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Monthly UK Web Performance rankings – Most visited mobile sites

Summer sales are in full swing — and with them, higher stakes for digital performance.

🔍 Key insights:

  • Only 26% of top sites meet all Core Web Vitals thresholds.
  • Interactivity (INP) remains the biggest challenge, especially in e-commerce and travel.
  • Travel is the worst-performing vertical overall — just 7% of sites get all metrics in the green.
  • Some brands like Snapchat, H&M, The Trainline abd Parkdean Resorts made strong improvements.
  • Others like Office and Wales Online saw major slowdowns.

 

📈 Every millisecond counts — especially when traffic peaks.
Discover where your site stands and how to improve the experience your users deserve.

It’s time to take a look at this month’s webperf rankings of the most visited sites in the UK.

We’re excited to unveil the new edition of our UK Speed Ranking — a snapshot of real-world mobile performance across four key sectors : Top 50 most visited, 🛒 E-commerce, 📰 Media and 🧳 Travel. 

But before diving into the results, let’s remind ourselves why fast-loading websites are critical to online success.

📊 How the rankings are calculated ?

As a reminder, the score obtained for the sites presented in this article is calculated using a methodology based on CrUX (Chrome User Experience Report) data. In order to give the best evaluation of each site’s mobile web performance, we based our calculations on the weighting of the Lighthouse score :

  • FCP represents 10% ;
  • LCP represents 35% ;
  • CLS represents 25% ;
  • INP represents 30%.

CrUX provides an overall assessment of the Core Web Vitals metrics for each site analysed. This metric is calculated by taking the 28-day rolling average of the 75 percentile performance throughout the month. The overall performance score is determined by a weighted average of the scores for each metric. This score, rated out of 100, is used in the rankings below (so it is not the PageSpeed score that is used in the rankings below).

⚡ Why speed matters ?

Speed isn’t just technical — it’s strategic ! Studies show that website performance directly impacts user experience, conversion rates, and revenue. According to Google, 53% of mobile site visitors leave a page that takes longer than three seconds to load. For UK e-commerce sites, this statistic is particularly concerning given the intense market competition.

A Deloitte study reveals that a 0.1-second improvement in mobile site speed can increase conversion rates by 8.4% for retail sites. These figures highlight the importance of prioritizing loading speed to stay competitive.

Top 50 : Webperf ranking of the top 50 most visited websites in the United Kingdom

 

From government services to e-commerce giants and media brands, delivering a smooth, responsive, and stable experience is no longer optional.

🏆 TOP 3 LEADERS

The podium remains unchanged — a sign of consistency in performance and digital excellence:

  1. 🥇 Wikipedia (0): leads the pack with an outstanding INP of 105 ms, ensuring seamless interactivity.
  2. 🥈 Indeed (0): close behind, with 111 ms INP and a solid all-around experience.
  3. 🥉 Gov.uk (0): not only interactive (127 ms INP) but also the fastest site to load in the entire ranking.
 

🌟 NOTABLE IMPROVEMENTS

While some climbers show no measurable changes in Core Web Vitals, others clearly stepped up:

  • Zoopla (+2): achieved a 66 ms reduction in LCP, improving loading speed for users browsing property listings.
  • DIY (+3): saw improvements across the board with –37 ms on LCP and –8 ms on INP, making the user journey more fluid.
  • PayPal (+3): delivered content faster with –113 ms on LCP, a positive sign for frictionless transactions.
  • BT (+2): reduced layout shifts (–0.06 CLS), a step toward a more stable interface.
  • Next (+2): enhanced interactivity (–17 ms INP), a welcome gain during high-conversion journeys like checkout.
  • Snapchat (+4): made strong progress with –127 ms on LCP and –103 ms on INP, directly improving page responsiveness and first impressions.

These sites reflect ongoing efforts to improve web performance, which will likely continue to positively impact user experience and engagement. These improvements are the result of consistent efforts to optimize their systems, with particular attention paid to INP. It’s worth noting that having a good FID does not necessarily mean having a good INP! FID only measures the first interaction, whereas INP assesses interactivity throughout the entire browsing session. The efforts made by these players to improve their web performance metrics are not only beneficial for their rankings but are also crucial for providing a quality user experience, reducing bounce rates, and increasing engagement on their platforms.


📉 CHALLENGES IN THE RANKINGS

On the flip side, some websites saw noticeable drops in user experience metrics:

  • Mumsnet (–2): suffered +127 ms on LCP and +14 ms on INP, slowing down both page rendering and interaction.
  • Santander (–2): increased LCP by +101 ms, with a slight rise in INP as well.
  • Office (–6) and The Sun (–2): both recorded significant regressions in loading performance (+110 ms and +134 ms LCP respectively).
  • Pinterest (–2): the steepest decline with +877 ms on LCP, +74 ms on INP, and a degraded CLS — a triple hit to experience and usability
Website Ranking Ranking M-1 Score LCP (in ms) INP (in ms) CLS
Wikipedia 1 (0) 1 100 1073 105 0
Indeed 2 (0) 2 99 1253 111 0
Gov 3 (0) 3 99 715 127 0
The guardian 4 (0) 4 99 949 121 0,05
BBC 5 (0) 5 99 954 147 0
Ikea 6 (0) 6 98 1202 155 0,02
Telegraph 7 (1) 8 97 1669 143 0,07
National Lottery 8 (3) 11 97 1169 145 0,09
Mumsnet 9 (-2) 7 97 1753 189 0,02
Etsy 10 (3) 13 96 2144 144 0
Asos 11 (1) 12 96 1701 205 0,01
Santander 12 (-2) 10 96 1875 173 0,01
Ebay 13 (5) 18 96 1453 221 0,01
News.sky 14 (3) 17 96 1457 120 0,11
Office 15 (-6) 9 96 2162 130 0
The Sun 16 (-2) 14 96 1661 212 0,01
Temu 17 (-2) 15 96 1754 194 0
Independent 18 (1) 19 95 1374 228 0,06
Amazon 19 (-3) 16 95 1510 165 0,11
Zoopla 20 (2) 22 95 1646 244 0,04
Daily Mail 21 (-1) 20 93 1685 281 0,02
Ny Times 22 (1) 23 93 2305 226 0,05
Spotify 23 (1) 24 93 2336 222 0,04
Mark and Spencer 24 (-3) 21 92 1742 228 0,11
Express 25 (0) 25 90 1869 343 0,03
Diy 26 (3) 29 89 2101 316 0,05
Argos 27 (0) 27 89 1515 376 0,02
Paypal 28 (3) 31 89 2853 165 0,01
Gumtree 29 (-1) 28 89 1650 386 0,05
Right Move 30 (0) 30 87 1577 347 0,11
Bt 31 (2) 33 87 2238 228 0,15
Disney Plus 32 (-6) 26 87 3113 190 0,08
Screwfix 33 (-1) 32 86 2371 338 0,03
Ancestry 34 (1) 35 82 2841 174 0,19
Tesco 35 (-1) 34 80 2596 411 0,06
Next 36 (2) 38 80 2149 593 0,04
Booking 37 (-1) 36 79 2625 447 0
Microsoft 38 (-1) 37 78 2927 449 0
Asda 39 (0) 39 74 1904 371 0,3
Snapchat 40 (4) 44 73 3339 429 0,01
Royal Mail 41 (-1) 40 70 2363 186 0,88
Vinted 42 (3) 45 70 2546 288 0,4
Sky scanner 43 (-1) 42 70 2915 423 0,22
Just-eat 44 (-3) 41 69 1857 283 0,73
Sky 45 (-2) 43 63 3647 280 0,31
Bet 365 46 (1) 47 58 3340 387 0,46
Netflix 47 (1) 48 54 3909 1087 0
Pinterest 48 (-2) 46 52 4623 568 0,09
Sainsburys 49 (1) 50 43 4575 448 0,34
Boots 50 (-1) 49 36 4564 560 0,54

📊 Averages for the sector:


🧪 Core Web Vitals Overview – Top 50 (June 2025)

  • ✅ 26% of sites pass all three Core Web Vitals thresholds — a slight but significant minority.
  • ⏱ 70% meet the LCP (loading) benchmark, showing decent first impression performance.
  • 🧭 Only 38% pass the INP (interactivity) benchmark — a major opportunity for improvement.
  • 🔒 70% deliver a stable layout with good CLS scores, reducing visual disruptions during navigation.

Here are the e-commerce rankings, for which web performance is a business and SEO issue.


E-commerce : Webperf ranking of the top 30 most visited sites in the United Kingdom

In a sector where every millisecond can impact conversion, e-commerce brands are under constant pressure to deliver fast, smooth, and stable browsing experiences. From product discovery to checkout, performance is a critical driver of revenue.


🏆 TOP 3 LEADERS

  1. 🥇 IKEA (+1) takes the lead this month thanks to a 117 ms drop in LCP.
  2. 🥈 Aldi (–1) slips to second position following a 69 ms increase in LCP — a reminder that even minor slowdowns can impact perception.
  3. 🥉John Lewis (0) holds steady in third
 

🌟 NOTABLE IMPROVEMENTS

Several brands made visible strides to enhance user experience:

  • eBay (+3) climbs despite no notable Core Web Vitals improvements, showing that past gains still hold weight.
  • H&M (+5) made dual progress: improving interactivity (–19 ms INP) and significantly boosting page stability, with a –0.05 drop in CLS, now comfortably within green.
  • Shein (+3) also improved INP by –41 ms, helping users interact more quickly with its dynamic catalog.

 

📉 CHALLENGES IN THE RANKINGS

  • Temu (–2) shows small degradations in both LCP and INP, potentially impacting the perceived responsiveness of its pages.
  • PrettyLittleThing (–2) records mild setbacks across the board, reinforcing the need for continuous monitoring.
  • Screwfix (–2) sees a +23 ms rise in LCP, making its site marginally slower to load above-the-fold content.
  • Apple (–2) experiences a +156 ms spike in LCP, which could impact perception during high-intent visits.
  • Halfords (–2) also slows down, with +122 ms added to its LCP score — potentially costly during peak traffic.

These regressions remind e-commerce sites of the need for constant vigilance and optimization. To remain competitive, these sites must regularly assess and improve their web performance to avoid losing ground to competitors.


Website Ranking Ranking M-1 Score LCP (in ms) INP (in ms) CLS
Ikea 1 (1) 2 98 1202 155 0,02
Aldi 2 (-1) 1 98 1734 138 0,02
John Lewis 3 (0) 3 98 1366 181 0
Asos 4 (0) 4 96 1701 205 0,01
Ebay 5 (3) 8 96 1453 221 0,01
Very 6 (0) 6 96 1782 208 0,02
Temu 7 (-2) 5 96 1754 194 0
Amazon 8 (-1) 7 95 1510 165 0,11
Sports Direct 9 (1) 10 93 1357 293 0
Marks And Spencer 10 (-1) 9 92 1742 228 0,11
River Island 11 (1) 12 91 1409 341 0
Wickes 12 (-1) 11 91 2152 279 0,08
DIY 13 (1) 14 89 2101 316 0,05
H&M 14 (5) 19 89 1417 349 0,08
Pretty Little Thing 15 (-2) 13 89 2142 359 0,03
Matalan 16 (-1) 15 87 1520 430 0
JD Sports 17 (0) 17 87 1708 220 0,19
Screwfix 18 (-2) 16 86 2371 338 0,03
Nike 19 (1) 20 84 2930 267 0,09
Apple 20 (-2) 18 83 3364 189 0,04
Shein 21 (3) 24 81 2571 388 0,09
Tesco 22 (0) 22 80 2596 411 0,06
Halfords 23 (-2) 21 80 2576 296 0,17
Next 24 (-1) 23 80 2149 593 0,04
Vinted 25 (0) 25 70 2546 288 0,4
Samsung 26 (0) 26 57 3831 385 0,21
EE 27 (0) 27 48 4720 239 0,38
Uber eats 28 (0) 28 44 4683 1185 0,08
Boots 29 (0) 29 36 4564 560 0,54
Iceland 30 (0) 30 21 5401 877 1
 
📊 Averages for the sector:

 

🧪 Core Web Vitals Overview – E-commerce (June 2025)

  • 13% of sites pass all three Core Web Vitals thresholds.
  • ⏱ 68% have a green LCP, meaning the main content loads quickly for most users.
  • 🧭 Only 19% meet the INP benchmark — interactivity is clearly the weak point across the sector.
  • 🔒 68% show stable layouts (CLS), minimizing visual shifts during navigation and transactions

Media : Webperf ranking of the top 20 most visited sites in the United Kingdom

Whether on breaking headlines or investigative features, page speed impacts how quickly users access information, how smoothly they navigate, and how long they stay.

The media landscape remains competitive, with slight shifts reflecting continuous performance efforts. Here’s what stood out this month:

 

🏆 TOP 3 LEADERS

  1. 🥇 The Guardian (0) holds its crown with a highly responsive INP of 121 ms.
  2. 🥈BBC (0) remains a close second at 147 ms, continuing to offer strong stability and fast loading.
  3. 🥉Sky Sports (0) rounds out the top three with a sharp INP of 143 ms.
 
🌟 NOTABLE IMPROVEMENTS

Some media sites made quiet gains this month:

  • The Scottish Sun (+3) improves its position, although no specific Core Web Vitals improvements were observed.
  • Hello Magazine (+2) reduced LCP by 42 ms, enhancing the time it takes for key content to appear.
  • Racing Post (+2) posted slight INP optimizations, improving interactivity for users browsing odds and racing schedules.
  • Express (+2) recorded marginal improvements in LCP, making article pages snappier to load.

📉 CHALLENGES IN THE RANKINGS

Others face performance slowdowns that could impact user experience:

  • Financial Times (–3) suffered a +100 ms rise in LCP.
  • London South East (–2) showed slight regressions across all metrics.
  • Wales Online (–4) experienced a +209 ms increase in LCP and +58 ms in INP
  • Daily Star (–2) recorded declines across the board: +231 ms LCP, +16 ms INP, and a small +0.02 rise in CLS.
  • GB News (–2), after last month’s progress, couldn’t sustain its gains: +124 ms LCP and +41 ms INP this round.

Website Ranking Ranking M-1 Score LCP (in ms) INP (in ms) CLS
The Guardian 1 (0) 1 99 949 121 0,05
BBC 2 (0) 2 99 954 147 0
Sky Sports 3 (0) 3 98 1788 143 0,03
Telegraph 4 (1) 5 97 1669 143 0,07
Metro 5 (-1) 4 97 1569 186 0
Yahoo 6 (1) 7 96 1735 196 0,05
The Sun 7 (-1) 6 96 1661 212 0,01
The times 8 (0) 8 96 2163 163 0
The Scottish Sun 9 (3) 12 95 1595 231 0,01
Independent 10 (0) 10 95 1374 228 0,06
Hello magazine 11 (2) 13 95 1653 186 0,09
Financial Times 12 (-3) 9 95 2198 101 0,08
London South East 13 (-2) 11 94 1847 199 0,09
Standard 14 (1) 15 93 1379 284 0,05
Daily Mail 15 (-1) 14 93 1685 281 0,02
Racing Post 16 (2) 18 93 2077 218 0,09
Ny times 17 (-1) 16 93 2305 226 0,05
Birmingham Live 18 (1) 19 91 2108 295 0,06
Daily Record 19 (1) 20 90 2150 292 0,06
Express 20 (2) 22 90 1869 343 0,03
Wales Online 21 (-4) 17 90 2199 293 0,07
Good Read 22 (1) 23 89 2482 159 0,12
Daily Star 23 (-2) 21 88 2353 305 0,07
Sporting Life 24 (1) 25 87 2882 276 0,03
Echo 25 (1) 26 86 2529 313 0,06
Gb News 26 (-2) 24 85 2649 353 0,07
Manchester evening News 27 (0) 27 85 2454 338 0,08
News Now 28 (0) 28 84 2334 453 0
Premier League 29 (0) 29 77 3633 174 0,13
Live Score 30 (0) 30 47 4987 491 0,24

📊 Averages for the sector:


Core Web Vitals Overview – Media (June 2025)

  • ❌ Only 33% of media sites analyzed achieved all three Core Web Vitals in the green, showing that even in mature sectors, continuous optimization is essential to meet the demands of today’s users.
  • ⏱ 83% of media sites have a green LCP, meaning key content is generally rendered quickly.
  • 🧭 The real challenge remains Interaction to Next Paint (INP), where only 40% of media sites are in the green. This means that while pages load quickly and remain visually stable, user interactions like clicks and taps are often delayed — a critical issue for high-engagement platforms.
  • 🔒 90% have a stable layout with a green CLS, a strong point for the category.

Finally, here are the top travel websites.


Travel : Webperf ranking of the top 20 most visited sites in the United Kingdom


Planning a trip should be smooth and fast — not slowed down by frustrating delays. But in May 2025, the travel sector continues to face major challenges in delivering high-performance web experiences. When users are comparing offers, selecting dates, or completing bookings, page responsiveness and stability are make-or-break factors.


🏆 TOP 3 LEADERS

  • 🥇Love Holidays (0) stays ahead with a solid INP of 163 ms.
  • 🥈Transport For London (0) remains in second place, leading in interactivity with a best-in-class INP of 121 ms.
  • 🥉Pitchup (0) secures third, though with a slightly higher INP of 211 ms.


🌟 NOTABLE IMPROVEMENTS

This month, several players have clearly worked across all three Core Web Vitals, showing promising improvements — though maintaining this level of performance remains the biggest challenge.

  • Parkdean Resorts (+4) cut LCP by 471 ms, making key content visible faster.
  • Po Cruises (+3) showed solid work across the board: –196 ms on LCP, –24 ms on INP, and –0.09 on CLS, reducing layout shifts.
  • National Rail (+3) also improved on all fronts: –196 ms on LCP, –15 ms INP, and –0.06 CLS.
  • The Trainline (+4) managed to lift all metrics, including a –114 ms LCP drop, –34 ms on INP, and –0.19 CLS, moving from red to orange — a meaningful improvement in page stability.


📉 CHALLENGES IN THE RANKINGS

However, several well-known names saw regressions, particularly on LCP, which affects how quickly users can see important information:

  • Rome 2 Rio (–2) saw a significant +261 ms increase in LCP.
  • Airbnb (–2) recorded minor slowdowns in both LCP and INP.
  • Jet2 (–2) added +142 ms to LCP.
  • Hotels.com (–2) also experienced a +95 ms rise in LCP.
  • EasyJet (–2) showed minor degradations across all three metrics, indicating a broader performance dip.

Website Ranking Ranking M-1 Score LCP (in ms) INP (in ms) CLS
Love Holidays 1 (0) 1 98 1476 163 0
Transport For London 2 (0) 2 96 1582 121 0,1
Pitchup 3 (0) 3 96 1421 211 0,06
Trip Advisor 4 (0) 4 92 1898 196 0,12
Trip 5 (3) 8 91 2183 216 0,1
Skyes Cottages 6 (-1) 5 91 2550 196 0,01
Ryanair 7 (0) 7 89 2829 188 0,09
Rome 2 Rio 8 (-2) 6 88 2997 210 0,03
Vrbo 9 (1) 10 87 2707 270 0,07
Agoda 10 (-1) 9 86 1152 456 0,07
Parkdean Resorts 11 (4) 15 83 2657 318 0,13
National Express 12 (0) 12 81 1796 321 0,21
Cottages 13 (-2) 11 80 2025 611 0,06
Booking 14 (-1) 13 79 2625 447 0
Uber 15 (-1) 14 78 2486 573 0
Po Cruises 16 (3) 19 77 2447 224 0,32
National Rail 17 (3) 20 74 1791 423 0,27
Airbnb 18 (-2) 16 73 3462 355 0,11
Jet 2 19 (-2) 17 71 2725 681 0,08
Hotels.com 20 (-2) 18 71 3234 513 0,1
Skyscanner 21 (0) 21 70 2915 423 0,22
The Trainline 22 (4) 26 69 3208 527 0,13
Eurostar 23 (0) 23 63 2490 697 0,26
Easy Jet 24 (-2) 22 61 2609 525 0,38
TUI 25 (-1) 24 58 3320 331 0,52
Premier Inn 26 (-1) 25 56 4234 419 0,22

📊 Averages for the sector:


🧪 Core Web Vitals Overview – Travel (June 2025)

  • ❌ Only 7% of travel sites pass all three Core Web Vitals thresholds — the lowest of any category.
  • ⏱ 44% have a green LCP, meaning ey content still takes too long to load — a major blocker for users comparing destinations or searching for the best deal.
  • 🧭 Just 18.5% meet Google’s INP threshold — interactivity is the biggest pain point. That means most users experience delays when interacting — whether selecting dates, opening dropdowns, or submitting booking forms. These lags can seriously hurt both user satisfaction and conversion rates.
  • 🔒 37% have a green CLS, leaving room to improve page stability during loading



In such a competitive market, standing out through your website’s performance is essential. Fast loading times not only improve user experience but also increase conversion rates and generate more revenue. This monthly ranking is a valuable tool to measure and enhance your site’s performance, allowing you to position yourself against competitors and identify areas for improvement.


We encourage all UK e-commerce leaders to invest in optimizing their site speed and to explore how tools and services like those we offer at Fasterize can help unlock faster, smoother, and more profitable digital experiences to stay competitive.

If you’d like to understand where your site stands and identify the most impactful areas for improvement, let’s talk.

📩 Contact us for a personalised analysis and actionable next steps.

Stay tuned for the next edition to see how your competitors evolve — or how you can overtake them.

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