Which one is more accurate, Pagespeed Insights or Gtmetrix?
Many times I have checked my website JustBaazaar.com in GTMetrix and Google Pagespeed Insights.
Let’s See the difference below :

GTmetrix

GTmetrix Performance Report

Google PageSpeed Insights

Google Pagespeed Insights

Both results are taken at the same time. However, the difference is quite huge. GTmetrix’s result is awesome if it is correct. While the result of Google PageSpeed is threatening.

Result Difference Summary

FCP by GTMetrix – 843 ms
FCP by GPS – 8 seconds

LCP by GTmetrix – 1.1 second
LCP by GPS – 8.9 seconds

As web performance impacts SEO and overall website reputation, it is important to know. I, however, do not know which website is accurate. if you have any ideas or suggestions, please comment below and let me know. Thanks in advance.

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  1. justbaazaar Listing Owner

    Let me give you an Introduction to the PageSpeed tools that you can use.

    You should keep one thing in your mind your website theme has to be something sleek or something minify and this is how Google recommends you to keep your website nowadays.

    Some Great Pagespeed testing tools I recommend

    Google’s Pagespeed Insights tool
    Webpagetest
    Pingdom Tools
    Google Page Speed Insights:

    Now let’s move on to PageSpeed Insights tool from Google.

    In this tool, you will get a set of guidelines that you need to implement in your site, to get the best PageSpeed possible.

    Since this tool is from Google itself, the algorithm that is used in this tool is up to date and you can rely upon the recommendations that are given by this tool.

    But you don’t need to chase this 100 out of 100 PageSpeed scores from this tool.

    If you’ve got to load your website in under 2 seconds, then these scores don’t matter.

    At the end of the day, the important thing that matters is the page load time and not this PageSpeed score.

    Web Page Test:

    Now let’s come to this second tool, Webpagetest.

    This tool allows you to check your load time from various locations, across various devices, browsers, and connection speeds.

    Moreover, this is the only tool where you can check the difference in load time between the first view and repeated views.

    Based on the locations and connection speed you choose, your load times can vary significantly.

    If you choose a location nearer to your server, your load time will be good.

    Faster connection speeds can give quicker load times, but sometimes you might want to check how your website performs in a slower 3G connection too.

    Sometimes, even after optimizing to the maximum possible recommendations given in page speed insights, you might not get the best page loading time.

    For example, you might be getting a page load time of around 5 seconds or sometimes, even more than that.

    In that case, this web page test tool will give you some more easy recommendations that you can implement on your website, to improve the Page loading time.

    Instead of scores, Webpagetest gives you grades for several different things such as security, First-byte time, Compress images or transfer, cache static content, etc, and it also shows whether you’ve added a CDN to your website or not.

    CDN means Content Delivery Network.

    If you want to know more about CDN you can comment below.

    There are multiple load times displayed here in Webpagetest.

    The load time you need to care about, are these.

    First Byte Time, the repeat view load time under Document complete and Fully loaded columns.

    Even after optimizing your website based on our Pagespeed techniques, if you’re getting slower load times, then the first thing we will inspect is this First Byte time.

    It’s the time taken from the moment a user enters your URL on their browser to the moment when their browser receives the first byte of your website from your server.

    So, technically the users will be seeing just a white blank page with the loading animation repeating during this first-byte time.

    Around 75% of this first-byte time which is also called server response time can be reduced by switching to a fast hosting provider or a powerful plan that your website needs.

    if you want to select a better hosting provider for better page speed performance you can go here

    Technically, more CPU cores, RAM, fast SSD storage can reduce this first-byte time.

    This can be further reduced by opting for HTTPS protocol and adding a CDN to your site.

    Google recommends you to keep the first-byte time or the response time under 200 ms or 0.2s, which is possible only if you host your site with a VPS or a Dedicated hosting plan costing from $50 to $200 per month.

    But still with a shared hosting plan in the range of $5 a month you can get a first-byte time within the maximum allowable range of < 600 ms or 0.6s. If your website takes more than 600 ms of first-byte time, then it’s time for you to switch your hosting provider. When it comes to guidelines or recommendations to be implemented on your site follow these 2 tools alone, PageSpeed insights tool and Webpagetest tool because these 2 tools are the industry standard, reliable, and updated ones when it comes to recommendations. Moving onto the third tool, Pingdom tools. It allows you to check the load time of your website from various locations. Though it provides you this performance insights info, don’t take this into account, and don't try to optimize your website based on these recommendations as they are a bit outdated and these recommendations don’t necessarily improve your load times. The reason we are using Pingdom tools is that, since it doesn’t check your site thrice along with repeat view load times and all, it’s generally quicker than webpage test and it’s much simpler to use. Remember this But, let me give you some Benchmark timing, which you can set, as a target. In the web page test tool, you should get a first byte timeless than 0.6s and a fully loaded repeat view time of less than 3 s. These are the maximum allowable time. But, if you can achieve something less than this benchmark time, that's superb. You can get such load times only when you use a PageSpeed Optimized minimalistic theme along with the reasonably fast server and the best page speed optimization possible. which you can learn, comment below if you want to But, if your load time falls just under 3 seconds, that's good too. No issue at all.