GTmetrix Performance Blog

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Yael Consulting: Increase Google Ads Conversion Rates with GTmetrix

Editor’s note: This guest post is brought to you by Lior Krolewicz, PPC Expert/Founder at Yael Consulting.

“GTmetrix allows me to identify where low conversion rates are being caused by slow load times”


Making the most of Google Ads and improving conversion rates can involve a lot of testing and analyzing. It is possible to spend hours trying different headlines, call-to-action (CTA), colours, buttons, and images to test consumer behavior and try to get readers to click on an ad.

However, all this work may be for nothing if your site is plagued by slow load times.

A client that came to us with an unoptimized website and struggling sales.

As a marketing professional, Founder and CEO of Yael Consulting, I often find that clients are overlooking the impact of load times on conversion rates. Fortunately, GTmetrix allows me to optimize my client’s ads while also identifying where low conversion rates are being caused by slow load times.

With GTmetrix, all interested parties can receive automatic alerts so that issues can be addressed quickly. This tool has allowed me to rapidly help clients convert website visits into sales.

The same client pictured above. We made improvements to the site and conversions picked up accordingly. This period shown had even stronger sales than Black Friday and Cyber Monday.

Let’s take a closer look at how load times affect conversions and how GTmetrix has provided an invaluable tool that supports marketing efforts.


Defining a Conversion

Before we get into the details of the fastest way to increase Google Ads conversion, let’s first define what we are considering a conversion.

There are options, such as “Call-Only” ads or “Google Ads extensions”, where a click triggers a direct phone call or message to the business, without ever visiting your website. I don’t address these conversions here.

Since most advertisers invest in conversions that happen on the website, this is where we have the biggest opportunity to increase our conversion rates – that, at the end of the day, results in more profit for your business.


Why Your Website Speed Matters

Online searchers have the attention span of a goldfish.

That gives you just seconds to capture their attention. On average, consumers spend less than 15 seconds on a website before they decide it is time to move on and look at your competitor’s site.

This is especially true when it comes to our mobile-driven business environment where many shoppers are browsing and making purchases on their phone.

A client of ours saw their website performance decline over time, resulting in shorter visitor sessions.

Imagine that your website takes a full 15 seconds to fully load. Even if you had the most optimized Google Ads account, and drove the best traffic to your website, you would never see the full fruits of your labour.

You’d lose most visitors’ business because they are not going to wait for your website to load and your Google Ads budget is going to waste.

If you want to improve your Google Ads conversion rates, quickly and easily (I know it’s a cliché, but I’ll prove it), it may be time to take a closer look at your website’s loading speed.


Use GTmetrix to Reveal Your Site Speed Problems

GTmetrix can provide you with a detailed look at your site speed from the user’s perspective and identify specific problems that should be addressed.

For example, here is a look at a report generated for a client:

A client’s webpage showed a 7.8s Fully Loaded Time.

As you can see from the Speed Visualization in the Summary section, the page takes 7.8 seconds to fully load.

Here’s what we discovered when assessing their website’s performance.


Unoptimized images are often a cause of performance issues

Some of the most common causes of slow loading times can be traced back to media on the website.
For example, you may have images that are way too big. You can discover problematic images in a number of ways with GTmetrix:

1) Look at the relevant Structure audits

Look at the Structure tab and examine the “Avoid enormous network payloads”, “Efficiently encode images”, or “Properly size images” audits.

These audits can identify images that are unoptimized and can be reduced in file size for faster download speeds.

For example, the “Efficiently encode images” audit can show you images to further reduce in file size by compression.

2) Inspect the Waterfall Chart
If you click on the “Waterfall” tab, and sort the images by size, you can instantly view problematic images and begin to make improvements.
Sort by images and size in the Waterfall Chart to find the largest images on your page.

While image size issues are not the only reasons for a slow site, these fixes are low hanging fruits that many business owners can make. You do not have to be an expert web designer or coder to make many of these adjustments.


Offscreen images extend page load time

GTmetrix is also able to identify images that may be loading, but aren’t even visible to the user.

Images that load outside the main view of the user are wasteful – users load unnecessary data and your page load time may be extended.

You can find such images with the “Defer offscreen images” audit in the Structure section of your GTmetrix Report:

GTmetrix can show you which images are being loaded offscreen so that you can lazyload them.

Utilize lazy-loading techniques to only load these images when the user scrolls to them in the browser.



Third-party video embeds increase requests and JavaScript execution time

Displaying a video with the YouTube or Vimeo embed code often introduces multiple additional scripts related to generating the player onto your site.

This can also increase JavaScript execution time and further delay your page load.

YouTube embeds add more scripts to your page and potentially extend your load time.

Removing these embeds, and linking the video in a static thumbnail image instead can dramatically improve load times.
Create an image thumbnail that links to your YouTube video or initiates a lightbox popup on your page.

You can even initiate the video in a lightbox so that users don’t leave your page.
Replacing YouTube embeds with static image links can improve your page performance.

For most websites, this presents a great alternative to embedding third-party video players to your page.

The best way to improve your page speed and your conversion rates is to understand the current state of your website.

GTmetrix provides you with a detailed look at your overall performance as well as a closer look at specific causes so that you can begin to make meaningful changes without even having to open your Google Ads account page.


Client Case Study

Let’s take a look at how I was able to use GTmetrix to help a client improve conversions for a particular landing page.

Discovering the Problem

With GTmetrix, I was able to quickly identify the exact source of the problem using the Waterfall Chart.

In this case, there was an issue with a call to a third-party API, which extended landing page timings.

This landing page had a very long API request from a third-party service.

GTmetrix provided me with stats on exactly how the page was performing. In this case, Largest Contentful Paint and Total Blocking time performed poorly, likely due to this third-party API request.

By solely updating the third-party API request version, we massively improved Largest Contentful Paint by 0.8s and Total Blocking Time by 1.1s – two important metrics to gauge user experience.

Web Vitals greatly improved after fixing the third-party API request issue.

While Cumulative Layout Shift (CLS) increased slightly, it didn’t impact the growth in conversions as you’ll see.


After we fixed the third-party issue and improved LCP and TBT, sales jumped and the client sold out their top products.

We actually needed to pause the ads to the landing page since they were entirely out of stock!

After the fix, sales jumped up and the client sold out their top products.

This is just one real-world example of how GTmetrix plays an important role in my business by providing me with fast and effective tools for analyzing website performance.



If you have noticed a sudden drop in your Google Ads conversion rates, you may want to take a look at your site before you start tinkering with your ads.

Services like GTmetrix can provide you with a detailed analysis of your site and provide suggestions to improve speeds. Reducing image sizes and making other changes can improve the user experience, ensure they stay on your site longer, and cultivate meaningful conversions.

Make your website faster today, and increase your conversion rates immediately!

About the Author

Lior Krolewicz is the CEO of Yael Consulting, an online marketing consultancy. An ex-Special Ops turned Google Ads expert, he helps eCommerce and lead generation businesses grow profitably. With experience managing budgets of $1 million per month, Lior applies his proven Fortune-500 marketing techniques to small businesses worldwide.

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