Websites Powered by PerimeterX
29,453 websites tracked using PerimeterX (Security) · www.perimeterx.com
PerimeterX is a security tool that protects the site from attacks. Its official site is perimeterx.com. PoweredBy tracks the websites that use PerimeterX across the public web; the tracked counts, adoption trend, and site list on this page are updated from our ongoing crawl of the security ecosystem.
Usage trend
5K
10K
15K
Jul 2021
Oct 2022
Jan 2024
Mar 2025
Jun 2026
Domains observed using PerimeterX in each month's HTTP Archive crawl,
Jul 2021 to Jun 2026 · peak 10,930 in Nov 2023. The tracked total above also
counts sites not re-crawled recently.
Core Web Vitals
LCP 2.1 s
INP 75 ms
CLS 0
TTFB 900 ms
Median site among 6,803 PerimeterX sites with Chrome UX data, p75 values, Jun 2026.
Top countries
United States
4,891
India
2,342
Canada
1,984
United Kingdom
1,917
France
1,393
Germany
1,345
Australia
1,266
Indonesia
1,202
Sites using PerimeterX by audience country, Chrome UX Report.
Top sites by authority
9+
5% · 20 of 372 sites
8+
2% · 116 of 7,677 sites
7+
<1% · 315 of 45,712 sites
6+
<1% · 514 of 110,136 sites
5+
<1% · 754 of 246,751 sites
The share of the web's most authoritative domains, by Open Page Rank tier, seen running PerimeterX in recent crawls. Only 372 domains worldwide score 9 or higher.
Websites using PerimeterX
| # | Domain | Open Page RankOPR | Est. monthly visits (US)Visits (US) | Keywords | First seen |
|---|---|---|---|---|---|
| 1 | linkedin.com | 9.82/10 | 71,256,900 | 17,950,442 | Nov 2024 |
| 2 | github.io | 9.43/10 | 1,800 | 1 | Nov 2025 |
| 3 | blogspot.com | 9.39/10 | - | - | Aug 2021 |
| 4 | washingtonpost.com | 9.26/10 | 2,072,200 | 1,383,754 | Apr 2026 |
| 5 | weebly.com | 9.24/10 | 162,400 | 11,089 | Mar 2023 |
| 6 | harvard.edu | 9.24/10 | 472,900 | 13,570 | Nov 2025 |
| 7 | ca.gov | 9.23/10 | 1,457,100 | 28,722 | Nov 2025 |
| 8 | live.com | 9.20/10 | 1 | 1 | Jun 2024 |
| 9 | npr.org | 9.16/10 | 10,575,400 | 2,190,168 | Jun 2026 |
| 10 | pages.dev | 9.14/10 | - | - | Feb 2026 |
| 11 | myshopify.com | 9.12/10 | - | - | Sep 2021 |
| 12 | bloomberg.com | 9.12/10 | 5,955,500 | 1,460,211 | Jul 2021 |
| 13 | businessinsider.com | 9.11/10 | 6,315,600 | 3,241,167 | Mar 2026 |
| 14 | techcrunch.com | 9.09/10 | 541,300 | 271,761 | Aug 2025 |
| 15 | vercel.app | 9.05/10 | - | - | Jun 2023 |
| 16 | senate.gov | 9.02/10 | 1,931,200 | 175,699 | Nov 2025 |
| 17 | netlify.app | 9.01/10 | 2 | 2 | Apr 2023 |
| 18 | psu.edu | 9.01/10 | 581,600 | 94,595 | Oct 2024 |
| 19 | uk.com | 9.00/10 | 2 | 12 | Aug 2021 |
| 20 | upenn.edu | 9.00/10 | 179,200 | 5,457 | Jun 2026 |
| 21 | jstor.org | 8.98/10 | 765,500 | 767,907 | Nov 2021 |
| 22 | change.org | 8.96/10 | 209,800 | 138,005 | Jul 2021 |
| 23 | webflow.io | 8.95/10 | 79 | 1 | Oct 2024 |
| 24 | jhu.edu | 8.93/10 | 177,400 | 6,915 | Apr 2026 |
| 25 | walmart.com | 8.91/10 | 78,582,300 | 16,234,360 | Jul 2021 |
| 26 | vice.com | 8.89/10 | 1,255,700 | 507,572 | Sep 2024 |
| 27 | us.com | 8.86/10 | 32 | 9 | Mar 2026 |
| 28 | northwestern.edu | 8.86/10 | 193,400 | 45,922 | Nov 2025 |
| 29 | drupal.org | 8.85/10 | 253,400 | 35,665 | Jul 2021 |
| 30 | sap.com | 8.83/10 | 526,000 | 58,757 | Jan 2022 |
| 31 | thehill.com | 8.83/10 | 1,116,800 | 483,815 | Apr 2023 |
| 32 | it.com | 8.81/10 | - | - | Mar 2026 |
| 33 | owasp.org | 8.81/10 | 69,200 | 29,196 | Mar 2025 |
| 34 | fraunhofer.de | 8.79/10 | 2,900 | 3,059 | Nov 2025 |
| 35 | georgetown.edu | 8.78/10 | 138,100 | 27,817 | May 2026 |
| 36 | eu.com | 8.77/10 | - | - | Apr 2026 |
| 37 | web.app | 8.76/10 | - | - | Feb 2024 |
| 38 | thesun.co.uk | 8.76/10 | 549,800 | 570,089 | Sep 2023 |
| 39 | herokuapp.com | 8.74/10 | - | - | Apr 2026 |
| 40 | liberation.fr | 8.74/10 | 17,600 | 9,405 | Jun 2024 |
| 41 | target.com | 8.71/10 | 22,448,300 | 7,909,722 | Aug 2025 |
| 42 | carrd.co | 8.68/10 | 74,900 | 6,103 | Jul 2021 |
| 43 | gatech.edu | 8.68/10 | 72,600 | 12,653 | Nov 2025 |
| 44 | lepoint.fr | 8.68/10 | 9,300 | 16,864 | Dec 2023 |
| 45 | navy.mil | 8.68/10 | 320,800 | 44,371 | Dec 2025 |
| 46 | azure.com | 8.66/10 | - | - | Apr 2026 |
| 47 | usp.br | 8.65/10 | 1 | 19 | Oct 2024 |
| 48 | redis.io | 8.64/10 | 53,300 | 36,680 | Oct 2024 |
| 49 | chron.com | 8.62/10 | 342,500 | 316,084 | Mar 2023 |
| 50 | snopes.com | 8.61/10 | 277,000 | 139,694 | Sep 2024 |
| 51 | dartmouth.edu | 8.60/10 | 38,300 | 13,550 | Oct 2025 |
| 52 | ucm.es | 8.60/10 | 15,000 | 16,497 | Dec 2025 |
| 53 | cn.com | 8.59/10 | 17 | 8 | Mar 2026 |
| 54 | teamtailor.com | 8.59/10 | 360 | 380 | Nov 2025 |
| 55 | nd.edu | 8.59/10 | 56,800 | 8,385 | Oct 2025 |
| 56 | byu.edu | 8.57/10 | 71,300 | 7,371 | Nov 2025 |
| 57 | sfchronicle.com | 8.56/10 | 791,300 | 477,276 | Apr 2023 |
| 58 | rice.edu | 8.56/10 | 256,200 | 13,279 | Nov 2025 |
| 59 | beehiiv.com | 8.55/10 | 37,700 | 2,683 | Aug 2024 |
| 60 | accor.com | 8.55/10 | - | - | Jan 2024 |
| 61 | homedepot.com | 8.55/10 | 48,647,700 | 8,035,590 | Jul 2021 |
| 62 | rwth-aachen.de | 8.55/10 | 640 | 1,476 | May 2026 |
| 63 | uoregon.edu | 8.55/10 | 156,600 | 8,876 | Nov 2025 |
| 64 | 9to5mac.com | 8.54/10 | 197,400 | 232,307 | May 2026 |
| 65 | nrdc.org | 8.53/10 | 239,700 | 90,905 | Jun 2026 |
| 66 | pandora.com | 8.50/10 | 409,200 | 52,381 | Dec 2024 |
| 67 | asus.com | 8.50/10 | 1,078,400 | 375,127 | Dec 2025 |
| 68 | zoominfo.com | 8.47/10 | 1,944,100 | 1,718,073 | Jul 2021 |
| 69 | texastribune.org | 8.45/10 | 379,600 | 132,124 | May 2026 |
| 70 | seekingalpha.com | 8.42/10 | 2,600,900 | 712,225 | Jul 2021 |
| 71 | utk.edu | 8.42/10 | 132,100 | 8,479 | Dec 2025 |
| 72 | theintercept.com | 8.41/10 | 38,900 | 20,401 | Nov 2025 |
| 73 | adb.org | 8.40/10 | 27,000 | 13,792 | Feb 2026 |
| 74 | nj.com | 8.39/10 | 864,300 | 599,985 | Jun 2026 |
| 75 | consumeraffairs.com | 8.36/10 | 1,036,300 | 291,801 | Jul 2023 |
| 76 | audubon.org | 8.36/10 | 1,177,200 | 146,667 | Nov 2025 |
| 77 | rescue.org | 8.35/10 | 111,600 | 43,157 | May 2026 |
| 78 | oregonlive.com | 8.35/10 | 1,020,900 | 450,961 | Jun 2026 |
| 79 | cigna.com | 8.34/10 | 1,250,600 | 263,484 | Jun 2026 |
| 80 | bhphotovideo.com | 8.33/10 | 1,407,300 | 501,229 | Jul 2021 |
| 81 | diplo.de | 8.33/10 | - | - | Feb 2026 |
| 82 | mlive.com | 8.32/10 | 1,005,400 | 553,872 | Jun 2026 |
| 83 | sciencealert.com | 8.32/10 | 369,100 | 136,107 | Aug 2025 |
| 84 | networkforgood.com | 8.31/10 | - | - | Nov 2025 |
| 85 | cleveland.com | 8.31/10 | 862,300 | 551,230 | Jun 2026 |
| 86 | wm.edu | 8.31/10 | 210,900 | 51,291 | Sep 2025 |
| 87 | electrek.co | 8.31/10 | 198,200 | 139,146 | May 2026 |
| 88 | ti.com | 8.30/10 | 249,900 | 69,001 | Jul 2022 |
| 89 | rei.com | 8.29/10 | 3,140,000 | 836,055 | Jun 2026 |
| 90 | sciencesconf.org | 8.27/10 | 57 | 6 | Nov 2025 |
| 91 | newstatesman.com | 8.26/10 | 38,600 | 28,424 | Jun 2026 |
| 92 | grubhub.com | 8.25/10 | 5,173,900 | 2,044,410 | Jul 2021 |
| 93 | quizlet.com | 8.25/10 | 7,177,800 | 3,557,295 | Dec 2023 |
| 94 | mygov.in | 8.25/10 | 1,900 | 2,221 | Nov 2025 |
| 95 | caesars.com | 8.23/10 | 2,160,000 | 216,876 | Nov 2025 |
| 96 | 9to5google.com | 8.21/10 | 250,900 | 123,639 | Jun 2026 |
| 97 | booktopia.com.au | 8.19/10 | 9,800 | 66,269 | Jul 2021 |
| 98 | memberclicks.net | 8.18/10 | - | - | Mar 2026 |
| 99 | skift.com | 8.18/10 | 45,700 | 30,828 | May 2026 |
| 100 | investors.com | 8.17/10 | 824,900 | 158,493 | Jul 2021 |
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) →
Compare PerimeterX
- PerimeterX vs HSTS
- PerimeterX vs reCAPTCHA
- PerimeterX vs Cloudflare Bot Management
- PerimeterX vs Really Simple SSL & Security
- PerimeterX vs DDoS-Guard