Optimum Web
SEO · AEO · GEOPerformance OptimizationSEO-PF-03

Analytics Defer Setup

GTM, GA4, Yandex Metrica deferred until window.load event. Removes render-blocking analytics. 10-20 point PageSpeed improvement.

Analytics Defer Setup by Optimum Web is a fixed-price service: GTM, GA4, Yandex Metrica deferred until window.load event. Removes render-blocking analytics. 10-20 point PageSpeed improvement. Price: $89. Delivery: 1 business day. 14-day warranty.

GTM deferred (window.load event)
Yandex Metrica deferred (if present)
GA4 deferred via GTM trigger (if not using GTM)

+3 more deliverables below

$89
Fixed price, USD · no hidden fees
1 business daySenior only
GTM deferred (window.load event)
Yandex Metrica deferred (if present)
GA4 deferred via GTM trigger (if not using GTM)
window.load implementation (vanilla JS)
Network tab verification screenshot
Confirmation that analytics data is not impacted

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or request a custom quote

+373 22 843569
PayPal · SSL
👨‍💻 Senior only
14-day warranty
🆔 SEO-PF-03

What You Get

Analytics scripts (GTM, GA4, Yandex Metrica) loaded synchronously in <head> are one of the most common causes of poor PageSpeed scores. Loading them early blocks your page from rendering and increases INP. Deferring them to after window.load fixes this without losing any data. We implement defer/async loading for all your analytics, verify the implementation via Network tab, and confirm no data loss.
  • GTM deferred (window.load event)
  • Yandex Metrica deferred (if present)
  • GA4 deferred via GTM trigger (if not using GTM)
  • window.load implementation (vanilla JS)
  • Network tab verification screenshot
  • Confirmation that analytics data is not impacted

How It Works

STEP 01
Analytics audit

We identify all analytics and tracking scripts on your site and how they're currently loaded.

STEP 02
Defer implementation

Scripts updated to load via window.load or async/defer attributes. GTM configuration updated.

STEP 03
Verification

Network tab confirms deferred loading. Analytics dashboard checked for data continuity. Done in 1 day.

Who Needs This

  • Websites with GTM or analytics in <head> blocking render
  • Sites with 'Eliminate render-blocking resources' PageSpeed warning
  • Any website using 3+ analytics or tracking scripts
  • Companies after a quick PageSpeed win

START HERE

Not Sure Where to Start?

Our Full Website SEO/AEO/GEO Audit ($149) identifies every issue — technical SEO errors, missing schema, AI visibility gaps, and Core Web Vitals problems — and gives you a prioritised fix list.

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$89 · 1 business day · 14-day warranty

Secured by PayPal · 256-bit SSL encryption

+373 22 843569

or request a custom quote

Start with a full audit — $149 one-time

Learn more

Frequently Asked Questions

Will deferring analytics cause data loss?+
No — page views and events that happen after window.load (the vast majority) are still tracked. Very fast page exits (<0.5s) may not be captured, but these contribute minimal actionable data.
I use Google Tag Manager — does that change the approach?+
With GTM, we configure the GTM tag itself to load deferred. All tags inside GTM then load after the page is interactive.
Is this the same as adding async/defer to the script tag?+
Similar but more controlled. Window.load ensures analytics loads only after all page content is ready, preventing any render interference.

Not Sure Which Service You Need?

Start with a Full Website Audit — $149 · 3 business days

Get Full Audit — $149