Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 172.67.69.3 |
| Server Software | cloudflare |
| CDN | Cloudflare |
| Compression | gzip |
|
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 Code 200
HTTP Version HTTP/1.1
HTTPS ✔ Available
IP Address 172.67.69.3
Server Software cloudflare
CDN Cloudflare
Compression gzip
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).
Performance
| DNS Lookup | 6.3 ms |
| TCP Connect | 8.3 ms |
| TLS Handshake | 13.5 ms |
| Time To First Byte (TTFB) | 42.3 ms |
| Content Download | 0.1 ms |
| Total Response Time | 42.4 ms |
DNS Lookup 6.3 ms
TCP Connect 8.3 ms
TLS Handshake 13.5 ms
Time To First Byte (TTFB) 42.3 ms
Content Download 0.1 ms
Total Response Time 42.4 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✔ max-age=31536000; includeSubDomains; preload |
| CSP | ⚠ Not configured |
| X-Frame-Options | ⚠ Not configured |
| X-Content-Type-Options | ⚠ Not configured |
| Permissions Policy | ✔ Configured |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✔ max-age=31536000; includeSubDomains; preload
CSP ⚠ Not configured
X-Frame-Options ⚠ Not configured
X-Content-Type-Options ⚠ Not configured
Permissions Policy ✔ Configured
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
Title Resolve a DOI Name
Detected Technologies
| Technology | Bootstrap Google Analytics Cloudflare |
Technology Bootstrap Google Analytics Cloudflare
HTTP Headers
| Date
| Thu, 20 Aug 2026 18:06:47 GMT |
| Content-type
| text/html;charset=utf-8 |
| Server
| cloudflare |
| Vary
| Origin |
| Permissions-policy
| interest-cohort=(),browsing-topics=() |
| Age
| 308 |
| Report-to
| {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=n29W7yCsdeoZH5HsQXejLjYaztfeOzqqMzYK830XqNACF%2FXiGl9McGchF40m%2FpfA%2BTkTlqvD52w1Mzek5rpIIALQEZj0eE2e2X0B2abhgyTxSMorTKha7382bDR62Xe%2F81LYqxVDUvc%3D"}]} |
| Last-modified
| Thu, 20 Aug 2026 18:01:38 GMT |
| Cache-control
| max-age=14400 |
| Cf-cache-status
| HIT |
| Nel
| {"report_to":"cf-nel","success_fraction":0.0,"max_age":604800} |
| Strict-transport-security
| max-age=31536000; includeSubDomains; preload |
| Content-encoding
| gzip |
| Cf-ray
| a2e3557a4f1802b7-CDG |
| Alt-svc
| h3=":443"; ma=86400 |
Meta Tags
| Viewport | width=device-width, initial-scale=1 |
| X-UA-Compatible | IE=edge |
Date Thu, 20 Aug 2026 18:06:47 GMT
Content-type text/html;charset=utf-8
Server cloudflare
Vary Origin
Permissions-policy interest-cohort=(),browsing-topics=()
Age 308
Report-to {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=n29W7yCsdeoZH5HsQXejLjYaztfeOzqqMzYK830XqNACF%2FXiGl9McGchF40m%2FpfA%2BTkTlqvD52w1Mzek5rpIIALQEZj0eE2e2X0B2abhgyTxSMorTKha7382bDR62Xe%2F81LYqxVDUvc%3D"}]}
Last-modified Thu, 20 Aug 2026 18:01:38 GMT
Cache-control max-age=14400
Cf-cache-status HIT
Nel {"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}
Strict-transport-security max-age=31536000; includeSubDomains; preload
Content-encoding gzip
Cf-ray a2e3557a4f1802b7-CDG
Alt-svc h3=":443"; ma=86400
