Websites Powered by Intersection Observer

15,614 websites tracked using Intersection Observer (Performance) · www.w3.org

Intersection Observer is a performance optimization tool that speeds up the site. Its official site is w3.org. PoweredBy tracks the websites that use Intersection Observer across the public web; the tracked counts, adoption trend, and site list on this page are updated from our ongoing crawl of the performance ecosystem.

Usage trend

Domains observed using Intersection Observer in each month's HTTP Archive crawl, Oct 2021 to Oct 2026 · peak 5,854 in May 2026. The tracked total above also counts sites not re-crawled recently.

Core Web Vitals

LCP 1.8 s INP 75 ms CLS 0 TTFB 800 ms

Median site among 6,123 Intersection Observer sites with Chrome UX data, p75 values, Sep 2026.

Top countries

Japan 3,623
India 491
United States 491
France 394
Italy 321
United Kingdom 302
Germany 278
Indonesia 254

Sites using Intersection Observer by audience country, Chrome UX Report.

Usage by industry

IndustryShareWebsites
Travel and hospitality 0.21% 182
Education 0.12% 78
Pets and animals 0.09% 3
Legal 0.05% 13
Home and construction 0.03% 17
Healthcare 0.03% 32
Arts and entertainment 0.02% 11
Beauty and wellness 0.02% 6
Sports and fitness 0.02% 4
News and media 0.01% 6
Blogs and publishing 0.01% 3
Retail 0.01% 37

Share of each industry's websites with a detected stack that use Intersection Observer; industries come from what sites declare in their own structured data.

Top sites by authority

9+ <1% · 2 of 372 sites
8+ <1% · 22 of 7,677 sites
7+ <1% · 60 of 45,712 sites
6+ <1% · 90 of 110,136 sites
5+ <1% · 143 of 246,751 sites

The share of the web's most authoritative domains, by Open Page Rank tier, seen running Intersection Observer in recent crawls. Only 372 domains worldwide score 9 or higher.

Websites using Intersection Observer

#DomainOpen Page RankOPREst. monthly visits (US)Visits (US)KeywordsFirst seen
4601 frgrf.net 0.25/10 - - Aug 2022
4602 kshasinkan.net 0.25/10 - - Aug 2023
4603 nakamura-biyou.net 0.25/10 - - Aug 2022
4604 bin-beans.net 0.25/10 - - Apr 2023
4605 sofa14syuuri-lesits.net 0.25/10 - - Jun 2023
4606 cycletrash.net 0.25/10 - - Aug 2022
4607 acolasia.work 0.25/10 - - Apr 2024
4608 politecnicosanjuandepasto.edu.co 0.25/10 - - Aug 2025
4609 tonton.work 0.25/10 - - Jul 2025
4610 kosei.nagoya 0.25/10 - - Jun 2025
4611 mipc.ac.rw 0.25/10 - - Dec 2023
4612 stcmatara.lk 0.25/10 - - Apr 2024
4613 nalamsc.edu.bd 0.25/10 - - Apr 2024
4614 luyanzi.ac.ug 0.25/10 - - Sep 2026
4615 peacevilleintl.academy 0.25/10 - - May 2023
4616 colegiolasorbona.edu.pe 0.25/10 - - Feb 2024
4617 altaelimia.academy 0.25/10 - - Mar 2022
4618 dedalus-academy.aero 0.25/10 - - Aug 2024
4619 thinkingkids.art 0.25/10 - - Feb 2026
4620 compactdisco.asia 0.25/10 - - Nov 2021
4621 brighton.edu.bd 0.25/10 - - Dec 2025
4622 edumedical.com.co 0.25/10 - - May 2024
4623 kanshoku.co 0.25/10 - - Oct 2023
4624 about.domains 0.25/10 - - Oct 2026
4625 uepcatolicadecuenca.edu.ec 0.25/10 - - Apr 2025
4626 akaike.farm 0.25/10 - - Aug 2026
4627 pardisp.ir 0.25/10 - - Jun 2025
4628 stjohns.edu.lk 0.25/10 - - Nov 2023
4629 marinamoraescuela.com.pe 0.25/10 - - Feb 2025
4630 institutonova.edu.pe 0.25/10 - - Mar 2025
4631 nichiei.work 0.25/10 - - Jul 2023
4632 edencollege.edu.pk 0.25/10 - - Jul 2022
4633 hokutokougyo.com 0.24/10 - - Jul 2026
4634 anniversary-style.com 0.24/10 - - May 2023
4635 novotel-living-singapore-orchard.com 0.24/10 - - Jun 2026
4636 bc-hot.com 0.24/10 - - Nov 2025
4637 telemaque-beach.com 0.24/10 - - Dec 2025
4638 royal-karthago.com 0.24/10 - - May 2026
4639 greenparkhotelparis.com 0.24/10 - - Sep 2024
4640 wikiexport.ai 0.24/10 - - Sep 2024
4641 morihaku-ec.site 0.24/10 - - Apr 2024
4642 kururiya.site 0.24/10 - - Jul 2025
4643 ume201.site 0.24/10 - - Nov 2023
4644 lacasakaprijke.be 0.24/10 - - Nov 2021
4645 huvilooja.ee 0.24/10 - - Oct 2024
4646 ehteariparnu.ee 0.24/10 - - May 2024
4647 iseya.org 0.24/10 - - May 2022
4648 kmctctm.org 0.24/10 - - May 2026
4649 shribhawaniniketanlawcollege.org 0.24/10 - - Nov 2024
4650 rivest.ee 0.24/10 - - Aug 2022
4651 logotooted.ee 0.24/10 - - Apr 2025
4652 northland.tokyo 0.24/10 - - Feb 2023
4653 art-c.net 0.24/10 - - Apr 2024
4654 iroe.net 0.24/10 - - Jun 2023
4655 sefiirikunstnik.ee 0.24/10 - - Sep 2025
4656 hayashicam.net 0.24/10 - - Nov 2022
4657 kaleidokmct.org 0.24/10 - - Oct 2025
4658 kmctcem.org 0.24/10 - - Sep 2026
4659 gee-mc.net 0.24/10 - - Dec 2022
4660 acmeautomation.net 0.24/10 - 11 Jun 2025
4661 quick-change.net 0.24/10 - - Feb 2024
4662 morita-nouen.net 0.24/10 - - Aug 2026
4663 panorama16.ru 0.24/10 - - Oct 2026
4664 ceto-shop.net 0.24/10 - - Aug 2022
4665 barber-place.net 0.24/10 - - Jan 2024
4666 tsaclub.net 0.24/10 - - Dec 2024
4667 atsumaru.space 0.24/10 - - Sep 2022
4668 gymnas.net 0.24/10 - - Apr 2025
4669 tuhoctienganh.net 0.24/10 - - Jul 2026
4670 ets-split.hr 0.24/10 - - Feb 2025
4671 novoteltangerang.com 0.23/10 - - Jul 2024
4672 vintageplus.co.kr 0.23/10 - - Jan 2022
4673 balticwelders.ee 0.23/10 - - Oct 2025
4674 silkie.ee 0.23/10 - - Feb 2024
4675 mecpro2007.com.tw 0.23/10 - - Jun 2026
4676 drhero.org 0.23/10 - - Mar 2024
4677 kingway.com.tw 0.23/10 - - Nov 2024
4678 institutalif.org 0.23/10 - - Dec 2022
4679 igreentech.org 0.23/10 - - Nov 2025
4680 kardinapood.ee 0.23/10 - - Sep 2022
4681 averto.ee 0.23/10 3 25 Nov 2021
4682 shincyuangang.com.tw 0.23/10 - - Nov 2022
4683 tri-stars.tokyo 0.23/10 - - Nov 2021
4684 kleidibutiik.ee 0.23/10 - - Nov 2021
4685 wezer.tokyo 0.23/10 - - Sep 2022
4686 lisell.ee 0.23/10 - - Jun 2025
4687 allsaintsusvg.org 0.23/10 24 11 Jul 2026
4688 dened.org 0.23/10 - - Sep 2022
4689 buuh.ee 0.23/10 - - Aug 2022
4690 hambatarkused.ee 0.23/10 - - Nov 2024
4691 kbutiik.ee 0.23/10 - - May 2023
4692 kivirand.ee 0.23/10 - - Jul 2024
4693 kynkataimeaed.ee 0.23/10 - - Aug 2023
4694 majar.ee 0.23/10 - - Aug 2023
4695 mamahuhu.ee 0.23/10 - - Oct 2022
4696 mobiilnehalumasin.ee 0.23/10 - - Jan 2025
4697 ropkapak.ee 0.23/10 - - Aug 2022
4698 viimsiilutuba.ee 0.23/10 - - Aug 2022
4699 xn--kleepsudpetajale-cwb.ee 0.23/10 - - Sep 2023
4700 fundacioncepytin.org 0.23/10 - - Aug 2022

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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