Assistance Needed with Unused JavaScript and GTM Configuration

Hello @vsalgadinho, thanks for opening a support topic and sharing all the details you have. I’d be happy to help you with this. So that I can check your site, please could you share your?Site Health information. You can?use this form?to share privately if preferred.

Once you have shared this then I can take a look at your site and ensure everything looks as it should and that there isn’t anything that shouldn’t be there or anything interfering with Site Kit on your site.

Let me know if you have any other questions in the meantime.

Hi @adamdunnage , I submitted the form right after posting this topic, please check it.

Thanks @vsalgadinho, I just spotted that. Looking at your site’s source code I can see straight away that the Site Kit placed code on your site is being altered and minified. Looking at your active plugins I can see that you have the LiteSpeed cache plugin. Could you please check your LiteSpeed settings to see if you are minifying JS/CSS and if yes could you disable these settings?

Once disabled, let me know and I can check your site source code once more to see if the Site Kit placed code then displays as it should?

If this does appear to be the cause then I can share with you a way to exclude Site Kit code from being minified on your site allowing you to still use the LiteSpeed cache plugin with Site Kit.

Thank you for your prompt reply.

I have already disabled all CSS/JS page optimisation options except the Font Display Optimisation option in the LiteSpeed plugin as requested. Please check the source code of the website again.

Please check that the Google Tag configuration is set up correctly. The tag should only be used for Google Analytics at the moment. I want to make sure that no problems occur or settings are overlooked during setup, which could also be the cause of the problem.

@vsalgadinho Interestingly It still looks the same. Could you now try excluding Site Kit resources by excluding the?content/plugins/google-site-kit path?which can be done from LiteSpeed Cache > Page Optimization > [8] Tuning > JS Excludes.

With regards to your question about unused JavaScript, this is normal if you’re using JavaScript libraries such as Google Analytics or any third party JavaScript Resource. It can appear due to not all the JavaScript from these libraries being executed at once, resulting in some unused JavaScript. You’ll find out more on this If you run PageSpeed Insights test on other websites that load third party scripts, you’ll likely find the same.

For further information on this you can also review this Lighthouse GitHub issue, with Lighthouse being the technology used to run PageSpeed Insights scores.

While you can disregard this notice as being normal, you may wish to consider AMP on your site if you’re looking to improve performance score.

I have already added the suggested path to be excluded in Litespeed. Any change?

As for the AMP, I will have a look at it, thanks for the suggestion!

@vsalgadinho Thanks for confirming. Could I also ask you to temporarily switch your site theme to a default WordPress theme?

Done! Twenty Twenty-Four activated!

@vsalgadinho I still don’t see any change which is unusual. One other type plugin that we have seen conflicts with is maintenance and coming soon plugins. Could You also try disabling this plugin? Thanks for your patience and cooperation with this thus far!

Coming Soon plugin deactivated. I am the one who needs to thank you for your help!

I wonder if I can send you my WP and Google Analytics/Tag Manager credentials via a private form instead (I will change them afterwards), so you can check everything and run the appropriate tests?

Hi @adamdunnage,

I just wanted to let you know that I had inadvertently enabled the option offered by Google Analytics to place code in Site Kit, but I had my Google Tag linked to GA4 and the service was also linked in Site Kit.

I am using only the “Place Code” option from GA in Site Kit. I also disabled the Tag Manager service and removed all tags, variables and triggers from Google Tag Manager, and created a new data stream for GA4. However, it says “Data collection is not active for your site”. I am not sure if this is normal because the changes were made recently, or if I have done something wrong (again)!

Anyway, I then run new PageSpeed tests (with CSS/JS Lite speed page optimisation options disabled and my theme instead of the default WordPress theme). Performance has improved somewhat (now fluctuating between 89 and 96), although there are still two issues related to Site Kit/Google Tags:

Reduce the impact of third-party code - Third-party code blocked the main thread for 250 ms
Reduce unused JavaScript - Potential savings of 36 KiB
Eliminate render-blocking resources - Potential savings of 60 ms

I am not sure if there is something I can do about this?

• This reply was modified 7 months, 3 weeks ago by vsalgadinho.

@vsalgadinho Thanks for clarifying this and it is advised that if you are choosing Site Kit to place your module code, that you shouldn’t also manually place the code on your site.

Glad to hear that you are noticing performance improvements on your site. When checking your site source code once more I am still unable to see the Site Kit placed code which is unusual. I am not seeing any tags that are being fired when checking your site in https://tagassistant.google.com/.

I would recommend at this stage checking with your hosting provider to see if there are any security/firewall blocks on Site Kit or Google services or anything else that would prevent this. If you have no success with this then please let me know and we can continue to look into this for you.

Hi @adamdunnage,

I have used the tag assistance and it has identified one tag, although no hits are shown as the site is new and I have no traffic yet. As for the firewall, I am using Cloudflare custom waf rules but I have not detected any blocking from Google or Google services. Could you please tell me what request is being made so I can check it further?

@vsalgadinho Thanks for confirming you are using Cloudflare waf rules. Are you able to temporarily disable Cloudflare on your site to check once more?

Can You just also confirm you are using Site Kit to place your Analytics code snippet? Would you be able to share a screenshot of this in your Analytics settings?

I have already disabled my waf blocking rules, and yes, I am using Site Kit to place my Analytics code snippet. I am not able to upload the screenshot here (I do not know why, but I can not manage to load it), but in the “Code Snippet” of my Analytics section of Site Kit it says: Snippet is inserted.

• This reply was modified 7 months, 3 weeks ago by vsalgadinho.