🧪 Methodology:
The Performance Experience Indew (PX Index) featured in this article is a score calculated using data from the Chrome User Experience Report (CrUX). To best reflect real-world mobile performance, our scoring model aligns with the Lighthouse weighting:
FCP (First Contentful Paint): 10%
LCP (Largest Contentful Paint): 35%
CLS (Cumulative Layout Shift): 25%
INP (Interaction to Next Paint): 30%
CrUX provides a holistic view of Core Web Vitals for each analyzed site, based on the 75th percentile of real-user data over a rolling 28-day window. Each site’s overall performance score is a weighted average of these four metrics, normalized to a score out of 100.
⚠️ Important note: This is not the PageSpeed Insights score — the rankings below are based exclusively on this custom scoring methodology.
Each month, we analyze the mobile web performance of:
✅ The 50 most visited websites in France
🛒 The top 30 e-commerce platforms
📰 The top 20 media outlets
✈️ The 20 leading travel websites
Let’s dive into the November 2025 leaderboard.
Web Performance ranking: France’s 50 most visited sites
November marks a critical juncture in the web performance calendar: between the Black Friday traffic peaks and the onset of Christmas shopping, technical teams are already preparing for the January sales.
It’s a strategic moment—pages that load faster, with greater visual stability and responsiveness, can make or break the user journey and directly impact conversions.
🏆 TOP 3: WHO’S LEADING THE PACK?
The top three have seen some shifts this month:
- 🥇 The Ministry of the Interior remains unbeatable.
- 🥈 Assurance Maladie also holds its ground, demonstrating consistent excellence with an INP of 112 ms.
- 🥉 BFMTV secures third place once again, thanks to a solid LCP and maintainable performance.
📈 BIGGEST IMPROVEMENTS IN THE TOP 50
Service-Public.fr (+16): A major leap due to a 1.2-second LCP optimisation, bringing all metrics into the green and significantly improving the initial experience.
AliExpress (+5): Reduced loading time (LCP −115 ms) eases the journey through product pages.
Boulanger (+4): Notable visual stability gains (CLS −0.05), crucial for smoother e-commerce experiences.
But (+4): More reactive and stable (LCP −141 ms), ideal for year-end shopping.
La Redoute (+3): Faster content display (LCP −77 ms), making the user journey more fluid.
Le Parisien (+3): Better readability on arrival (LCP −33 ms), vital in the competitive media space.
Dailymotion (+3): A more pleasant experience with quicker page loads (LCP −239 ms), though still room for improvement.
These examples show that even seemingly minor improvements can yield significant ranking gains. A key focus this month is Interaction to Next Paint (INP), which measures full navigation responsiveness—not just the first interaction like FID.
🔻 FALLING BACK
Some sites struggled this month, particularly with visual stability—critical in high-traffic periods:
Free (−14): CLS deteriorates (+0.05), indicating layout instability.
Le Monde (−9): Slightly slower loading (+43 ms LCP) and worsened CLS (+0.03).
PagesJaunes (−9): Increases in both LCP and CLS edge the experience towards the warning zone.
20 Minutes (−9): A sharp rise in CLS (+0.06) affects readability—problematic for real-time news.
These drops serve as a reminder: performance wins require ongoing attention. Without regular maintenance and monitoring, it’s easy to slip.
📊 WHERE DOES THE TOP 50 STAND ON CORE WEB VITALS?
✅ 37% of sites now pass all 3 Core Web Vitals (down from 41%), a stable figure reflecting long-term efforts.
✅ 80% deliver a fast LCP (<2.5s).
✅ 76% maintain strong visual stability (CLS <0.1).
⚠️ Only 53% offer smooth interactivity (INP <200 ms), the most difficult metric to optimise.
INP remains the toughest metric, because it measures not just one interaction but the responsiveness of the entire experience. A page might feel fast on the first click… but become frustrating from the second.
This month confirms the importance of regular optimisations: better managed CLS or a few dozen milliseconds off LCP can propel a site up several places. At Fasterize, we see it every day: web performance is both a business lever and a critical SEO & UX criterion. Automating, monitoring and maintaining these optimisations is essential to stay competitive. We see a podium that clearly shows how every millisecond counts!
Now, here is the e-commerce ranking, for which web performance is a business and SEO challenge.
E-commerce Performance
As traffic surges in November and December, most e-commerce platforms have stabilised—but a few have gone further, fine-tuning the purchase journey for speed, fluidity, and stability.
🏆 TOP 3: NECK AND NECK
🥇 IKEA (+1): Takes the lead with faster loading (LCP −159 ms), smoother interactions (INP −7 ms), and near-perfect stability.
🥈 Sézane (−1): A slight increase in LCP (+18 ms) knocks it to second, but the experience remains excellent.
🥉 Gifi (=): Holds steady with all key metrics in the green.
The top 3 are separated by less than half a point—proof that micro-optimisations can tip the balance. All three meet Google’s Core Web Vitals, including INP.
📈 WHO’S MOVING UP?
Zalando (+2): Improved LCP (−109 ms) and INP (−19 ms) enhance journey fluidity.
BUT (+2): Gains with faster loading (LCP −141 ms) and better stability (CLS −0.02).
Castorama (+2): Smoother interactivity (INP −27 ms), improving shopping experiences.
🔻 WHO’S FALLING BEHIND?
eBay (−3): LCP slowed by +47 ms, potentially affecting mobile conversions.
ManoMano (−3): INP slightly increased (+10 ms).
Groupon (−2): Longer loading time (LCP +227 ms) risks deterring users.
Cultura (−2): Worsened stability (CLS +0.06) leads to visual shifts during scroll.
📊 Core Web Vitals – E-commerce Summary
✅ 81% have strong CLS (up from 77%)
✅ 68% meet the INP threshold (up from 65%)
✅ 81% retain a fast LCP (stable)
✅ 49% now pass all 3 CWV (up from 38%)
Retailers who optimised early are well-positioned for seasonal peaks, with faster experiences, higher conversions, and better ROI.
Media websites: The most visited sites on mobile
Speed, interactivity and stability are now just as vital for retention as editorial quality. This month’s rankings reflect a few key movements.
🏆 TOP 3: A CONSISTENTLY COMPETITIVE PODIUM
🥇 BFMTV (=): Still leads with exceptional INP (122 ms) and swift rendering.
🥈 Franceinfo (+1): Big LCP improvement (−133 ms) boosts its ranking.
🥉 Le Parisien (+2): Minor optimisations (−33 ms LCP) and improved stability edge it onto the podium.
The gaps are narrow at the top, where even small optimisations can make a difference!
📈 CLIMBING THE RANKS THIS MONTH:
Le Parisien (+2): Incremental gains pay off in a highly competitive space.
🔻 DECLINES:
Le Monde (−3): Slight overall decline (+43 ms LCP, +3 ms INP, CLS +0.03) pushes it down.
20 Minutes (−7): CLS rises significantly (+0.06), reducing readability and ranking.
In the media sector, user experience is a critical retention factor!
The sector remains strong:
90%+ of major media sites score 90+ on the PX Index
✅ 90% meet the LCP threshold
✅ 74% meet CLS targets
❌ Only 32% meet the INP threshold
❌ Just 21% pass all three CWVs
Consistency—not just isolated improvement—is the key to long-term performance.
Travel: Web Performance of the most visited travel sites
As users begin planning winter holidays, the travel sector continues to struggle with Core Web Vitals. Long load times and sluggish interactivity persist, though a few leaders stand out.
🏆 TOP 3: UNCHANGED PODIUM
- 🥇 EasyVoyage (=): Still first, with fast load times and stable pages.
- 🥈 SNCF Connect (=): Despite a slow LCP, its INP keeps it in second.
- 🥉 Tripadvisor (=): Solid overall, but INP (203 ms) limits competitiveness.Only Easyvoyage and SNCF Connect have all metrics in green.
📈 ON THE RISE:
Ouigo (+3): Modest gains in INP (−25 ms) and CLS (−0.03) suggest momentum.
Liligo (+2): Significant LCP drop (−343 ms) shows promise, though still in the red.
These gains show that steady, incremental optimisation can make a difference even in a historically slow sector.
🔻 DECLINES:
Trivago, Kayak – experienced minor regressions in interactivity and loading.
📊 TRAVEL CORE WEB VITALS – NOVEMBER 2025
❌ Travel still struggles : Among the sectors analysed, travel displays the weakest metrics, signalling that substantial optimisations are both possible and necessary. Even leading sites have further to go.
✅ 47% meet the LCP threshold (vs 42%)
✅ 63% meet CLS (stable)
❌ Only 11% meet INP (<200 ms)
❌ 11% pass all 3 CWVs
⚠️ Average PX Index: 76 (vs 91 in media and e-commerce)
The average PX Index score remains below e-commerce and media, a sign that the sector still has a long way to go.
That wraps up this month’s Web Performance Ranking! As you’ve seen, rankings shift significantly—both overall and by sector. One key takeaway: performance is never static. It evolves with every change you make to your website. That’s why web performance isn’t a one-time project—it’s an ongoing team effort.
Behind every millisecond saved lies a better user experience, reduced friction, and smoother paths to conversion.
In 2025, users expect more than ever.
To stay ahead, it’s not just about meeting Core Web Vitals thresholds—but sustaining them over time. That’s what drives real results: stronger UX, improved SEO, and better business outcomes.
With consistent effort and the right monitoring, you can climb the rankings—but more importantly, you’ll deliver a better experience than your competitors, and see your conversions rise as a result.
⭐ See you next month for a fresh look at the web experience across top French websites!
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