Does page size really matter for SEO when internet connections keep getting faster?

Don't faster connections automatically compensate for heavier pages?

That's the classic mistake Martin Splitt debunks here. Bandwidth increase is real, but it's not keeping pace with the exponential curve of modern webpage weight.

In concrete terms? The median webpage weighed around 500 KB in 2011. It now exceeds 2.5 MB on mobile according to HTTP Archive. Meanwhile, median mobile connection speeds haven't quintupled — nowhere near it.

What's the difference between theoretical connection speeds and real-world experience?

Operators love broadcasting their maximum speeds: 4G, 5G, fiber. But ground reality is entirely different. Latency, variable coverage areas, bandwidth sharing — all of this creates a massive gap between theoretical bandwidth and what users actually experience.

Martin Splitt talks about median speeds, not maximum speeds. That's what matters to Google: the average user's experience, not the lab tester's with a dedicated connection.

Why is Google pushing this point so hard right now?

Because the web industry has grown comfortable with a deceptive technical comfort zone. Developers often test on recent hardware with premium connections. The median user is elsewhere: mid-range smartphone, unstable 3G/4G connection, limited data allowance.

This statement reminds us that Core Web Vitals — notably LCP (Largest Contentful Paint) — are directly impacted by the total weight of resources to load.

• Median mobile page size exceeds 2.5 MB and continues to grow
• Median connection speeds progress much more slowly than page size
• The gap between theoretical bandwidth and real experience is underestimated by developers
• Core Web Vitals remain directly affected by resource weight
• Page size optimization remains an indirect ranking factor via UX

Does this statement really change established SEO practices?

No, and that's precisely the problem. Google has been repeating the same message for years, yet the median page weight keeps climbing. Martin Splitt's statement brings nothing new — it confirms a reality that SEO professionals already know.

What's missing here? Concrete thresholds. At how many MB do you actually lose rankings? What's the measured correlation between page weight and SERP positions? [To verify] because Google remains vague on quantifiable impacts.

Does the median connection speeds argument really hold up?

Yes and no. Splitt is right in principle: median connections progress slower than page weight. But it needs nuance by market. In Western Europe, 4G+ coverage is massive and data plans are generous. In other geographic zones, the argument is airtight.

If your audience is primarily urban French with recent hardware, the impact will be less than if you're targeting emerging markets or rural areas. Your traffic's geographic and demographic context completely changes the equation.

Isn't Google hiding other motivations behind this narrative?

Let's be honest: lighter pages also mean less bandwidth consumed by Googlebot. Fewer server resources to crawl, less data to process for indexing. What Google presents as UX advice also has a direct economic advantage for them.

That said, the argument remains valid. The fact that it also serves Google's interests doesn't make it false — just less altruistic than it appears.

What are the priority actions to reduce your page weight?

Start with a real weight audit: use WebPageTest or PageSpeed Insights under real mobile conditions (3G throttling). Don't rely on your local tests with fiber. Identify the heaviest resources — usually unoptimized images and redundant JavaScript.

The quick wins are always the same but underutilized: modern image formats (WebP, AVIF), Brotli compression server-side, aggressive CSS/JS minification. These optimizations can cut your weight in half without touching visible content.

How do you verify real impact on your Core Web Vitals?

Don't settle for PageSpeed Insights — lab data doesn't reflect on-the-ground experience. Google Search Console > Page Experience shows you real user metrics via CrUX (Chrome User Experience Report).

Compare your heavy pages vs light pages: if your median LCP exceeds 2.5 seconds on mobile, weight is probably the culprit. Correlate this data with your SERP positions — some ultra-competitive sectors show clear correlations.

What mistakes should you avoid in weight optimization?

Never sacrifice useful content to save a few KB. A complete article with relevant visuals weighing 1.5 MB will always beat a skeletal page of 300 KB with no added value. Weight optimization serves UX, it doesn't replace it.

Also be wary of overly aggressive automatic optimization tools that break layout or degrade visual quality beyond reason. Always test visually after optimization.

• Audit real page weight under mobile conditions (3G throttling)
• Convert all images to modern formats (WebP minimum, AVIF if possible)
• Enable Brotli compression server-side for HTML/CSS/JS
• Implement lazy loading on images and iframes outside initial viewport
• Minify and bundle JavaScript to reduce request count
• Use a CDN to bring static resources closer to users
• Monitor real Core Web Vitals via Search Console, not just lab tests
• Eliminate unused web fonts and preload critical fonts
• Regularly audit and clean up accumulated third-party plugins/scripts