Websites Powered by Siteimprove
10,949 websites tracked using Siteimprove (Analytics) · www.siteimprove.com
Siteimprove is a web analytics service that measures site traffic and visitor behavior. Its official site is siteimprove.com. PoweredBy tracks the websites that use Siteimprove across the public web; the tracked counts, adoption trend, and site list on this page are updated from our ongoing crawl of the analytics ecosystem.
Usage trend
5K
10K
15K
Feb 2023
Jan 2024
Dec 2024
Oct 2025
Sep 2026
Domains observed using Siteimprove in each month's HTTP Archive crawl,
Feb 2023 to Sep 2026 · peak 10,175 in Mar 2023. The tracked total above also
counts sites not re-crawled recently.
Core Web Vitals
LCP 1.5 s
INP 75 ms
CLS 0
TTFB 600 ms
Median site among 7,476 Siteimprove sites with Chrome UX data, p75 values, Sep 2026.
Top countries
United States
5,192
India
1,894
Canada
1,760
United Kingdom
1,583
Netherlands
1,154
Philippines
1,100
Australia
1,000
Germany
990
Sites using Siteimprove by audience country, Chrome UX Report.
Usage by industry
| Industry | Share | Websites |
|---|---|---|
| Government | 0.92% | 74 |
| Education | 0.40% | 197 |
| Finance and insurance | 0.36% | 59 |
| Automotive | 0.18% | 127 |
| Travel and hospitality | 0.18% | 131 |
| Arts and entertainment | 0.14% | 56 |
| Healthcare | 0.09% | 96 |
| Non-profit and religious | 0.09% | 7 |
| Real estate | 0.07% | 47 |
| Legal | 0.05% | 11 |
| Restaurants and food | 0.04% | 52 |
| Sports and fitness | 0.04% | 6 |
Share of each industry's websites with a detected stack that use Siteimprove; industries come from what sites declare in their own structured data.
Top sites by authority
9+
9% · 34 of 372 sites
8+
5% · 370 of 7,677 sites
7+
2% · 1,027 of 45,712 sites
6+
1% · 1,640 of 110,136 sites
5+
<1% · 2,329 of 246,751 sites
The share of the web's most authoritative domains, by Open Page Rank tier, seen running Siteimprove in recent crawls. Only 372 domains worldwide score 9 or higher.
Websites using Siteimprove
| # | Domain | Open Page RankOPR | Est. monthly visits (US)Visits (US) | Keywords | First seen |
|---|---|---|---|---|---|
| 1 | nih.gov | 9.44/10 | 298,300 | 34,546 | Feb 2023 |
| 2 | blogspot.com | 9.39/10 | - | - | Jan 2026 |
| 3 | harvard.edu | 9.24/10 | 472,700 | 11,444 | Feb 2023 |
| 4 | ca.gov | 9.23/10 | 1,455,600 | 26,086 | Feb 2023 |
| 5 | mailchimp.com | 9.19/10 | 424,300 | 91,330 | Feb 2023 |
| 6 | stanford.edu | 9.19/10 | 3,302,700 | 5,160 | Feb 2023 |
| 7 | admin.ch | 9.18/10 | 4,200 | 753 | Feb 2023 |
| 8 | usda.gov | 9.14/10 | 474,600 | 136,928 | Feb 2023 |
| 9 | irs.gov | 9.13/10 | 18,777,100 | 1,356,832 | Feb 2023 |
| 10 | epa.gov | 9.13/10 | 3,829,800 | 580,699 | Jul 2024 |
| 11 | myshopify.com | 9.12/10 | - | - | Feb 2023 |
| 12 | zendesk.com | 9.10/10 | 416,900 | 60,938 | Feb 2023 |
| 13 | berkeley.edu | 9.10/10 | 166,700 | 4,721 | Feb 2023 |
| 14 | cornell.edu | 9.10/10 | 140,600 | 19,190 | Feb 2023 |
| 15 | hhs.gov | 9.10/10 | 1,457,200 | 246,424 | Feb 2023 |
| 16 | canada.ca | 9.08/10 | 2,129,800 | 995,010 | Feb 2023 |
| 17 | bls.gov | 9.08/10 | 4,232,100 | 521,189 | Feb 2023 |
| 18 | apa.org | 9.07/10 | 1,040,700 | 238,370 | Mar 2024 |
| 19 | noaa.gov | 9.07/10 | 1,233,000 | 125,205 | Feb 2023 |
| 20 | ed.gov | 9.05/10 | 1,225,500 | 85,711 | Dec 2025 |
| 21 | cambridge.org | 9.04/10 | 633,100 | 518,312 | Feb 2023 |
| 22 | sec.gov | 9.04/10 | 1,435,700 | 326,094 | Apr 2024 |
| 23 | ny.gov | 9.04/10 | 675,900 | 50,004 | Feb 2023 |
| 24 | justice.gov | 9.04/10 | 4,661,300 | 693,368 | Jun 2023 |
| 25 | dhs.gov | 9.02/10 | 1,491,300 | 252,017 | Feb 2023 |
| 26 | netlify.app | 9.01/10 | 2 | 2 | Dec 2023 |
| 27 | unicef.org | 9.01/10 | 286,700 | 135,578 | Feb 2023 |
| 28 | arcgis.com | 9.01/10 | 948,500 | 244,725 | Apr 2023 |
| 29 | umich.edu | 9.01/10 | 36,500 | 1,974 | Feb 2023 |
| 30 | yale.edu | 9.01/10 | 177,900 | 5,845 | Feb 2023 |
| 31 | uk.com | 9.00/10 | 2 | 12 | Feb 2023 |
| 32 | usa.gov | 9.00/10 | 12,264,900 | 660,723 | Feb 2023 |
| 33 | dol.gov | 9.00/10 | 2,714,100 | 521,202 | Apr 2024 |
| 34 | energy.gov | 9.00/10 | 1,879,700 | 254,450 | Feb 2023 |
| 35 | va.gov | 8.99/10 | 3,906,000 | 720,623 | Feb 2023 |
| 36 | marriott.com | 8.98/10 | 12,972,400 | 790,752 | Feb 2023 |
| 37 | texas.gov | 8.98/10 | 917,200 | 38,560 | Feb 2023 |
| 38 | cmu.edu | 8.97/10 | 436,800 | 81,774 | Feb 2023 |
| 39 | wisc.edu | 8.97/10 | 461,200 | 6,382 | Feb 2023 |
| 40 | washington.edu | 8.96/10 | 663,900 | 86,604 | Feb 2023 |
| 41 | umn.edu | 8.96/10 | 78 | 51 | Feb 2023 |
| 42 | webflow.io | 8.95/10 | 79 | 1 | Aug 2023 |
| 43 | nsw.gov.au | 8.95/10 | 75,300 | 73,181 | Feb 2023 |
| 44 | ucla.edu | 8.93/10 | 410,700 | 13,782 | Feb 2023 |
| 45 | jhu.edu | 8.93/10 | 177,300 | 5,821 | Feb 2023 |
| 46 | wa.gov | 8.93/10 | 719,700 | 7,869 | Feb 2023 |
| 47 | uchicago.edu | 8.92/10 | 63,700 | 10,331 | Feb 2023 |
| 48 | cisa.gov | 8.91/10 | 445,200 | 71,313 | Aug 2025 |
| 49 | nyc.gov | 8.90/10 | 3,946,700 | 716,970 | Feb 2023 |
| 50 | usc.edu | 8.89/10 | 362,800 | 14,354 | Feb 2023 |
| 51 | samhsa.gov | 8.88/10 | 1,865,600 | 105,581 | Feb 2023 |
| 52 | fema.gov | 8.88/10 | 623,700 | 176,705 | Feb 2023 |
| 53 | osha.gov | 8.88/10 | 1,141,300 | 362,372 | Feb 2026 |
| 54 | azurewebsites.net | 8.87/10 | - | - | Feb 2023 |
| 55 | cam.ac.uk | 8.87/10 | 208,200 | 35,354 | Aug 2023 |
| 56 | site.com | 8.86/10 | - | 1 | Mar 2023 |
| 57 | purdue.edu | 8.86/10 | 746,900 | 132,133 | Feb 2023 |
| 58 | northwestern.edu | 8.86/10 | 193,400 | 45,922 | Feb 2023 |
| 59 | umd.edu | 8.85/10 | 253,200 | 15,103 | Feb 2023 |
| 60 | intuit.com | 8.84/10 | 806,400 | 28,834 | Feb 2023 |
| 61 | ufl.edu | 8.84/10 | 241,500 | 3,277 | Feb 2023 |
| 62 | ucsd.edu | 8.84/10 | 48,100 | 2,261 | Feb 2023 |
| 63 | ubc.ca | 8.84/10 | 14,500 | 2,813 | Feb 2023 |
| 64 | ucdavis.edu | 8.83/10 | 381,100 | 81,485 | Feb 2023 |
| 65 | unc.edu | 8.83/10 | 341,300 | 24,562 | Feb 2023 |
| 66 | asu.edu | 8.82/10 | 144,500 | 3,666 | Feb 2023 |
| 67 | maryland.gov | 8.82/10 | 173,200 | 7,155 | Feb 2023 |
| 68 | virginia.gov | 8.82/10 | 338,000 | 19,778 | Feb 2023 |
| 69 | mass.gov | 8.82/10 | 3,516,300 | 1,069,518 | Feb 2023 |
| 70 | colorado.gov | 8.81/10 | 81,300 | 11,605 | Feb 2023 |
| 71 | utoronto.ca | 8.81/10 | 42,800 | 10,094 | Feb 2023 |
| 72 | utah.gov | 8.80/10 | 129,700 | 22,115 | Feb 2023 |
| 73 | in.gov | 8.80/10 | 3,047,100 | 832,670 | Feb 2023 |
| 74 | mn.gov | 8.78/10 | 964,900 | 239,950 | Feb 2023 |
| 75 | michigan.gov | 8.78/10 | 3,492,800 | 959,849 | Feb 2023 |
| 76 | wpenginepowered.com | 8.77/10 | - | - | Mar 2026 |
| 77 | usembassy.gov | 8.77/10 | 109,000 | 24,898 | Jul 2025 |
| 78 | uci.edu | 8.76/10 | 94,600 | 9,503 | Feb 2023 |
| 79 | tamu.edu | 8.76/10 | 349,600 | 9,431 | Feb 2023 |
| 80 | ohio.gov | 8.76/10 | 366,800 | 33,026 | Feb 2023 |
| 81 | osu.edu | 8.76/10 | 144,000 | 12,535 | Feb 2023 |
| 82 | rutgers.edu | 8.75/10 | 146,600 | 28,567 | Aug 2026 |
| 83 | mo.gov | 8.75/10 | 135,400 | 9,347 | Feb 2023 |
| 84 | nj.gov | 8.74/10 | 2,721,600 | 870,546 | Feb 2023 |
| 85 | oregon.gov | 8.74/10 | 1,683,800 | 534,540 | Feb 2023 |
| 86 | uscis.gov | 8.74/10 | 6,313,300 | 728,638 | Feb 2023 |
| 87 | virginia.edu | 8.73/10 | 265,100 | 10,889 | Feb 2023 |
| 88 | illinois.gov | 8.73/10 | 521,900 | 65,410 | Feb 2023 |
| 89 | tn.gov | 8.72/10 | 1,732,300 | 630,039 | Mar 2026 |
| 90 | colorado.edu | 8.72/10 | 585,400 | 165,595 | Feb 2023 |
| 91 | rochester.edu | 8.71/10 | 241,200 | 60,872 | Feb 2023 |
| 92 | ucsb.edu | 8.71/10 | 73,800 | 11,445 | Feb 2023 |
| 93 | cbp.gov | 8.71/10 | 1,946,200 | 380,283 | Mar 2023 |
| 94 | arizona.edu | 8.71/10 | 127,500 | 23,873 | Feb 2023 |
| 95 | ucsf.edu | 8.70/10 | 161,700 | 52,728 | Feb 2023 |
| 96 | lbl.gov | 8.69/10 | 59,100 | 2,329 | Feb 2023 |
| 97 | pitt.edu | 8.69/10 | 62,900 | 8,520 | Feb 2023 |
| 98 | unsw.edu.au | 8.69/10 | 77,400 | 61,319 | Feb 2023 |
| 99 | gatech.edu | 8.68/10 | 128,100 | 22,038 | Aug 2025 |
| 100 | tufts.edu | 8.68/10 | 98,500 | 9,358 | Feb 2023 |
Open Page Rank is the domain's authority score (0 to 10, from the open web link graph); the list is ordered by it and covers sites seen in recent crawls. Visits and keywords are estimated US organic search figures.
Download top 10,000 as CSV (zip) →
Columns: domain, Open Page Rank, first seen, last seen, industry (from the site's own structured data, blank when none).
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