What determines a website's leaderboard position?

Websites are ranked best to worst based on their Core Web Vitals performance. Each website receives a score that combines the performance of three key metrics: Largest Contentful Paint (LCP), Cumulative Layout Shift (CLS), and Interaction to Next Paint (INP).

What are Core Web Vitals?

Core Web Vitals (CWV) are a set of metrics used to measure user experience on the web. Each metric measures a different aspect of user experience, focusing on initial content display, visual stability, and responsiveness.

How often are leaderboards updated?

Leaderboards are updated once per month. Aggregated performance data is collected from the Chrome User Experience Report. Technology data is sourced from the HTTP Archive.

Which UK Councils websites are included?

This leaderboard tracks 178 of the world's top uk councils websites. Sites are curated based on global notoriety within the UK Councils sector.

Speed Tools

Top Sites: Website Speed Leaderboard

World’s top websites ranked by Core Web Vitals performance.

UK Councils

March 2026

CWV Pass Rate

88.8 % 0.4pp

Median LCP

950 ms 50 ms

Median CLS

0.00

Median INP

75 ms

GOV.UK Account climbed 155 spots to 18th place, while Stirling Council dropped 110 to 122nd.
The industry median LCP is 950 ms. Armagh City Banbridge and Craigavon Borough Council has the slowest LCP at 3.90 sec.

Data source: Chrome User Experience Report (March 2026).
Rank	Website	LCP	CLS	INP
🏆 -	London Borough of Lambeth Drupal lambeth.gov.uk	500 ms	0.00	50 ms
🥈 -	Ceredigion County Council ceredigion.gov.uk	700 ms	0.00	50 ms
🥉 ⇡	City of Edinburgh Council Jadu edinburgh.gov.uk	700 ms	0.00	75 ms
4 ⇡	Kent County Council kent.gov.uk	700 ms	0.00	75 ms
5 ⇣	Causeway Coast and Glens Borough Council Craft CMS causewaycoastandglens.gov.uk	600 ms	0.00	25 ms
6	Luton Borough Council luton.gov.uk	600 ms	0.00	50 ms
7 ⇡	City of Bradford Metropolitan District Council Microsoft ASP.NET bradford.gov.uk	700 ms	0.00	50 ms
8 ⇣	Bridgend County Borough Council bridgend.gov.uk	600 ms	0.00	75 ms
9 ⇣	Westmorland and Furness Council Drupal westmorlandandfurness.gov.uk	900 ms	0.00	50 ms
10 -	Crown Prosecution Service Drupal cps.gov.uk	1.00 sec	0.00	75 ms
11 ⇣	Buckinghamshire Council Wagtail buckinghamshire.gov.uk	700 ms	0.00	75 ms
12 ⇣	Highland Council Jadu highland.gov.uk	700 ms	0.00	50 ms
13 ⇡	Midlothian Council Jadu midlothian.gov.uk	800 ms	0.00	50 ms
14 ⇣	London Borough of Hounslow Jadu hounslow.gov.uk	600 ms	0.00	50 ms
15 ⇡	East Sussex County Council eastsussex.gov.uk	500 ms	0.00	125 ms
16 ⇡	Sandwell Metropolitan Borough Council Jadu sandwell.gov.uk	800 ms	0.00	75 ms
17 ⇣	Scottish Borders Council Jadu scotborders.gov.uk	700 ms	0.00	50 ms
18 ⇡	GOV.UK Account account.gov.uk	800 ms	0.00	50 ms
19 ⇡	Shetland Islands Council Jadu shetland.gov.uk	1.20 sec	0.00	50 ms
20 ⇡	Rotherham Metropolitan Borough Council Jadu rotherham.gov.uk	1.00 sec	0.00	50 ms
21 ⇡	Lincolnshire County Council Jadu lincolnshire.gov.uk	900 ms	0.00	75 ms
22 ⇡	Aberdeenshire Council aberdeenshire.gov.uk	800 ms	0.05	50 ms
23 ⇣	South Lanarkshire Council Jadu southlanarkshire.gov.uk	800 ms	0.00	75 ms
24 ⇡	East Ayrshire Council Contensis east-ayrshire.gov.uk	900 ms	0.00	100 ms
25 ⇣	Dudley Metropolitan Borough Council Umbraco dudley.gov.uk	900 ms	0.00	75 ms
26 ⇣	Brighton and Hove City Council Drupal brighton-hove.gov.uk	700 ms	0.00	75 ms
27 ⇣	Sheffield City Council Drupal sheffield.gov.uk	800 ms	0.00	75 ms
28 ⇣	National Crime Agency Joomla nationalcrimeagency.gov.uk	1.20 sec	0.00	75 ms
29 ⇡	Clackmannanshire Council clacks.gov.uk	600 ms	0.00	50 ms
30 ⇣	Isle of Anglesey County Council Contensis anglesey.gov.uk	1.20 sec	0.00	50 ms
31 ⇡	Conwy County Borough Council Contensis conwy.gov.uk	700 ms	0.00	50 ms
32 ⇣	Nottinghamshire County Council nottinghamshire.gov.uk	800 ms	0.00	75 ms
33 ⇣	Flintshire County Council flintshire.gov.uk	700 ms	0.00	75 ms
34 ⇡	Warwickshire County Council Jadu warwickshire.gov.uk	800 ms	0.00	75 ms
35 ⇡	Thurrock Council Drupal thurrock.gov.uk	1.10 sec	0.00	50 ms
36 ⇣	Salford City Council salford.gov.uk	700 ms	0.00	50 ms
37 ⇡	Rhondda Cynon Taf County Borough Council Contensis rctcbc.gov.uk	1.00 sec	0.00	75 ms
38 ⇣	Wrexham County Borough Council Drupal wrexham.gov.uk	900 ms	0.00	75 ms
39 -	Bury Council React bury.gov.uk	700 ms	0.00	100 ms
40 ⇣	Small Business Commissioner WordPress smallbusinesscommissioner.gov.uk	1.20 sec	0.00	50 ms
41 ⇣	Merthyr Tydfil County Borough Council merthyr.gov.uk	1.10 sec	0.00	100 ms
42 ⇡	Liverpool City Council Microsoft ASP.NET liverpool.gov.uk	700 ms	0.00	75 ms
43 ⇣	Glasgow City Council glasgow.gov.uk	1.10 sec	0.00	75 ms
44 ⇣	West Sussex County Council Microsoft ASP.NET westsussex.gov.uk	700 ms	0.00	75 ms
45 ⇣	Royal Borough of Greenwich Drupal royalgreenwich.gov.uk	700 ms	0.00	50 ms
46 -	Oxfordshire County Council Drupal oxfordshire.gov.uk	800 ms	0.00	100 ms
47 ⇣	Coventry City Council Jadu coventry.gov.uk	700 ms	0.00	75 ms
48 ⇡	Falkirk Council Microsoft ASP.NET falkirk.gov.uk	700 ms	0.00	75 ms
49 ⇡	GOV.UK Ruby on Rails gov.uk	600 ms	0.00	75 ms
50 ⇡	East Dunbartonshire Council Umbraco eastdunbarton.gov.uk	1.20 sec	0.00	75 ms
51 ⇣	Calderdale Council calderdale.gov.uk	900 ms	0.00	50 ms
52 ⇡	North Ayrshire Council React north-ayrshire.gov.uk	900 ms	0.00	75 ms
53 ⇣	Wirral Council Drupal wirral.gov.uk	700 ms	0.00	75 ms
54 ⇡	Dundee City Council Drupal dundeecity.gov.uk	1.20 sec	0.00	75 ms
55 ⇡	Blaenau Gwent County Borough Council Microsoft ASP.NET blaenau-gwent.gov.uk	1.10 sec	0.00	50 ms
56 ⇡	Solihull Metropolitan Borough Council Drupal solihull.gov.uk	700 ms	0.00	50 ms
57 ⇣	Derbyshire County Council Contensis derbyshire.gov.uk	900 ms	0.00	100 ms
58 ⇣	London Borough of Bromley Jadu bromley.gov.uk	1.10 sec	0.00	75 ms
59 ⇡	Portsmouth City Council WordPress portsmouth.gov.uk	900 ms	0.00	125 ms
60 ⇣	Rochdale Borough Council Jadu rochdale.gov.uk	900 ms	0.00	125 ms
61 ⇣	Slough Borough Council Jadu slough.gov.uk	600 ms	0.05	75 ms
62 ⇡	London Borough of Tower Hamlets Contensis towerhamlets.gov.uk	700 ms	0.00	75 ms
63 ⇡	Tameside Metropolitan Borough Council tameside.gov.uk	500 ms	0.00	50 ms
64 ⇣	Scottish Courts and Tribunals Service Microsoft ASP.NET scotcourts.gov.uk	700 ms	0.00	75 ms
65 -	Swindon Borough Council Jadu swindon.gov.uk	900 ms	0.00	50 ms
66 ⇡	Antrim and Newtownabbey Borough Council Kentico CMS antrimandnewtownabbey.gov.uk	1.00 sec	0.00	100 ms
67 ⇡	Telford and Wrekin Council telford.gov.uk	1.20 sec	0.00	50 ms
68 ⇣	Perth and Kinross Council pkc.gov.uk	1.10 sec	0.00	75 ms
69 ⇣	London Borough of Islington Microsoft ASP.NET islington.gov.uk	700 ms	0.00	75 ms
70 ⇡	Denbighshire County Council Contensis denbighshire.gov.uk	700 ms	0.00	75 ms
71 ⇣	BCP Council React bcpcouncil.gov.uk	900 ms	0.00	75 ms
72 ⇡	London Borough of Ealing Jadu ealing.gov.uk	1.00 sec	0.00	75 ms
73 ⇡	Bristol City Council Joomla bristol.gov.uk	1.50 sec	0.00	75 ms
74 ⇣	Devon County Council WordPress devon.gov.uk	1.10 sec	0.00	100 ms
75 ⇡	London Borough of Bexley Drupal bexley.gov.uk	800 ms	0.00	75 ms
76 ⇡	Oldham Council Jadu oldham.gov.uk	800 ms	0.00	50 ms
77 ⇣	London Borough of Lewisham Sitecore lewisham.gov.uk	1.10 sec	0.00	50 ms
78 -	Blackburn with Darwen Borough Council blackburn.gov.uk	1.00 sec	0.00	75 ms
79 ⇣	Durham County Council durham.gov.uk	1.40 sec	0.00	75 ms
80 ⇣	Caerphilly County Borough Council caerphilly.gov.uk	1.40 sec	0.00	50 ms
81 ⇣	Belfast City Council belfastcity.gov.uk	1.10 sec	0.00	100 ms
82 ⇣	Cumberland Council Drupal cumberland.gov.uk	1.10 sec	0.00	75 ms
83 ⇣	Trafford Council Drupal trafford.gov.uk	1.40 sec	0.00	75 ms
84 ⇡	Agri-Food and Biosciences Institute Drupal afbini.gov.uk	900 ms	0.00	50 ms
85 ⇣	East Renfrewshire Council eastrenfrewshire.gov.uk	1.60 sec	0.00	75 ms
86 ⇣	Derby City Council Microsoft ASP.NET derby.gov.uk	700 ms	0.00	50 ms
87 ⇣	Kirklees Council Microsoft ASP.NET kirklees.gov.uk	1.00 sec	0.00	75 ms
88 ⇣	North Yorkshire Council Drupal northyorks.gov.uk	700 ms	0.00	75 ms
89 ⇡	City and County of Swansea swansea.gov.uk	1.70 sec	0.00	50 ms
90 ⇡	Greater London Authority Drupal london.gov.uk	1.40 sec	0.00	75 ms
91 ⇣	London Borough of Brent Sitecore brent.gov.uk	800 ms	0.00	100 ms
92 ⇣	Worcestershire County Council Drupal worcestershire.gov.uk	1.20 sec	0.00	75 ms
93 ⇣	Peterborough City Council React peterborough.gov.uk	1.00 sec	0.00	75 ms
94 ⇣	Royal Borough of Kingston upon Thames Drupal kingston.gov.uk	1.00 sec	0.00	100 ms
95 ⇡	Wakefield Council Microsoft ASP.NET wakefield.gov.uk	900 ms	0.00	100 ms
96 ⇣	West Dunbartonshire Council Angular west-dunbarton.gov.uk	1.30 sec	0.00	75 ms
97 ⇡	Stockport Metropolitan Borough Council Contentful stockport.gov.uk	900 ms	0.00	50 ms
98 -	Lancashire County Council Umbraco lancashire.gov.uk	1.10 sec	0.00	50 ms
99 ⇣	Argyll and Bute Council Drupal argyll-bute.gov.uk	1.60 sec	0.00	50 ms
100 ⇡	London Borough of Hammersmith and Fulham Drupal lbhf.gov.uk	800 ms	0.00	75 ms
101 ⇡	London Borough of Southwark Drupal southwark.gov.uk	1.40 sec	0.00	75 ms
102 ⇣	Cambridgeshire County Council React cambridgeshire.gov.uk	1.30 sec	0.00	75 ms
103 ⇣	Ofgem Drupal ofgem.gov.uk	900 ms	0.05	50 ms
104 ⇣	Surrey County Council Squiz Matrix surreycc.gov.uk	1.00 sec	0.00	75 ms
105 ⇡	Wigan Council Contensis wigan.gov.uk	1.00 sec	0.00	75 ms
106 ⇡	Renfrewshire Council Drupal renfrewshire.gov.uk	1.50 sec	0.00	100 ms
107 ⇣	West Lothian Council westlothian.gov.uk	1.50 sec	0.00	75 ms
108 ⇣	City of Wolverhampton Council Drupal wolverhampton.gov.uk	1.00 sec	0.00	75 ms
109 ⇣	Bath and North East Somerset Council Drupal bathnes.gov.uk	900 ms	0.00	75 ms
110 ⇣	Leeds City Council Drupal leeds.gov.uk	800 ms	0.00	100 ms
111 ⇡	National Archives WordPress nationalarchives.gov.uk	1.30 sec	0.00	50 ms
112 ⇡	Staffordshire County Council Drupal staffordshire.gov.uk	700 ms	0.00	75 ms
113	London Borough of Hackney hackney.gov.uk	700 ms	0.00	50 ms
114 ⇡	Warrington Borough Council Drupal warrington.gov.uk	1.10 sec	0.05	75 ms
115 ⇣	Stoke-on-Trent City Council Jadu stoke.gov.uk	1.20 sec	0.00	75 ms
116 ⇣	Nottingham City Council Microsoft ASP.NET nottinghamcity.gov.uk	1.40 sec	0.00	75 ms
117 ⇡	Westminster City Council Drupal westminster.gov.uk	700 ms	0.05	75 ms
118 ⇣	Plymouth City Council Drupal plymouth.gov.uk	900 ms	0.00	100 ms
119 ⇣	North Lanarkshire Council Drupal northlanarkshire.gov.uk	1.20 sec	0.00	100 ms
120 ⇣	London Borough of Haringey Drupal haringey.gov.uk	900 ms	0.00	75 ms
121 ⇣	Bolton Council Jadu bolton.gov.uk	700 ms	0.00	75 ms
122 ⇣	Stirling Council stirling.gov.uk	800 ms	0.00	75 ms
123 ⇣	Cornwall Council cornwall.gov.uk	900 ms	0.00	75 ms
124 ⇡	UK Export Finance WordPress ukexportfinance.gov.uk	1.60 sec	0.00	125 ms
125 -	Vale of Glamorgan Council Contensis valeofglamorgan.gov.uk	700 ms	0.00	75 ms
126 ⇣	Essex County Council Drupal essex.gov.uk	700 ms	0.00	75 ms
127 ⇣	London Borough of Redbridge redbridge.gov.uk	600 ms	0.00	50 ms
128 ⇡	Hertfordshire County Council Contensis hertfordshire.gov.uk	1.00 sec	0.00	100 ms
129 ⇡	Orkney Islands Council orkney.gov.uk	1.20 sec	0.00	100 ms
130 ⇣	London Borough of Barking and Dagenham lbbd.gov.uk	700 ms	0.00	75 ms
131 ⇣	East Lothian Council Jadu eastlothian.gov.uk	2.00 sec	0.00	75 ms
132 ⇣	Pembrokeshire County Council pembrokeshire.gov.uk	1.40 sec	0.00	75 ms
133 ⇣	Met Office Bloomreach metoffice.gov.uk	1.00 sec	0.00	125 ms
134 ⇣	London Borough of Waltham Forest Drupal walthamforest.gov.uk	1.00 sec	0.00	75 ms
135 ⇣	Ards and North Down Borough Council ardsandnorthdown.gov.uk	1.00 sec	0.05	75 ms
136 ⇡	Barnsley Metropolitan Borough Council Microsoft ASP.NET barnsley.gov.uk	1.10 sec	0.00	75 ms
137 ⇡	North Northamptonshire Council React northnorthants.gov.uk	800 ms	0.00	75 ms
138 ⇣	City of York Council Jadu york.gov.uk	800 ms	0.00	75 ms
139 ⇣	South Tyneside Council southtyneside.gov.uk	1.60 sec	0.00	75 ms
140 ⇣	Manchester City Council Squiz Matrix manchester.gov.uk	1.40 sec	0.00	50 ms
141 ⇣	City of London Corporation React cityoflondon.gov.uk	1.80 sec	0.00	75 ms
142 ⇣	Walsall Council Drupal go.walsall.gov.uk	1.50 sec	0.05	100 ms
143 ⇣	Suffolk County Council React suffolk.gov.uk	2.00 sec	0.00	100 ms
144 ⇡	Monmouthshire County Council WordPress monmouthshire.gov.uk	1.50 sec	0.00	75 ms
145 ⇡	Somerset Council WordPress somerset.gov.uk	1.40 sec	0.00	50 ms
146 ⇡	Knowsley Council Drupal knowsley.gov.uk	1.40 sec	0.00	75 ms
147 ⇣	NI Direct Drupal nidirect.gov.uk	1.00 sec	0.00	100 ms
148 ⇣	Milton Keynes City Council Drupal milton-keynes.gov.uk	1.00 sec	0.05	100 ms
149 ⇡	Lisburn and Castlereagh City Council lisburncastlereagh.gov.uk	2.00 sec	0.00	100 ms
150 ⇣	Sefton Council Microsoft ASP.NET sefton.gov.uk	1.20 sec	0.05	75 ms
151 ⇣	West Northamptonshire Council React westnorthants.gov.uk	800 ms	0.10	75 ms
152 ⇣	Health and Safety Executive hse.gov.uk	700 ms	0.15	50 ms
153 ⇣	London Borough of Croydon Drupal croydon.gov.uk	700 ms	0.10	50 ms
154 ⇡	London Borough of Harrow Jadu harrow.gov.uk	1.00 sec	0.05	100 ms
155 ⇣	Birmingham City Council Jadu birmingham.gov.uk	2.70 sec	0.00	75 ms
156 ⇣	London Borough of Barnet Drupal barnet.gov.uk	1.30 sec	0.15	75 ms
157 ⇣	London Borough of Sutton sutton.gov.uk	1.60 sec	0.00	100 ms
158 ⇣	London Borough of Newham Jadu newham.gov.uk	600 ms	0.10	75 ms
159 ⇣	Newcastle City Council newcastle.gov.uk	1.50 sec	0.10	50 ms
160 ⇣	London Borough of Merton Drupal merton.gov.uk	800 ms	0.15	50 ms
161 ⇣	Inverclyde Council Microsoft ASP.NET inverclyde.gov.uk	2.80 sec	0.00	50 ms
162 ⇣	Doncaster Council Orchard Core doncaster.gov.uk	2.50 sec	0.00	75 ms
163 ⇣	Royal Borough of Kensington and Chelsea Drupal rbkc.gov.uk	900 ms	0.10	50 ms
164 ⇣	Transport for London tfl.gov.uk	1.50 sec	0.00	100 ms
165 ⇡	Gloucestershire County Council gloucestershire.gov.uk	1.30 sec	0.05	75 ms
166 ⇣	Torfaen County Borough Council Contensis torfaen.gov.uk	1.20 sec	0.10	100 ms
167 ⇣	London Borough of Havering Jadu havering.gov.uk	800 ms	0.10	75 ms
168 ⇣	Leicestershire County Council Drupal leicestershire.gov.uk	1.30 sec	0.05	125 ms
169 ⇣	Reading Borough Council Nuxt.js reading.gov.uk	1.40 sec	0.10	75 ms
170 ⇣	Office for National Statistics ons.gov.uk	800 ms	0.25	100 ms
171 ⇣	Food Standards Agency Drupal food.gov.uk	1.60 sec	0.25	75 ms
172 ⇣	St Helens Council sthelens.gov.uk	2.40 sec	0.15	75 ms
173 ⇣	Armagh City Banbridge and Craigavon Borough Council WordPress armaghbanbridgecraigavon.gov.uk	3.90 sec	0.00	100 ms
174	Aberdeen City Council aberdeencity.gov.uk	2.30 sec	0.55	100 ms
175 ⇣	Powys County Council powys.gov.uk	900 ms	0.00	275 ms
176 ⇣	South Ayrshire Council south-ayrshire.gov.uk	1.10 sec	0.00
177	Government Commercial Agency gca.gov.uk	1.50 sec	0.00
178 ⇣	Government Property Agency WordPress gpa.gov.uk	1.10 sec	0.10

About Website Speed Leaderboard Project

We ranked the world's top websites based on Core Web Vitals, the most recognised indicators of great user experience on the web today.

Using real-world data from the Chrome User Experience Report and technology data from the HTTP Archive, these monthly leaderboards showcase the fastest websites across industries, highlighting those that deliver exceptional performance.

View more leaderboards →

Your questions answered

What determines a website's leaderboard position?: Websites are ranked best to worst based on their Core Web Vitals performance. Each website receives a score that combines the performance of three key metrics: Largest Contentful Paint (LCP), Cumulative Layout Shift (CLS), and Interaction to Next Paint (INP).
What are Core Web Vitals?: Core Web Vitals (CWV) are a set of metrics used to measure user experience on the web. Each metric measures a different aspect of user experience, focusing on initial content display, visual stability, and responsiveness. For more on CWV, read our guide.
How often are leaderboards updated?: Leaderboards are updated once per month. Aggregated performance data is collected from the Chrome User Experience Report. Technology data is sourced from the HTTP Archive.
Which UK Councils websites are included?: This leaderboard tracks 178 of the world's top uk councils websites. Sites are curated based on global notoriety within the UK Councils sector.

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CrUX Dashboard showing the Core Web Vitals assessment status, Largest Contentful Paint and Cumulative Layout Shift charts and values