Websites Powered by Clerk.io
2,870 websites tracked using Clerk.io (Personalisation) · clerk.io
Clerk.io is a personalization engine that tailors content to each visitor. Its official site is clerk.io. PoweredBy tracks the websites that use Clerk.io across the public web; the tracked counts, adoption trend, and site list on this page are updated from our ongoing crawl of the personalisation ecosystem.
Usage trend
1K
2K
3K
Feb 2021
Jul 2022
Nov 2023
Apr 2025
Aug 2026
Domains observed using Clerk.io in each month's HTTP Archive crawl,
Feb 2021 to Aug 2026 · peak 2,132 in Apr 2023. The tracked total above also
counts sites not re-crawled recently.
Core Web Vitals
LCP 1.7 s
INP 100 ms
CLS 0
TTFB 700 ms
Median site among 2,042 Clerk.io sites with Chrome UX data, p75 values, Aug 2026.
Top countries
Italy
518
Denmark
473
Germany
453
United Kingdom
418
Netherlands
321
Norway
321
France
304
Sweden
285
Sites using Clerk.io by audience country, Chrome UX Report.
Top sites by authority
9+
<1% · 2 of 372 sites
8+
<1% · 2 of 7,677 sites
7+
<1% · 7 of 45,712 sites
6+
<1% · 12 of 110,136 sites
5+
<1% · 32 of 246,751 sites
The share of the web's most authoritative domains, by Open Page Rank tier, seen running Clerk.io in recent crawls. Only 372 domains worldwide score 9 or higher.
Websites using Clerk.io
| # | Domain | Open Page RankOPR | Est. monthly visits (US)Visits (US) | Keywords | First seen |
|---|---|---|---|---|---|
| 1 | myshopify.com | 9.12/10 | - | - | May 2022 |
| 2 | uk.com | 9.00/10 | 2 | 12 | Feb 2026 |
| 3 | billetto.se | 7.60/10 | 31 | 136 | Feb 2021 |
| 4 | billetto.dk | 7.47/10 | 48 | 186 | Feb 2021 |
| 5 | clerk.io | 7.02/10 | 150 | 183 | Oct 2022 |
| 6 | wki.it | 7.02/10 | - | - | Jul 2024 |
| 7 | 11freunde.de | 7.02/10 | 150 | 428 | May 2026 |
| 8 | macrolibrarsi.it | 6.95/10 | 100 | 710 | Sep 2024 |
| 9 | universitetsforlaget.no | 6.74/10 | 4 | 34 | Feb 2021 |
| 10 | rickowens.eu | 6.73/10 | 97,000 | 17,501 | Feb 2026 |
| 11 | billetto.co.uk | 6.69/10 | 97 | 495 | Feb 2021 |
| 12 | bscyb.ch | 6.24/10 | 330 | 312 | Nov 2022 |
| 13 | tecnomat.it | 4.69/10 | - | - | Feb 2025 |
| 14 | arcaplanet.it | 4.74/10 | 52 | 273 | Nov 2021 |
| 15 | avxperten.dk | 5.90/10 | 490 | 1,973 | Jan 2026 |
| 16 | bogensportwelt.de | 4.08/10 | - | - | Feb 2021 |
| 17 | chemist-4-u.com | 5.48/10 | 15,800 | 17,801 | Feb 2021 |
| 18 | cuoieriashop.com | 0.44/10 | - | - | Apr 2023 |
| 19 | df-sportspecialist.it | 4.22/10 | - | - | Jul 2025 |
| 20 | farmaciaguacci.it | 2.35/10 | - | - | Sep 2023 |
| 21 | farmaciaigea.com | 3.02/10 | - | - | Nov 2023 |
| 22 | farmaciasoccavo.it | 3.32/10 | - | - | Dec 2021 |
| 23 | kasanova.com | 3.60/10 | - | - | Jul 2022 |
| 24 | lesacoutlet.it | 2.41/10 | - | - | Feb 2021 |
| 25 | leteledimargi.it | 1.26/10 | - | - | Jun 2023 |
| 26 | meafarma.it | 2.54/10 | - | - | Jun 2024 |
| 27 | misterrunning.com | 1.38/10 | - | - | Sep 2024 |
| 28 | mistertennis.com | 1.59/10 | - | - | Oct 2024 |
| 29 | negozipellizzari.it | 2.43/10 | - | - | Feb 2021 |
| 30 | oliunid.it | 2.88/10 | - | - | Feb 2021 |
| 31 | paramashop.it | 1.86/10 | - | - | Jun 2023 |
| 32 | patrolbase.co.uk | 2.18/10 | - | - | Nov 2023 |
| 33 | quellogiusto.it | 2.98/10 | - | - | Sep 2023 |
| 34 | sorelleramonda.com | 1.85/10 | - | - | Nov 2023 |
| 35 | staleks.ua | 3.62/10 | - | - | Jan 2026 |
| 36 | svapoebasta.com | 2.21/10 | - | - | May 2022 |
| 37 | techniekwebshop.nl | 2.98/10 | - | - | May 2022 |
| 38 | terranovastyle.com | 4.34/10 | - | - | Apr 2022 |
| 39 | voetbalshop.nl | 5.65/10 | 170 | 1,661 | Feb 2021 |
| 40 | 24pharma.be | 3.06/10 | 16 | 59 | Feb 2021 |
| 41 | 24pharma.nl | 3.13/10 | 18 | 96 | Feb 2021 |
| 42 | 360cycles.ie | 1.48/10 | 43 | 375 | Jun 2021 |
| 43 | 3cfarma.it | 1.50/10 | - | 4 | Sep 2023 |
| 44 | 3csrl.com | 1.07/10 | 1 | 10 | Sep 2021 |
| 45 | 3dsaga.com | 0.30/10 | 25 | 65 | Mar 2026 |
| 46 | 3kwine.com | 0.91/10 | 26 | 288 | May 2026 |
| 47 | afarma.it | 1.31/10 | 1 | 38 | Aug 2023 |
| 48 | agribrianza.it | 2.11/10 | 26 | 86 | Feb 2021 |
| 49 | alasta.pl | 1.81/10 | 3 | 4 | Apr 2026 |
| 50 | aldridgesecurity.co.uk | 2.97/10 | 250 | 387 | Jun 2025 |
| 51 | alducadaosta.com | 2.32/10 | 2,100 | 1,874 | Feb 2021 |
| 52 | alfastore.de | 1.43/10 | 6 | 385 | Apr 2026 |
| 53 | alpha-shop.nl | 3.99/10 | 1 | 5 | Jul 2022 |
| 54 | alstrom.dk | 3.07/10 | 2 | 19 | Jun 2026 |
| 55 | amigovet.net | 0.82/10 | - | 7 | Mar 2025 |
| 56 | amorettiprofumi.com | 0.30/10 | - | 18 | Feb 2021 |
| 57 | amydeluxe.de | 3.18/10 | 5 | 36 | Jun 2025 |
| 58 | anchorpumps.com | 2.49/10 | 720 | 1,411 | Feb 2021 |
| 59 | antinfortunisticagrilca.com | 1.37/10 | - | 4 | Dec 2021 |
| 60 | antonymorato.com | 3.34/10 | 680 | 1,096 | Sep 2024 |
| 61 | apotera.no | 3.44/10 | 27 | 342 | Feb 2021 |
| 62 | aquasabi.com | 2.48/10 | 9,700 | 4,128 | Feb 2021 |
| 63 | aran.com | 3.52/10 | 106,700 | 19,261 | Apr 2023 |
| 64 | arcoefrecce.it | 1.97/10 | 150 | 183 | Nov 2024 |
| 65 | arkkcopenhagen.com | 1.99/10 | 800 | 309 | Dec 2021 |
| 66 | arteni.it | 1.77/10 | 18 | 103 | Sep 2022 |
| 67 | assos.com | 5.41/10 | 8,800 | 2,785 | Jan 2026 |
| 68 | astonfarma.it | 1.19/10 | 1 | 28 | Jul 2022 |
| 69 | autobatterienbilliger.de | 3.16/10 | 12 | 46 | Oct 2021 |
| 70 | autoplanet.gr | 1.48/10 | - | - | Aug 2025 |
| 71 | auxine-shop.fr | 3.40/10 | 8 | 53 | Feb 2026 |
| 72 | avxperten.no | 3.29/10 | 31 | 331 | Jan 2026 |
| 73 | babyplanetonline.co.uk | 2.55/10 | 86 | 369 | Dec 2025 |
| 74 | babywinkel.nl | 3.54/10 | 11 | 32 | Sep 2022 |
| 75 | backpackerlife.dk | 4.14/10 | 18 | 127 | Oct 2021 |
| 76 | badnor.no | 1.08/10 | - | 1 | Jun 2026 |
| 77 | badplaats.nl | 1.81/10 | 2 | 5 | Jul 2023 |
| 78 | bambuni.dk | 3.41/10 | 9 | 30 | Jul 2025 |
| 79 | bananafingers.com | 0.40/10 | 610 | 1,460 | Jul 2026 |
| 80 | bancarel.com | 0.78/10 | - | - | Jul 2022 |
| 81 | barbarossasoftair.it | 1.28/10 | 55 | 260 | Nov 2024 |
| 82 | basecampfood.com | 2.45/10 | 740 | 913 | Nov 2025 |
| 83 | basicandmore.dk | 3.21/10 | 27 | 21 | Dec 2024 |
| 84 | batteribyen.dk | 3.30/10 | 270 | 701 | Feb 2021 |
| 85 | batterionline.no | 1.55/10 | 3 | 21 | Feb 2021 |
| 86 | batterionline.se | 1.80/10 | 2 | 12 | Feb 2021 |
| 87 | bauknecht.de | 5.77/10 | 10 | 68 | Jul 2026 |
| 88 | baumschule-newgarden.de | 3.11/10 | 100 | 469 | Aug 2024 |
| 89 | bb-verpackungsshop.de | 2.69/10 | 39 | 52 | Feb 2026 |
| 90 | beauty-star.it | 2.54/10 | 21 | 156 | Feb 2021 |
| 91 | beautycos.dk | 4.07/10 | 70 | 544 | Dec 2023 |
| 92 | begood.no | 1.66/10 | - | 51 | Apr 2026 |
| 93 | benestore.it | 0.62/10 | 1 | 32 | Dec 2021 |
| 94 | bents.co.uk | 3.90/10 | 680 | 3,273 | Jul 2025 |
| 95 | bertonistore.it | 1.68/10 | - | 27 | Jun 2025 |
| 96 | beslagsmanden.dk | 2.95/10 | 1 | 9 | Jul 2023 |
| 97 | bestratingsmarkt.com | 2.37/10 | 3 | 24 | Feb 2026 |
| 98 | bhsupport.nl | 2.45/10 | - | - | May 2023 |
| 99 | bigrigworld.com | 1.53/10 | 32,000 | 11,990 | Aug 2025 |
| 100 | bikable.com | 1.76/10 | 790 | 2,272 | 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) →
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