X-UA-Compatible
This signal marks the presence of the X-UA-Compatible meta tag, a legacy directive that tells Internet Explorer which rendering mode to use. ScanMalware records it during the scan.
The tag is a relic of the IE era and has no effect in modern browsers. It is mostly an indicator that a page or its template is old, with no direct security meaning.
Commonly deployed alongside X-UA-Compatible
Of the 84,562 public scans where X-UA-Compatible was detected, these are the technologies most often present on the same site. The share is the percentage of X-UA-Compatible sites that also ran each one.
| Technology | Category | Share of X-UA-Compatible sites |
|---|---|---|
| HSTS | wappalyzer | 38.48% |
| Open-Graph-Protocol | miscellaneous | 36.52% |
| Cloudflare | wappalyzer | 34.11% |
| jQuery | wappalyzer | 32.77% |
| Cloudflare Bot Management | wappalyzer | 27.99% |
| HTTP/3 | wappalyzer | 26.26% |
| JQuery | miscellaneous | 23.43% |
| Google Analytics | wappalyzer | 21.08% |
| Script | miscellaneous | 19.83% |
| MetaGenerator | miscellaneous | 17.74% |
| PHP | wappalyzer | 14.17% |
| Google-Analytics | miscellaneous | 13.82% |
| PasswordField | miscellaneous | 12.24% |
| WordPress | cms | 12% |
How ScanMalware detects X-UA-Compatible
X-UA-Compatible is detected by analysing the response headers, HTML markup, JavaScript runtime and asset URLs captured when ScanMalware loads the site in a real headless browser.
From any scan you can pivot into related signals — JARM TLS fingerprints, ASN ownership and BGP routing, certificate history, JavaScript analysis and the overall security verdict — to understand not just that X-UA-Compatible is present, but how it is being used. Open the full search interface for X-UA-Compatible →
Recent public scans featuring X-UA-Compatible
A rolling sample of recent public scans where X-UA-Compatible was detected. Listing a site here is not a safety judgement — open a scan to see its full verdict.
| Site | Scanned |
|---|---|
| Sign in to your account https://www.dev.www.www.www.03-120-55-020.plesk.page/auth/oidc/azure | 2026-07-22 |
| Rhumbix Dashboard https://api.prod.rhumbix.com | 2026-07-22 |
| English Community - Sony https://community.sony.ba | 2026-07-22 |
| Worker threw exception | sp21ct7-belnor-biz-karvik-meslo.pages.dev | Cloudflare http://sp21ct7-belnor-biz-karvik-meslo.pages.dev/ | 2026-07-22 |
| Worker threw exception | e7pp-81ehaa-yii-eiybn6-f1uo5d.pages.dev | Cloudflare http://e7pp-81ehaa-yii-eiybn6-f1uo5d.pages.dev/ | 2026-07-22 |
| Reach Out to Warda Transport: Custom Logistics Solutions for Business Growth & Efficiency. https://transport-178.pages.dev/contact.html | 2026-07-22 |
| Worker threw exception | sp21ct7-norlek-biz-vastri-molsen.pages.dev | Cloudflare http://sp21ct7-norlek-biz-vastri-molsen.pages.dev/ | 2026-07-22 |
| Map of current California wildfires - Save the Redwoods League https://www.savetheredwoods.org/resources/map-of-current-california-wildfires/ | 2026-07-22 |
Frequently asked questions about X-UA-Compatible
- Does using X-UA-Compatible mean a website is unsafe?
- No. X-UA-Compatible is a stack component, not a verdict. ScanMalware scores the whole page — its scripts, redirects, certificates, threat-intelligence matches and behaviour — so a site using X-UA-Compatible can be perfectly safe or actively malicious.
- How many sites using X-UA-Compatible has ScanMalware scanned?
- X-UA-Compatible has been detected in 84,562 public scans on ScanMalware.com. Each scan is a real headless-browser visit, and the figure updates as new URLs are submitted.
- What technologies are commonly used with X-UA-Compatible?
- Across scanned sites, X-UA-Compatible is most often seen alongside HSTS, Open-Graph-Protocol and Cloudflare. The full co-occurrence breakdown is listed on this page.
Browse all profiled technologies on the technology index, or scan a URL to see its full stack.