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 74,472 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 | 40.18% |
| Open-Graph-Protocol | miscellaneous | 38.98% |
| jQuery | wappalyzer | 34.38% |
| Cloudflare | wappalyzer | 30.34% |
| HTTP/3 | wappalyzer | 26.57% |
| JQuery | miscellaneous | 24.76% |
| Cloudflare Bot Management | wappalyzer | 23.8% |
| Script | miscellaneous | 22.52% |
| Google Analytics | wappalyzer | 21.41% |
| MetaGenerator | miscellaneous | 19.14% |
| PHP | wappalyzer | 15.13% |
| Google-Analytics | miscellaneous | 14.01% |
| WordPress | cms | 12.63% |
| Google Tag Manager | wappalyzer | 12.15% |
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 |
|---|---|
| Comune di Grazzano Badoglio - Home Page https://www.comune.grazzanobadoglio.at.it/ | 2026-06-15 |
| Comune di Polla | Comune di Polla https://www.comune.polla.sa.it | 2026-06-15 |
| Ordine Professioni Infermieristiche di ANCONA https://www.opiancona.it | 2026-06-15 |
| Fondazione Ordine Giornalisti Emilia-Romagna Home - Fondazione Ordine Giornalisti Emilia-Romagna http://odg.bo.it/fondazione/ | 2026-06-15 |
| Sign in - Matomo https://analytics1.speedcache.io | 2026-06-15 |
| COMUNE DI VERNAZZA (SP) | Sito Istituzionale https://www.comune.vernazza.sp.it | 2026-06-15 |
| बेनीघाट रोराङ गाउँपालिका | गाउँ कार्यपालिकाको कार्यालय,विशालटार, धादिङ, बाागमती प्रदेश, नेपाल http://benighatrorangmun.gov.np | 2026-06-15 |
| Consorzio di bonifica Centro - Home page https://www.bonificacentro.it | 2026-06-15 |
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 74,472 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 jQuery. 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.