Introducing the monthly UK Web Performance ranking : the importance of fast-loading website

Sommaire

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

We are thrilled to launch our very first UK Speed Ranking. This ranking is divided into several categories: the 50 most visited sites, e-commerce sites, media sites, and travel sites. But before diving into the results, it’s crucial to remind why fast-loading websites are key to online success.

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 is Speed Crucial ?

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

Top 50 : Average of vital core web

While the top 3 positions remain unchanged (Wikipedia, Gov.uk, and BBC), there are notable movements further down the list.

 

NOTABLE PROGRESSIONS

  • Asos made a remarkable leap of 20 places to rank 18th, thanks to significant improvements in CLS, which dropped from 0.36 to 0.05. A little more effort on INP could bring all its metrics into the green.
  • Daily Mail climbed 5 positions to 24th, reducing its INP by 40 points.
  • Just-Eat also gained 5 places to rank 37th, with improvements across CLS and a reduction of 177 points in INP.
  • DIY moved up 3 places to 28th, showing improvements across all metrics, particularly a 75-point reduction in INP.
  • These actors gained 2 places each:
    • News.sky (now 13th),
    • Independent (now 14th),
    • Mumsnet (now 8th).

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.

TOP 50 : CHALLENGES IN THE RANKINGS

Not every site could maintain or improve its standing. Here are the sites that struggled this month:

  • The Telegraph dropped 6 positions to 12th, with degradations across all its metrics, including LCP, INP, and CLS.
  • Ancestry fell 5 places to 40th, impacted by slight increases in both CLS and LCP.
  • Several actors lost 3 places each, including: Ebay, The Sun, Screwfix, Paypal, Zoopla, Netflix and Express.

These declines highlight the ongoing challenge of maintaining web performance amidst evolving user expectations and technical demands.

WebsiteRankingRanking M-1ScoreLCP (in ms)INP (in ms)CLS
Wikipedia1 (0)11001138950
Gov2 (0)21007071040
BBC3 (1)4999291470
Indeed4 (-1)39914561360,04
The guardian5 (0)5988741560,03
Temu6 (1)79811861600
National Lottery7 (1)89813251610,02
Mumsnet8 (2)109815201710,01
Ikea9 (0)99813461770,02
Etsy10 (1)119819571330
Santander11 (1)129717701560,01
Telegraph12 (-6)69716741540,06
News.sky13 (2)159714941250,1
Independent14 (2)169614281940,07
Amazon15 (-1)149616571710,09
Ebay16 (-3)139615222290,01
Ny Times17 (0)179620172060,01
Asos18 (20)389519232030,05
Mark and Spencer19 (-1)189521852040,03
Spotify20 (0)209423271800,07
Gumtree21 (-2)199317522750,06
Bt22 (0)229319502230,09
Right Move23 (-2)21929983040,07
Daily Mail24 (5)299119212970,04
Disney Plus25 (0)259126701980,07
The Sun26 (-3)239116623210,01
Screwfix27 (-3)249120892820,02
Diy28 (3)319118313210,01
Paypal29 (-3)269027601730,01
Zoopla30 (-3)278915913710,01
Netflix31 (-3)288925592440,02
Argos32 (0)328815074180,03
Express33 (-3)308818913960,02
Booking34 (-1)338726203200
Next35 (-1)348520814480,03
Tesco36 (0)368025324390,06
Just-eat37 (5)427921413970,17
Snapchat38 (1)397831643220,01
Microsoft39 (-2)377837151780
Ancestry40 (-5)357829491770,23
Royal Mail41 (-1)407728882430,19
Asda42 (-1)417418573210,37
Sky scanner43 (0)436526964880,3
Vinted44 (0)446330483180,47
Pinterest45 (0)455750632970,11
Office46 (1)475442571670,4
Sky47 (-1)465441563130,36
Sainsburys48 (0)485336763710,47
Bet 36549 (0)494345964630,47
Boots50 (0)503450744630,61

 

General observations

  • 27% of the sites analyzed have a poor Cumulative Layout Shift (CLS), a metric that significantly impacts user experience. A high CLS can lead to frustration, as page elements shift unexpectedly during loading.
  • 65% of the sites do not have a green Interaction to Next Paint (INP), the metric that replaced FID as of 12 March 2024. INP measures the latency of all interactions throughout a webpage’s lifecycle. The highest value—or near-highest for pages with many interactions—is recorded as the INP of the page. A low INP indicates that the page is reliably responsive at all times.
  • Less than half of the sites have all three Core Web Vitals in the green, underscoring the difficulty of achieving and maintaining optimal web performance consistently.

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

E-commerce: average of vital core web:

NOTABLE IMPROVEMENTS :

This month’s e-commerce ranking highlights a mix of notable recoveries and challenges. While Temu retains its #1 spot, there have been significant movements further down the list..

  • Asos made a remarkable comeback, jumping 16 places to rank 7th after optimizing its CLS, which significantly improved from 0.36 to 0.05. This recovery offsets the 4-place drop it suffered last month.
  • Very climbed 2 places to rank 4th, thanks to targeted optimizations in both LCP and INP.

CHALLENGES OBSERVED :

Some e-commerce sites faced difficulties this month, losing ground in the rankings:

  • Boohoo experienced the steepest drop this month, falling 7 places to rank 19th, due to a sharp degradation in its LCP.
  • JD Sports dropped 5 places to rank 23rd, impacted by a 42-point deterioration in INP and a notable increase in LCP.
  • Screwfix fell 3 spots to rank 13th, with slight increases across all metrics.
  • The following sites each lost 2 places : Ebay, Sports Direct, Wickes et Nike.

Every millisecond of improvement or degradation can influence a site’s position in a competitive environment. In a market where user experience is directly linked to performance, maintaining optimal speed metrics is essential. 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.

WebsiteRankingRanking M-1ScoreLCP (in ms)INP (in ms)CLS
Temu1 (0)19811861600
John Lewis2 (0)29815161590
Ikea3 (0)39813461770,02
Very4 (2)69618301920,04
Amazon5 (0)59616571710,09
Ebay6 (-2)49615222290,01
Asos7 (16)239519232030,05
Mark And Spencer8 (0)89521852040,03
Sports Direct9 (-2)79414202540,06
River Island10 (1)119213293170
Wickes11 (-2)99221522850,04
Matalan12 (1)139115953330
Screwfix13 (-3)109120892820,02
DIY14 (0)149118313210,01
Pretty Little Thing15 (0)158816573850,06
Apple16 (1)178830171790,03
Halfords17 (-1)168624532530,13
Next18 (1)198520814480,03
Boohoo19 (-7)128330812400,04
Aldi20 (1)218116031540,37
Tesco21 (1)228025324390,06
Nike22 (-2)208030262680,14
JD Sports23 (-5)187919262710,27
H&M24 (0)247915322960,28
Shein25 (0)257130314900,1
Vinted26 (0)266330483180,47
Samsung27 (0)276136323510,21
Uber eats28 (0)285241599700,02
EE29 (0)294743862880,47
Boots30 (0)303450744630,61
Iceland31 (0)311759709801

In the e-commerce sector, only 16% of the sites have all metrics in the green. Additionally, INP values go as high as 980ms, which highlights the critical importance of web performance optimization, especially in this sector where every second matters for user engagement and conversions.

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

Media : Average of vital core web

This month’s media rankings saw significant shifts, with changes at the podium and notable progressions across the board.

TOP 3 LEADERS :

  • BBC retains its position at the top with all metrics in the green.
  • The Guardian holds steady at #2, maintaining its strong performance.
  • Standard climbed 1 place to rank 3rd, dethroning the Telegraph with an improvement of 22 points on its INP.

NOTABLE PROGRESSIONS:

  • Sky Sports made the most impressive leap, climbing 9 places to rank 4th, thanks to a 143-point improvement in INP and a 117-point reduction in LCP.
  • Daily Mail gained 4 spots to rank 14th, with a 40-point reduction in INP boosting its performance.
  • Echo moved up 4 places to 17th, benefiting slightly from minor optimizations and the competitive shifts in the ranking.
  • Good Read climbed 2 places to rank 20th, showing steady improvement across metrics.

CHALLENGES OBSERVED:

  • GB News fell 7 places to rank 21st, experiencing significant degradations in LCP and CLS, which negatively impacted its score.
  • News Now dropped 5 positions to 29th, with its INP increasing by 81 points, and degradations across all other metrics.
  • Financial Times slipped 4 places to rank 11th, despite maintaining stable metrics. Its loss is attributed to being outpaced by competitors with stronger improvements.
  • The Times lost 3 places to rank 19th, driven by a significant CLS degradation, impacting its overall score.
  • The following sites each lost 2 places : Telegraph, Metro and Sporting Life.
WebsiteRankingRanking M-1ScoreLCP (in ms)INP (in ms)CLS
BBC1 (0)1999291470
The Guardian2 (0)2988741560,03
Standard3 (1)49815391460,06
Sky Sports4 (9)139819001430,01
Telegraph5 (-2)39716741540,06
Yahoo6 (0)69716461820,03
Metro7 (-2)59714651980,01
Independent8 (1)99614281940,07
London South East9 (-1)89618612040,05
Ny times10 (1)119620172060,01
Financial Times11 (-4)7961943950,1
Hello magazine12 (-2)109515171880,1
Racing Post13 (-1)129418852210,09
Daily Mail14 (4)189119212970,04
The Sun15 (0)159116623210,01
The Scottish Sun16 (1)178917843670,01
Echo17 (4)218825502730,04
Express18 (1)198818913960,02
The times19 (-3)168723192660,11
Good Read20 (2)228726031630,13
Gb News21 (-7)148426282960,13
Sporting Life22 (-2)208433692270,05
Premier League23 (0)238232051950,13
Daily Star24 (1)257823483840,18
Manchester evening News25 (1)267624474680,14
Birmingham Live26 (1)277521295100,18
Wales Online27 (1)287422135300,17
Daily Record28 (1)297223555370,18
News Now29 (-5)247237064190,01
Live Score30 (0)302955586200,7

Finally, here are the top travel websites.

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

Travel : Average of vital core web

TOP 3 LEADERS

  • Love Holidays maintains its position at the top with consistent metrics in the green.
  • Trip Advisor climbed 1 place to rank 2nd, with slight improvements across all metrics, solidifying its position as a strong performer.
  • Transport for London slipped 1 spot to 3rd, as its CLS remains orange, with no significant optimizations this month.

NOTABLE PROGRESSIONS:

  • Pitchup made the biggest leap, climbing 7 places to rank 6th, thanks to a 60-point improvement in INP and a CLS that turned green.
  • Vrbo moved up 4 places to 15th, with its CLS improving from red (0.26) to green (0.10), alongside optimizations in both LCP and INP.
  • National Express gained 3 spots to rank 7th, improving both CLS and INP.
  • Agoda climbed 2 places to rank 9th, with a remarkable 637-point reduction in LCP and slight improvements in INP.

SETBACKS :

  • Park and Resorts experienced the steepest decline, falling 4 places to rank 18th. While its INP improved, its LCP and CLS deteriorated significantly, with CLS increasing from 0.10 to 0.30 in just one month.
  • The following actors each lost 3 places, struggling to maintain their performance amidst stiff competition: Trip, Ryanair, Rome 2 Rio, Booking & Skyscanner.

Airbnb returned to the ranking this month at 14th, as its data was successfully retrieved via the CrUX report.

WebsiteRankingRanking M-1ScoreLCP (in ms)INP (in ms)CLS
Love Holidays1 (0)19817361610
Trip Advisor2 (1)39519251840,07
Transport For London3 (-1)29513531210,12
Cottages4 (0)49412852590,06
Skyes Cottages5 (1)69126181740,01
Pitchup6 (7)138919403280,07
National Express7 (3)108815663070,12
Trip8 (-3)58826582200,08
Agoda9 (2)118818464080,04
Ryanair10 (-3)78727882110,11
Rome 2 Rio11 (-3)88726733110,04
Booking12 (-3)98726203200
Uber13 (-1)127930923760
Airbnb14 7631873350,12
Vrbo15 (4)197534423080,1
The Trainline16 (-1)157230115230,12
National Rail17 (-1)167121095940,2
Park and resorts18 (-4)147036553470,12
Hotels.com19 (-1)186736174860,09
Skyscanner20 (-3)176526964880,3
Easy Jet21 (-1)206031714950,27
Po Cruises22 (-1)216032122410,97
Eurostar23 (1)245826428280,29
Jet 224 (-2)225531646190,28
Premier Inn25 (-2)235542084140,24
Tui26 (-1)255335593960,51
Iceland27 (-1)261759709801

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 use tools and services like those we offer at Fasterize to stay competitive. Stay tuned for our upcoming editions to see how your site compares and what improvements can be made. For more information and to know how to improve your webperformance, visit our website

Sommaire
Demandez un diagnostic de vos temps de chargement !
Solutions