Websites Powered by Complianz
581,098 websites tracked using Complianz (A/B Testing) · complianz.io
Complianz is a tool for running A/B and multivariate experiments to compare page variants. Its official site is complianz.io. PoweredBy tracks the websites that use Complianz across the public web; the tracked counts, adoption trend, and site list on this page are updated from our ongoing crawl of the a/b testing ecosystem.
Usage trend
100K
200K
300K
Oct 2021
Jan 2023
Apr 2024
Jun 2025
Sep 2026
Domains observed using Complianz in each month's HTTP Archive crawl,
Oct 2021 to Sep 2026 · peak 268,789 in Jun 2026. The tracked total above also
counts sites not re-crawled recently.
Core Web Vitals
LCP 2.3 s
INP 75 ms
CLS 0
TTFB 1300 ms
Median site among 265,985 Complianz sites with Chrome UX data, p75 values, Sep 2026.
Top countries
Spain
43,847
Germany
37,735
France
37,286
Italy
31,506
United States
21,228
United Kingdom
17,874
Netherlands
15,416
Czechia
10,566
Sites using Complianz by audience country, Chrome UX Report.
Usage by industry
| Industry | Share | Websites |
|---|---|---|
| Arts and entertainment | 5.47% | 2,256 |
| Pets and animals | 5.40% | 149 |
| Beauty and wellness | 4.84% | 1,245 |
| Home and construction | 4.79% | 2,277 |
| Sports and fitness | 4.60% | 766 |
| Non-profit and religious | 3.97% | 311 |
| Legal | 3.86% | 905 |
| Professional services | 3.74% | 1,538 |
| Travel and hospitality | 3.47% | 2,578 |
| Education | 3.36% | 1,673 |
| Industrial and manufacturing | 3.18% | 138 |
| News and media | 3.14% | 1,323 |
Share of each industry's websites with a detected stack that use Complianz; industries come from what sites declare in their own structured data.
Top sites by authority
9+
3% · 12 of 372 sites
8+
3% · 233 of 7,677 sites
7+
2% · 831 of 45,712 sites
6+
2% · 1,731 of 110,136 sites
5+
1% · 3,637 of 246,751 sites
The share of the web's most authoritative domains, by Open Page Rank tier, seen running Complianz in recent crawls. Only 372 domains worldwide score 9 or higher.
Websites using Complianz
| # | Domain | Open Page RankOPR | Est. monthly visits (US)Visits (US) | Keywords | First seen |
|---|---|---|---|---|---|
| 2901 | bereslim.nl | 5.31/10 | - | - | Apr 2024 |
| 2902 | european-big-data-value-forum.eu | 5.31/10 | 15 | 29 | Oct 2022 |
| 2903 | sea.sc.gov.br | 5.31/10 | 19 | 43 | May 2023 |
| 2904 | boerennatuur.nl | 5.31/10 | 1 | 2 | Aug 2025 |
| 2905 | hetbegintmettaal.nl | 5.31/10 | 8 | 14 | Aug 2023 |
| 2906 | barbier-mueller.ch | 5.31/10 | 66 | 23 | Feb 2025 |
| 2907 | stomavereniging.nl | 5.31/10 | - | 7 | Dec 2023 |
| 2908 | ingerop.fr | 5.31/10 | 17 | 32 | Jun 2026 |
| 2909 | nowysacz.pl | 5.31/10 | 63 | 14 | Sep 2023 |
| 2910 | gvz.ch | 5.31/10 | 2 | 5 | Oct 2023 |
| 2911 | nulk.cz | 5.31/10 | - | 5 | Mar 2022 |
| 2912 | rocksound.tv | 5.31/10 | 16,800 | 13,387 | May 2023 |
| 2913 | capi-agglo.fr | 5.31/10 | 3 | 18 | Nov 2021 |
| 2914 | turnulsfatului.ro | 5.31/10 | 46 | 135 | Jul 2026 |
| 2915 | busseltonjetty.com.au | 5.31/10 | 220 | 150 | Oct 2025 |
| 2916 | kostnidren.cz | 5.31/10 | - | - | Apr 2022 |
| 2917 | barndiabetesfonden.se | 5.31/10 | 3 | 6 | Dec 2025 |
| 2918 | gabrielperi.fr | 5.31/10 | 5 | 15 | Sep 2023 |
| 2919 | fastighetssverige.se | 5.31/10 | 7 | 26 | Feb 2026 |
| 2920 | azione.ch | 5.31/10 | 6 | 6 | Oct 2025 |
| 2921 | rfs.se | 5.31/10 | 2 | 4 | Nov 2023 |
| 2922 | kunsten92.nl | 5.31/10 | 1 | 4 | Jan 2022 |
| 2923 | policevalais.ch | 5.31/10 | 16 | 20 | May 2024 |
| 2924 | globalbridge.ch | 5.31/10 | 3 | 18 | Jun 2023 |
| 2925 | nials.edu.ng | 5.31/10 | - | 6 | Sep 2025 |
| 2926 | riaponline.it | 5.31/10 | 240 | 173 | Mar 2022 |
| 2927 | elliberlin.com | 5.30/10 | 36 | 2 | Sep 2022 |
| 2928 | ceetoronto.org | 5.30/10 | - | 1 | May 2026 |
| 2929 | frontsteps.com | 5.30/10 | 5,400 | 2,942 | May 2026 |
| 2930 | nag.com | 5.30/10 | 1,500 | 116 | Sep 2023 |
| 2931 | sibs.com | 5.30/10 | 98 | 17 | Aug 2024 |
| 2932 | charleston-hub.com | 5.30/10 | 550 | 534 | Nov 2025 |
| 2933 | coolmilk.com | 5.30/10 | 610 | 113 | Aug 2024 |
| 2934 | spectralogic.com | 5.30/10 | 3,100 | 361 | Jun 2023 |
| 2935 | dataiq.global | 5.30/10 | 320 | 197 | Jul 2024 |
| 2936 | soluti.com.br | 5.30/10 | 86 | 71 | Jul 2024 |
| 2937 | businessclimatehub.uk | 5.30/10 | 11 | 59 | Sep 2023 |
| 2938 | bfore.ai | 5.30/10 | 240 | 62 | Aug 2026 |
| 2939 | cashbankinc.com | 5.30/10 | - | - | Nov 2025 |
| 2940 | policyinpractice.co.uk | 5.30/10 | 95 | 116 | Oct 2021 |
| 2941 | expofoodtech.com | 5.30/10 | 54 | 71 | Sep 2022 |
| 2942 | respond.org.uk | 5.30/10 | 110 | 6 | Feb 2026 |
| 2943 | swecogroup.com | 5.30/10 | 360 | 284 | Nov 2021 |
| 2944 | drlisadamour.com | 5.30/10 | 700 | 930 | Sep 2023 |
| 2945 | sendesaal-bremen.de | 5.30/10 | - | 10 | Aug 2022 |
| 2946 | haltungsform.de | 5.30/10 | 65 | 74 | Nov 2022 |
| 2947 | alphakurs.de | 5.30/10 | - | 4 | Dec 2022 |
| 2948 | virtalent.com | 5.30/10 | 54 | 167 | Feb 2026 |
| 2949 | earth.ac.cr | 5.30/10 | 280 | 100 | May 2025 |
| 2950 | marqalicante.com | 5.30/10 | 250 | 111 | Feb 2025 |
| 2951 | sibanyestillwater.com | 5.30/10 | 3,000 | 1,422 | Oct 2021 |
| 2952 | fredcavazza.net | 5.30/10 | - | 11 | Nov 2022 |
| 2953 | stchristophers.org.uk | 5.30/10 | 150 | 134 | Aug 2023 |
| 2954 | matis.is | 5.30/10 | 18 | 96 | Feb 2025 |
| 2955 | lasemaineduson.org | 5.30/10 | 13 | 22 | Sep 2024 |
| 2956 | sbr.se | 5.30/10 | 40 | 8 | Jan 2026 |
| 2957 | hexcel.com | 5.30/10 | 10,500 | 3,093 | Feb 2026 |
| 2958 | laicite.be | 5.30/10 | 15 | 20 | Oct 2025 |
| 2959 | ville-isle-adam.fr | 5.30/10 | 16 | 26 | Aug 2026 |
| 2960 | oree.org | 5.30/10 | 42 | 13 | Jun 2026 |
| 2961 | europeanlandowners.org | 5.30/10 | 200 | 36 | Nov 2023 |
| 2962 | festrail.co.uk | 5.30/10 | 840 | 457 | Oct 2023 |
| 2963 | fundaciongsr.org | 5.30/10 | - | 6 | Nov 2022 |
| 2964 | healthforfuture.de | 5.30/10 | - | 1 | May 2024 |
| 2965 | cmaisonneuve.qc.ca | 5.30/10 | 200 | 194 | Feb 2024 |
| 2966 | palairlines.ca | 5.30/10 | 2,100 | 895 | Sep 2026 |
| 2967 | amit-es.org | 5.30/10 | - | 2 | Jan 2023 |
| 2968 | gabrovo.bg | 5.30/10 | 7 | 10 | Mar 2023 |
| 2969 | fhcsd.org | 5.30/10 | 31,600 | 22,065 | May 2025 |
| 2970 | fmk.sk | 5.30/10 | - | - | Mar 2026 |
| 2971 | ucm.sk | 5.30/10 | 35 | 31 | Nov 2023 |
| 2972 | panish.law | 5.30/10 | 19,800 | 3,407 | Jul 2026 |
| 2973 | october.eu | 5.30/10 | 70 | 66 | Nov 2021 |
| 2974 | ito-germany.de | 5.30/10 | - | - | Jan 2025 |
| 2975 | grandfilm.de | 5.30/10 | 13 | 26 | Jun 2024 |
| 2976 | vsl.nl | 5.30/10 | - | 7 | Jun 2026 |
| 2977 | walkway.org | 5.30/10 | 3,000 | 1,684 | Aug 2026 |
| 2978 | bestmovie.it | 5.30/10 | 6,800 | 3,063 | Jun 2023 |
| 2979 | museostorico.it | 5.30/10 | 65 | 35 | Jan 2023 |
| 2980 | medicinfo.nl | 5.30/10 | - | - | Dec 2021 |
| 2981 | grafcan.es | 5.30/10 | 89 | 383 | Dec 2023 |
| 2982 | comune.messina.it | 5.30/10 | 4 | 53 | Aug 2022 |
| 2983 | mediarodzina.pl | 5.30/10 | 17 | 39 | Oct 2024 |
| 2984 | dis-leur.fr | 5.30/10 | 7 | 69 | Nov 2021 |
| 2985 | discoverymuseum.nl | 5.30/10 | 20 | 14 | Mar 2024 |
| 2986 | frij.ch | 5.30/10 | 35 | 1 | Jul 2024 |
| 2987 | samendigitaalveilig.nl | 5.30/10 | - | 2 | Feb 2023 |
| 2988 | salezjanie.pl | 5.30/10 | - | 1 | Jan 2022 |
| 2989 | xes.cat | 5.30/10 | 5 | 2 | May 2025 |
| 2990 | eticaeconomia.it | 5.30/10 | 2 | 21 | Jan 2023 |
| 2991 | elchecf.es | 5.30/10 | 3,800 | 424 | Jul 2024 |
| 2992 | kogis.pl | 5.30/10 | 3 | 30 | Dec 2025 |
| 2993 | ddsg-blue-danube.at | 5.30/10 | 350 | 163 | Dec 2024 |
| 2994 | camillebloch.ch | 5.30/10 | 210 | 20 | Dec 2022 |
| 2995 | eccoclimate.org | 5.30/10 | 1,500 | 484 | Jun 2026 |
| 2996 | stockholmtechshow.se | 5.30/10 | 1 | 6 | Apr 2026 |
| 2997 | tandartsenhub.nl | 5.30/10 | - | - | May 2026 |
| 2998 | artsenauto.nl | 5.30/10 | 29 | 42 | Apr 2026 |
| 2999 | ethnomuseum.pl | 5.30/10 | 190 | 38 | Jan 2026 |
| 3000 | ecam.fr | 5.30/10 | 30 | 92 | May 2026 |
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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