HTTP Strict Transport Security is not configured. Recommended for HTTPS sites.
ℹ 🔵Missing Content Security Policy
CSP is not configured. It helps prevent XSS attacks and content injection.
ℹ 🔵Missing X-Frame-Options
The site can be embedded in iframes by third parties (clickjacking risk).
HTTP Status Code200 HTTP VersionHTTP/1.1 HTTPS✔ Available IP Address32.194.153.116 Server SoftwareAmazonS3 CDNCDN (Hit from cloudfront) Compressiongzip ℹ 🔵Missing HSTSHTTP Strict Transport Security is not configured. Recommended for HTTPS sites. ℹ 🔵Missing Content Security PolicyCSP is not configured. It helps prevent XSS attacks and content injection. ℹ 🔵Missing X-Frame-OptionsThe site can be embedded in iframes by third parties (clickjacking risk).
Performance
DNS Lookup
5.6 ms
TCP Connect
87.8 ms
TLS Handshake
84.3 ms
Time To First Byte (TTFB)
335.9 ms
Content Download
0.2 ms
Total Response Time
336.1 ms
DNS Lookup5.6 ms TCP Connect87.8 ms TLS Handshake84.3 ms Time To First Byte (TTFB)335.9 ms Content Download0.2 ms Total Response Time336.1 ms
Security
HTTPS
✔ Enabled
HSTS
✘ Not configured
CSP
⚠ Not configured
X-Frame-Options
⚠ Not configured
X-Content-Type-Options
⚠ Not configured
HTTP/2
⚠ HTTP/1.1
HTTPS✔ Enabled HSTS✘ Not configured CSP⚠ Not configured X-Frame-Options⚠ Not configured X-Content-Type-Options⚠ Not configured HTTP/2⚠ HTTP/1.1
DateThu, 20 Aug 2026 06:32:00 GMT Content-typetext/html Last-modifiedWed, 19 Aug 2026 14:14:55 GMT ServerAmazonS3 X-amz-server-side-encryptionAES256 Content-encodinggzip EtagW/"f188695a11b3d18905fee3e48fca36e5" VaryAccept-Encoding X-cacheHit from cloudfront Via1.1 870f727707d4b04bb51c428dfcc673b4.cloudfront.net (CloudFront) X-amz-cf-popIAD61-P8 X-amz-cf-ido_boeOWVN1NPoPZSvwsvbwNaW9RYI6KPdSCdg3Pj9j4A_Uqwpw-3RQ== Age58618
Dc:languageen Dc:formattext/html Dc:rightsCC BY 4.0 Dc:sourceCrossref Dc:typewebsite Dc:titleYou are Crossref Og:titleYou are Crossref - Crossref Og:site_namewww.crossref.org Og:descriptionCrossref is open infrastructure linking the world Og:typewebsite Og:urlhttps://www.crossref.org/ Og:image Og:updated_time2026-07-25T00:00:00