What powers chemsec.org?
Last seen Jun 2026 · 51 technologies across 25 categories
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Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| ptfe teflon | #5 | 1,400 |
| what is polytetrafluoroethylene | #5 | 170 |
| teflon ptfe | #8 | 120 |
| teflon chemical | #3 | 70 |
| polytetrafluoroethylene pfas | #1 | 64 |
| does teflon have pfas | #1 | 52 |
| teflon chemical name | #3 | 47 |
| what is teflon | #11 | 33 |
| what is teflon made of | #4 | 32 |
| ptfe vs teflon | #7 | 31 |
| is ptfe pfas | #1 | 27 |
| teflon polymer | #3 | 25 |
| pfas company | #1 | 21 |
| pfas companies | #1 | 21 |
| chems | #39 | 19 |
| ptfe coating | #18 | 18 |
| pfas ptfe | #1 | 15 |
| pfas in teflon | #1 | 15 |
| ptfe meaning | #9 | 15 |
| wile e coyote cliff | #4 | 14 |
| teflon plastic | #7 | 14 |
| what ptfe | #3 | 14 |
| iihc | #3 | 14 |
| pfas in electronics | #1 | 12 |
| is ptfe and teflon the same | #5 | 12 |
The site's top keywords in Google (US), with the visits each one is estimated to bring per month.
Top backlinks
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
Audience
- 67% desktop
- 33% phone
United Kingdom
United States
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
6.64 / 10 · ranked #66,589 of all domains
484 referring domains · OpenPageRank
Search traffic
2,600 est. monthly organic visits (US)
565 keywords in Google's top 30
Core Web Vitals
| LCP | 1.4 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English (United States)
- Weight: 2.4 MB · 37 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| textileguide.chemsec.org | 23 |
| marketplace.chemsec.org | 20 |
| sinlist.chemsec.org | 16 |
| chemsec.org | 14 |
| sinsearch.chemsec.org | 14 |
| sinimilarity.chemsec.org | 11 |
| chemscore.chemsec.org | 10 |
| pfas.chemsec.org | 10 |
Full technology history →
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Recent changes
- dropped Imunify360 Feb 2026
- dropped jsDelivr Feb 2026
- dropped Nginx Feb 2026
- dropped OpenResty Feb 2026
- detected Nginx Sep 2025
- detected OpenResty Sep 2025
- dropped Akamai Aug 2025
- dropped Akamai Bot Manager Aug 2025
- dropped Dojo Aug 2025