare the gold standard in customer service.

WELL Health (https://wellapp.com/) enables conversations between patients and their providers through secure, multilingual messaging in the patient’s preferred communications channel: texting, email, telephone, and live chat. WELL Health’s intelligent communications hub is the only two-way digital health solution engaging patients throughout their entire care experience.

WELL Health is a Series C startup ($45M in funding) with 200+ employees and growing! WELL has been named No. 10 on the 2021 Forbes America’s Best Startup Employers list. In 2020, WELL Health was named among the Best Places to Work by Modern Healthcare and ranked #170 on the Inc. 5000 list of fastest growing private companies.

We currently have a number of engineering positions open and are looking to grow our engineering team exponentially!

Senior DevOps Engineers, Backend Engineers(senior and mid-level), Frontend Engineers(senior and mid-level), Full Stack Engineers (senior and mid-level), Integration Engineers(senior and mid-level), Bi-Analysts/Developers, Product Managers (director, senior, and associate level), and an Engineering Manager II.

If interested, apply directly (https://grnh.se/3892eecb2us). You can email jodahara@wellapp.com with questions.

Lindsey Burke: Dropping 'F' grades for kids is a new 'soft bigotry of low expectations'

The new grading system at Sunrise Park Middle School in Minnesota will no longer reflect student behavior or tardiness, or whether an assignment was completed on time. Grading, the school’s website reads, perpetuates systemic racism.

Tesorio (YC S15) is Hiring a Head of Talent to help us grow 2x next year

Article URL: https://jobs.lever.co/tesorio/cb6976de-e744-4f68-b10a-a9c2c62b3911 Comments URL: https://news.ycombinator.com/item?id=28804135 Points: 1 # Comments: 0

The Game of Business Credit Cards

The Game of Business Credit Cards

In some cases, when funding for your brand-new service endeavor appears a little tough to locate, you may wish to think about business bank card used by the various companies. Service charge card are swiftly acquiring appeal amongst small company proprietors, that have actually seen these really valuable as alternate funding resources.

Service debt cards can be their door to that chance or, at the really the very least, a much valued lifesaver for existing services from time to time. Possibly for this factor, organization debt cards are seeing broader usage as a resource of funding, with some of the service debt card owners discovering the video game of exactly how to make points truly function to their benefit.

Little organization proprietors that maintain their service credit score cards on data with their normal suppliers can assist remove COD fees, obtain expedited distribution solutions, as well as obtain the opportunity to extend their money circulation by a couple of additional lawns. Your company can save money momentarily longer by billing products to business charge card at the start of the payment cycle– which offers you a float of concerning 21 days.

It can not be stated also commonly: service credit history cards can actually aid you take care of the company much better. Much less well recognized is, that at the end of a quarter, the duration cost account recaps from your company credit rating card firms are a huge aid in resolving your purchases as well as preparing your quarterly tax obligation filings.

You will certainly likewise observe that as a result of the competitors amongst providers, numerous service bank card providers provide you absolutely no percent rate of interest for equilibriums moved from an additional company charge card business to their own. This offers you with an actually fantastic chance – if you tackle it in a wise method: You can profit from these zero-interest deals by constantly relocating your equilibriums from one organization charge card to an additional organization bank card without ever before needing to pay market prices. This is a completely legit approach, as well as there are ample organization bank card providers around asking company charge card owners to do precisely that.

You can play it as a sort of video game. When the initial duration on one company credit scores card is concerning to end, you would certainly never ever run out of brand-new company debt cards to leap right into. Be sharp concerning maintaining on top of your declarations and also your expiration days if you do take this tack.

When you observe passion prices beginning to increase, it will certainly additionally function in your support if you move your service credit scores cards. As a choice, you can talk with your existing organization bank card provider to see if they want to bring their prices pull back. Keep in mind, however, that duplicated applications for company charge card might affect your credit rating record, so maintain eye on appropriate durations for debt queries.

Service credit report cards can be their door to that possibility or, at the extremely the very least, a much valued lifesaver for existing companies from time to time. Maybe for this factor, service credit score cards are seeing broader usage as a resource of funding, with some of the company credit score card owners discovering the video game of exactly how to make points truly function to their benefit.

You will certainly additionally observe that due to the competitors amongst providers, numerous company credit rating card companies use you no percent passion price for equilibriums moved from an additional company debt card business to their own. You would certainly never ever run out of brand-new organization credit rating cards to leap right into when the initial duration on one organization debt card is concerning to end.

How to Do Paid Social Without Cookies

how to do paid social without cookies

Google made a big splash when they announced the end of third-party cookies in Chrome, and Apple has announced a similar change. 

It’s a huge shift for social media marketers, so what can you expect cookieless paid social to look like?

Google’s answer to the end of third-party cookies is the Privacy Sandbox, which will anonymize data to help increase privacy and limit spam and fraud.

Social media sites, like Facebook and Instagram, however, are using a slightly different approach. Understanding what these changes mean and how to navigate the future of paid ads without cookies is crucial to long-term social media success.

Here is what you need to know about what this change means and how to prepare for it. (Spoiler: it might not be as big of a deal as you think.)

What Does the End of Third-Party Cookies Mean for Paid Social?

Third-party cookies are small pieces of code marketers use to access data about how users interact on websites, social media platforms, and more. They are placed by a third party and can track actions across multiple websites. 

They allow you to target, for example, users who have purchased a specific item or read a news article about a specific topic on another site and then come to Facebook.

Third-party cookies are used heavily in social media marketing. That has a lot of social media marketers concerned about what this change means. However, marketers have been ignoring some drawbacks to third-party cookies. Understanding the drawbacks is crucial to understanding the impact of this change.

First, third-party cookies weren’t always accurate. For example, if someone uses their phone at work and then their laptop at home to perform a search, cookies couldn’t always track those as the same individual.

Also, if you search for one thing and your roommate searches for another (on the same IP address), cookies can’t always differentiate the two.

Another major concern is privacy. Do sites have the right to track an individual across multiple websites? Where does that data get stored? How long is the data stored? Do people have the right to ask advertisers to delete their data?

The EU and other organizations have pushed back with regulations designed to improve online privacy, such as GDPR.

Despite their flaws, cookies are an integral part of targeting paid social ads.

What does the end of third-party cookies mean for paid social ads?

First, it’s important to note that Google has pushed back the date for ending third-party cookies, which means you have plenty of time to prepare. 

Second, there are already more effective ways to target paid social ads. The shift may make paid ad ROI drop (as marketers learn new strategies), but I don’t expect it to be a long-term issue.

You will need to adjust your paid social strategy to be successful. Luckily, the changes likely aren’t a huge shift from your current strategy.

I’ll cover six ways to prepare your paid social strategy for the end of third-party cookies.

6 Ways to Prepare Your Paid Social Strategy for a Cookieless Future

A cookieless future is coming—but you have tons of time to start testing new strategies for your paid social ads. The sky isn’t falling; you’ll just need to make adjustments to how you gather data and target users.

Here are six strategies to get you started:

Go All-In on First-Party Data

Third-party data is data another organization gathers and then shares with you. It may be incomplete, inconsistent, and downright wrong. That is why several platforms are ending the use of third-party cookies.

First-party data, however, is information you collect yourself about your prospects, customers, and social media followers. This data is not going away. In fact, it’s becoming more important than ever.

I strongly recommend you start gathering first-party data about your audience now so you can test new strategies and see what works.

How do you gather first-party data? Here are a few ways: 

  • Build your email list. 
  • Use lead generation ads like Facebook’s lead generation ads
  • Create a Facebook group so you can interact with users directly. 
  • Encourage direct messages on platforms like Facebook and Instagram. (Instagram Stories are a great way to do this.) 
  • Use social media to poll your audience.

Let’s look at how to use first-party data for paid social ads. For example, you can build an email list, then upload those contacts to Facebook and target those users.

First-party data is more accurate—and you have full control over the data. That makes it far more valuable than third-party data.

Leverage UTM Parameters

UTM parameters are small bits of code added to the end of a URL. They often look like this:

Paid Social Without Cookies - Leverage UTM Parameters

Looks complicated, right? This UTM parameter tells me that the reader got to this page by clicking on a link in a Facebook comment I left on one of my posts. Understanding where my traffic comes from is crucial to targeting paid ads and understanding how users move through my funnel. 

These aren’t new, but if you aren’t using UTMs, now is the time to start.

UTMs make tracking where visitors come from easier because they stick around, even if users share it somewhere else.

For example, if someone reads a post on Facebook, then shares it on Twitter and texts it to a friend, that little bit of code will stick around. This means you have a much better idea of where people came from and how they’ve interacted with your brand on social media.

You can generate UTM parameters with one of Google’s URL builders or a URL shortener like Bitly

Use Facebook’s Conversions API

Facebook’s Conversions API allows customers to send data about actions they take directly to Facebook, without relying on browser pixel events. In layman’s terms, this means it’s first-party data, which we’ve already discovered is more accurate.

According to Seer Interactive, this allows marketers to access a wider range of data, is less vulnerable to issues like connectivity problems, and offers far more security.

Paid Social Without Cookies - Use Conversions API

Since Facebook and Instagram are connected, this data can be tracked on both platforms. I expect other social platforms to offer similar tools. In fact, Twitter already does. 

Use Demographic-Based Targeting

Most social media platforms already have robust ways to target based on factors like age, location, gender, and other demographic information. This won’t change because most platforms ask users for this information—which means it’s first-party data.

That means you can still target users on sites like Instagram, Facebook, or TikTok based on demographic information.

Facebook ads, for example, offer a wide range of demographic targeting: 

Paid Social Without Cookies - Use Demographic-based Targeting

The way Facebook gathers this data might change, but your access to the data likely won’t. You can easily target users based on demographics or use lookalike audiences to find an even wider base to target. 

Leverage Interest-Based Targeting

You don’t need to know every step users take to target them successfully with paid social ads.

For example, if you sell women’s clothing, knowing that someone is a woman between the ages of 25 and 35 (from demographics, which we discussed already) interested in fashion (because they follow three fashion bloggers on Instagram) tells you they’re likely to be interested in your brand.

Facebook already allows you to target users based on interests. Most of this data is gathered by actions users take on Facebook, which means you’ll still be able to target based on interests.

I keep mentioning Facebook because it’s the biggest social media platform out there, but other social platforms like Instagram and TikTok offer similar features. 

The end of third-party cookies sounds like a huge deal. However, much of the data you already use for paid social ads isn’t third-party data or can easily be replaced with first-party data.

There’s one more way you should be adjusting your paid social strategy for the end of third-party cookies.

Use Detailed Location-Based Targeting

You likely know you can target users based on their general location. For example, you can target users within a 25-mile radius of your donut shop in Boston.

That’s as far as most marketers get, but platforms like Facebook offer multiple other options, including

  • People living or recently in this location (default option): People list your city on their Facebook profile and anyone in that location based on mobile tracking.
  • People who live in this location: People whose current city from their Facebook profile is in that location. Facebook double checks this by paying attention to their IP address and friends’ locations.
  • Recently in this location: People who were in the selected area recently, as determined by their mobile device. (This includes people living or traveling to the location.)
  • Traveling in this location: People who are more than 125 miles from their home location and in your selected area, as determined by mobile device location.

What does this mean for you? If you’re targeting by location but not digging into the different options, you need to take the time to get more granular with your location targeting.

Paid Social Without Cookies Conclusion Frequently Asked Questions 

How do I use retargeting ads on social media without cookies?

Use a dedicated landing page for an ad campaign, then retarget users (using first-party data) who visited that landing page with your retargeting ads. Note that other solutions may become available as marketers learn more about how marketing will work in a post-cookie era. 

What is the difference between first, second, and third-party data?


First-party data is data you collect yourself; second-party data is data you get from another organization you know, such as another website with a similar audience. Third-party data is aggregated across platforms from various sources. 

Here’s a visual that explains the differences: 

What will replace third-party cookies for social media?

The most obvious replacement is first-party data. Gathering data yourself (or Facebook gathering data about how users interact on their site) is likely the most effective way to replace third-party data. Targeting based on location, demographics, and interests will also become more crucial.  

Is Facebook Pixel a third-party cookie?

It’s actually both, according to Facebook. While the third-party capability is going away, there are still tons of data you can collect with Facebook Pixel. 

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Use a dedicated landing page for an ad campaign, then retarget users (using first-party data) who visited that landing page with your retargeting ads. Note that other solutions may become available as marketers learn more about how marketing will work in a post-cookie era. 


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Here’s a visual that explains the differences: 


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Paid Social Without Cookies Conclusion

The end of third-party cookies might sound like a huge deal, especially for paid social ads. The good news is there are several options for adjusting your social strategy. 

You can gather first-party data, then use that to target your ads. You can better track how users move through your funnel using UTMs. Targeting by location, demographics, or interests will still allow you to target users in your target audience.

Finally, consider using the conversion API options for platforms like Twitter and Facebook. 

Are you ready for the end of third-party cookies? What steps are you taking to protect your paid ad ROI?

How to Prevent A/B Testing from Slowing Down Your Site

You’ve probably used tools like Google Optimize for A/B testing to increase conversion rates on your site.

These tools allow you to test content by showing different variations of the same page to visitors at random. 

A/B testing helps prevent websites from spending time and resources on developing features that turn out to be unpopular with their users. 

Sometimes, however, A/B testing can lead to a slower user experience if the page takes too long to load.

This often happens if the content is being tested too often or if the code is used in a way that slows down the site.

If your content takes too long to load, users may navigate off your site, increasing bounce rates and lowering your chance to convert them. 

In this blog, we’ll cover how to prevent A/B testing from slowing down your site, using tactics such as:

  • making sure that the scripts are implemented directly into the top of the head tag, not using a tag manager 
  • implementing the asynchronous GTM version of Google Optimize 
  • using animations can be used to prevent test experiences from loading too slowly and being too disruptive to user experience

Let’s get started.

How Can A/B Testing Slow Down Your Site?

A/B testing can cause an extra step in loading and displaying web pages.

This happens because two versions of content are being shown to users at random times, collecting data on which page performs better.

All of this back and forth communication can result in a lag in page load time.

It can also cause a flicker of original content (FOOC) that displays for a short moment before the page finishes loading.

A/B testing slows down your site in three ways:

  • making the loading time of your site slower than normal 
  • creating a poor user experience that causes users to leave or prevent them from visiting again later on 
  • delaying any other events, such as an email campaign, because it’s taking longer for pages to load and finish rendering

Page load time is an important metric for your conversions and SEO.

Research has shown the first five seconds of page load time has the biggest impact on conversion rates.

Similarly, 70 percent of consumers say page speed influences their desire to buy.

Ultimately, if you want users to stay on your site and purchase your products, you need to make sure your site is fast. 

google on bounce rates for sites to prevent a/b testing from slowing down your site

How to Prevent A/B Testing from Slowing Down Your Site

To prevent A/B testing from slowing down your site, it’s important to take extra steps to ensure your user experience is not impacted by these tests.

According to Backlinko, the average page load benchmark is 10.3 seconds on desktop and 27.3 seconds on mobile.

If you’re not hitting these markers, you may have a problem.

Whether you’re using Google Optimize or another A/B testing tool, there are a few ways to prevent your site from slowing down.

How to Prevent A/B Testing From Slowing Down Your Site

1. Implement Scripts in the Top of the Head Tag

When you add A/B testing scripts to your site, make sure they are at the top of your head tag and not a tag manager.

This is important because if you make changes to your site, the scripts will be overwritten.

A tag manager is an external script that loads in place of others which can overwrite them without warning and prevent scripts from functioning properly when you make changes to your website.

If you are using the synchronous version of the script, then make sure it is placed after your site’s scripts. 

This will prevent any problems with delays caused by third-party resources on your page, such as ad networks. 

2. Use Asynchronous Tracking

Google Optimize has two versions: synchronous and asynchronous

The synchronous versions prevent any content from rendering until it has been fully loaded. This can prevent your A/B tests from loading in a reasonable time. 

The asynchronous versions prevent any content from rendering until it is ready, but this does not prevent the other scripts on the page from being executed immediately.

The asynchronous version is recommended for most users. It loads in a separate thread from the rest of the website, so it does not prevent other critical tasks from being executed prior to its execution.

The async version will prevent certain animations from slowing down your test experiences while still allowing for other elements on the page to play.  

If you use a tag manager like Google Tag Manager (GTM), or another JavaScript management system, it’s important these are implemented asynchronously and not using the standard version of the Optimize snippet.  

There should be no delays in page load time when Google Optimize is running on your website. The async version can prevent this by adding asynchronous to each script call so they don’t block rendering.

This is particularly important if you don’t run any tests or if they are played in a non-interruptive manner across all pages.

3. Incorporate Animations to Improve UX

If you are using Google Optimize, then you can also use animations to prevent test experiences that may load slowly and be too disruptive to the user experience.

Animations can be used to prevent A/B testing from slowing down your site by giving users something fun to focus on while they wait for content delivery.

For example, you can use animations to keep users engaged before a site fully loads, like this.

How to Prevent AB Testing From Slowing Down Your Site Incorporate Animations

This will tell users their content is being loaded and prevent them from leaving the page.

Remember to always center your animations in a place where your user will be focused.

A loading page is a good example of this or a page where the user will be focused on a specific part of the design.

Remember to prevent animations from interrupting other tests and make sure they are implemented correctly across all pages.

4. Reduce the Size of the Snippet

When adding a snippet to your site, try to keep it as small as possible.

This will prevent the script from slowing down other parts of your site, and prevent other scripts on your page from being delayed or interrupted. 

You can do this by using a tag manager, such as Google Tag Manager (GTM). 

GTM will allow you to shorten the snippet or include the snippet only on specific pages. 

Keep in mind that using a tag manager is not necessary for Google Optimize if you just want to add it once across all of your page’s head tags. 

If you prefer to embed the script into each page directly then make sure they are implemented at the top of the head tag. 

5. Test on the Server-Side

When conducting A/B tests on different server sides, the delay is often much less noticeable. 

For example, you might be using PHP instead of JavaScript on your client-side to prevent content from loading slowly and interrupting users who are trying out their new site design. 

Using different server sides works because the async version will prevent browsers from blocking on a callback function, which would prevent all other content from loading while it’s waiting for code to finish running. 

The benefit of doing this is the server-side tests prevent users with slow connections or high latency from seeing delays when loading content. 

If you can’t do this, it’s recommended to use Google Tag Manager to load these scripts asynchronously so they run after page rendering is complete and don’t affect performance. 

Also keep in mind that when testing on different server sides, it might be more difficult to prevent a slower loading experience from interrupting users since there is no way of calling asynchronous JavaScript into service. 

6. Consolidate and Optimize Variation Code

Consolidating and optimizing variation codes can help prevent A/B testing from slowing down your site. 

Variation codes are the code that is used by Optimize for each variation. 

The more complicated your website, the more variations you need to create and the more often these tests run — which results in slower site speed. 

If too many changes are applied at once on a page it can prevent other scripts from running properly or even prevent the page from loading at all.

This is detrimental to your user experience and can prevent testing from allowing you to continue optimizing your website. 

For example, if a user has JavaScript turned off or does not have it enabled they will never reach the variation that contains optimized content for them and this can set back optimizations by several weeks!

This is why it’s so important to consolidate all of your Optimize codes and scripts directly into the head tag of your site.

7. Keep All Data in a Single File

Your website is full of data and assets that need to load before the page is shown to a user. 

When you run an A/B test these assets and data need to be shared between the two experiences, but can also cause a lot of issues if they aren’t carefully managed. 

For example, say your old site used Font Awesome for all its icons and your new website uses Google Fonts as it is more web-friendly. If your site is running an A/B test, your old site will need to use the same Google Fonts as your new one. 

If you don’t manage this correctly it can cause a considerable delay in how fast the page loads for users because of all these extra assets that are loaded on top of each other. 

To prevent A/B testing from slowing down your site, keep all data in a single file. This means you prevent the page from having to make multiple requests for information. 

All experiments should be stored in a single place that is easily accessible by everyone on your team. This can prevent a lot of issues from occurring, as well as making it much easier to track the progress and performance of each test you are running. 

Frequently Asked Questions About Preventing A/B Testing from Slowing Down Your Site

Does Google Optimize slow down your site?

Google Optimize does not have a big effect on page load times. What’s more important is the time it takes your page to load, latency, and visitor connection speeds.

What should you do after an A/B test?

After you complete your A/B testing you should measure your results and take action based on your findings. It’s also recommended to strategize a new A/B test so you can continue learning.

How do I increase my Google page speed?

Page speed comes down to many factors, but optimizing your A/B tests can help prevent testing from slowing down your site.

When should you not use an A/B test?

If you lack meaningful traffic, don’t have the time or resources to dedicate to testing, don’t have a hypothesis to test, or don’t need more traffic, you should not use an A/B test.

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Google Optimize does not have a big effect on page load times. What’s more important is the time it takes your page to load, latency, and visitor connection speeds.


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After you complete your A/B testing you should measure your results and take action based on your findings. It’s also recommended to strategize a new A/B test so you can continue learning.


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Page speed comes down to many factors, but optimizing your A/B tests can help prevent testing from slowing down your site.


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How to Prevent A/B Testing from Slowing Down Your Site: Conclusion

A/B testing can be a great tool for driving conversions and it’s something every website owner should take advantage of. 

Understanding how to prevent A/B tests from slowing down your site, however, is equally important because slow test experiences are disruptive to the user experience

Sites that use A/B testing effectively will see both an increase in traffic and greater audience insights. 

How have you used A/B testing to improve site performance?