What powers ul.org?
Last seen Jun 2026 · 86 technologies across 31 categories
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Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| wisci | #25 | 950 |
| thermal runaway | #2 | 580 |
| what is a lithium ion battery | #6 | 500 |
| ul laboratories | #3 | 350 |
| underwriters laboratories inc | #3 | 350 |
| lithium | #38 | 280 |
| ul laboratories | #5 | 170 |
| what are lithium ion batteries | #3 | 140 |
| ul lab | #3 | 130 |
| lithium battery | #33 | 120 |
| fsri | #4 | 110 |
| underwriters laboratories logo | #3 | 97 |
| thermal | #56 | 78 |
| ul careers | #3 | 70 |
| li-ion battery definition | #2 | 63 |
| underwriters laboratories | #10 | 56 |
| lithium ion thermal runaway | #4 | 47 |
| ul safety | #2 | 42 |
| ul llc | #5 | 41 |
| watts of love | #4 | 32 |
| mdri | #4 | 32 |
| ul labs | #10 | 31 |
| under laboratories | #3 | 31 |
| firefighter safety | #35 | 29 |
| purdue cares | #3 | 25 |
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
- 86% phone
- 14% desktop
United States
India
Germany
United Kingdom
France
Indonesia
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
6.67 / 10 · ranked #64,397 of all domains
381 referring domains · OpenPageRank
Search traffic
5,200 est. monthly organic visits (US)
1,004 keywords in Google's top 30
Core Web Vitals
| LCP | 1.7 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English (United States)
- CDN: Fastly
- Weight: 21.8 MB · 86 requests
- WordPress theme: ul · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| chemicalinsights.ul.org | 39 |
| ul.org | 35 |
| credentials.ul.org | 30 |
| besafebuyreal.ul.org | 25 |
| smokealarms.ul.org | 22 |
| explorestandards.ul.org | 16 |
| opendata.ul.org | 12 |
Full technology history →
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Recent changes
- dropped Google AdSense Apr 2026
- dropped YouTube Mar 2026