Is page speed really just a minor ranking factor in SEO?

Why does Google downplay the importance of speed in its algorithm?

Google primarily aims to deliver relevant results. An ultra-fast site that lacks relevance has no value for the user. This is why page speed functions as a secondary differentiating factor: it mainly comes into play when two pages are considered equivalent in terms of content and authority.

Practically? If your competitor publishes a mediocre article on a fast site, and you offer expert content on a moderately fast site, you still hold the advantage. Speed does not compensate for a deficit in quality or relevance.

What do 'relative speed' and 'industry standard' mean?

Google does not set an absolute threshold ('2 seconds maximum'). It evaluates your site's speed relative to your industry. An e-commerce site with complex product listings won't be judged by the same criteria as a minimalist blog.

The algorithm uses data from the Chrome User Experience Report (CrUX) to establish these norms. If most sites in your niche load in 3 seconds, and you take 5 seconds, you're falling behind. Conversely, if you’re at 2.5 seconds, you’re within the acceptable average — there’s no need to aim for 0.8 seconds to gain SEO points.

Does speed only affect ranking or other SEO metrics as well?

Speed impacts three distinct levers. First lever: direct ranking, which is indeed marginal. Second lever: crawl budget. A slow site slows down Googlebot, which will crawl fewer URLs per session. If you manage a large site, this is critical.

The third lever, often underestimated: behavioral signals. Excessive loading times increase bounce rates and reduce time spent on the site. These indirect metrics can influence your ranking, even if Google does not officially use them as criteria.

• Speed is a minor ranking factor, but its overall impact on SEO is much broader through crawl and UX.
• Google evaluates speed relatively, by comparing your site to the standard in your industry.
• A site that is too slow incurs a penalty, but an ultra-fast site does not necessarily gain significant boosts.
• The Core Web Vitals (LCP, FID, CLS) have been included in this speed assessment since 2021.
• Absolute priority: avoid excessive loading times rather than aiming for technical perfection.

Is this statement consistent with real-world observations?

Yes, and it’s one of the few points where Google remains transparent and consistent. A/B tests conducted by agencies regularly show that a drastic speed optimization (going from 4 to 1 second) rarely produces a spectacular ranking gain if the content remains the same.

Conversely, when a site jumps from 8 seconds to 2 seconds, a notable improvement is often observed — not because of a direct boost, but because the site finally escapes the 'excessively slow' zone that triggered a penalty. It's the difference between 'optimizing' and 'fixing a blocking issue.'

What nuances should be added to this claim?

Google speaks of 'a small part of the algorithm,' but provides no figures. Is it 2% of the total weight? 5%? Impossible to know. This opacity makes it difficult to make decisions between optimizing speed or investing in content production. [To verify]: the exact scope of this 'small factor' remains unclear.

Another nuance: speed influences metrics not officially recognized by Google but likely utilized. A high bounce rate caused by a slow site can signal to Google that the page disappoints users. Even if Google denies using bounce rate as a direct criterion, these engagement signals matter — and speed is indirectly part of it.

In what cases does this rule not fully apply?

On highly competitive queries, where the top ten results display nearly equivalent quality content, speed can make the difference. If you are fighting for position 3 on 'car insurance Paris' and are tied with a competitor on all major criteria, this is where micro-factors like speed come into play.

Another specific case: sites generating a massive volume of pages (marketplaces, aggregators, media). On these platforms, speed impacts the crawl budget. A slow site risks having some pages never crawled and thus never indexed. In this context, speed becomes a critical limiting factor, even if its weight in ranking remains low.

What should you do concretely to stay within the acceptable norm?

First step: benchmark your speed against your direct competitors. Use PageSpeed Insights to analyze 5-10 sites in your niche. Look at their Core Web Vitals scores based on real data (CrUX), not lab tests that do not reflect actual usage.

If you are at or slightly below average, focus on quick wins: image compression, lazy loading, caching, CDN. No need to rebuild the entire architecture. If you are significantly behind (orange or red on several metrics while competitors are green), then you need to dig deeper: underpowered server, blocking JavaScript code, multiple unoptimized queries.

What mistakes should be avoided when optimizing speed?

Classic mistake: sacrificing functionality to gain 0.2 seconds. I've seen sites remove personalization modules or product filtering features to improve their PageSpeed score. Result? Better technical score, but a plummeting conversion rate.

Another pitfall: focusing solely on the PageSpeed score and ignoring CrUX metrics. The lab score (Lighthouse) is useful for diagnosing, but Google uses real data from Chrome users. A perfect lab score guarantees nothing if your actual visitors experience slow loading due to a degraded mobile network.

How can I check if my site is not suffering from a speed-related penalty?

Install the Search Console and check the Core Web Vitals report. Google will indicate which URLs are deemed 'good,' 'needs improvement,' or 'poor.' If most of your pages are green, you’re in the clear. If you have red, prioritize strategic URLs (those that generate organic traffic).

Supplement this with tracking in Google Analytics 4 of real speed metrics: LCP, FID, CLS. Cross-reference this data with your average positions in Search Console. If you see a negative correlation (slow pages = lower positions), that’s an alert signal. Otherwise, speed is probably not your bottleneck.

• Benchmark the speed of 5-10 direct competitors via PageSpeed Insights (CrUX data)
• Analyze the Core Web Vitals report in the Search Console to identify problematic URLs
• Prioritize optimizations on pages generating organic traffic rather than across the entire site
• Measure real impact: correlate speed and average positions in the Search Console
• Avoid being obsessed with a perfect score: aim for the industry average, not absolute perfection
• Monitor the crawl budget: if Googlebot crawls fewer URLs than before, speed may be the cause