额外信息 针对 https://fileformat.info
Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 188.114.96.2 |
| Server Software | cloudflare |
| CDN | Cloudflare |
| Compression | gzip |
|
🔒 🟡 Mixed Content (3 HTTP resources) | The page is served over HTTPS but loads 3 resource(s) over HTTP. This may be blocked in modern browsers. |
|
ℹ 🔵 Missing HSTS | 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 Code 200
HTTP Version HTTP/1.1
HTTPS ✔ Available
IP Address 188.114.96.2
Server Software cloudflare
CDN Cloudflare
Compression gzip
🔒 🟡 Mixed Content (3 HTTP resources) The page is served over HTTPS but loads 3 resource(s) over HTTP. This may be blocked in modern browsers.
ℹ 🔵 Missing HSTS 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).
Redirect Chain
| # | URL | HTTP Status Code | Status |
| 1 | https://fileformat.info:443 | 307 | HTTP/2 307 |
| 2 | https://www.fileformat.info/ | 200 | HTTP/2 200 |
#1 URL https://fileformat.info:443
HTTP Status Code 307
Status HTTP/2 307
#2 URL https://www.fileformat.info/
HTTP Status Code 200
Status HTTP/2 200
Performance
| DNS Lookup | 6.5 ms |
| TCP Connect | 8.6 ms |
| TLS Handshake | 14 ms |
| Time To First Byte (TTFB) | 138.7 ms |
| Content Download | 7.4 ms |
| Total Response Time | 146.1 ms |
DNS Lookup 6.5 ms
TCP Connect 8.6 ms
TLS Handshake 14 ms
Time To First Byte (TTFB) 138.7 ms
Content Download 7.4 ms
Total Response Time 146.1 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
SEO Quick Check
| Title | FileFormat.Info: The Digital Rosetta Stone |
| Meta Description | FileFormat.Info is the source for file format standards, online file conversions, and detailed file specifications, including Unicode characters, MIME types and file extensions |
Title FileFormat.Info: The Digital Rosetta Stone
Meta Description FileFormat.Info is the source for file format standards, online file conversions, and detailed file specifications, including Unicode characters, MIME types and file extensions
Detected Technologies
| Technology | Bootstrap Google Analytics Google Tag Manager Cloudflare Node.js |
Technology Bootstrap Google Analytics Google Tag Manager Cloudflare Node.js
HTTP Headers
| Date
| Thu, 20 Aug 2026 11:40:57 GMT |
| Content-type
| text/html;charset=utf-8 |
| Server
| cloudflare |
| Set-cookie
| JSESSIONID=node0olzbt3wquqpn1dcjcvz6m1zza124694.node0; Path=/ |
| Expires
| Thu, 20 Aug 2026 11:45:57 GMT |
| Nel
| {"report_to":"cf-nel","success_fraction":0.0,"max_age":604800} |
| Cf-cache-status
| DYNAMIC |
| Report-to
| {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=qqOamX91%2B0%2FpVYMEY%2FYF0EkMSVCr7TcdqQmhiAwxyLnY2j%2F%2FhxPYD73dTzjTVkWuQR9qi3apu64VbNgOFrCHQulCPsPM2FSPLqMnzIqsAUgx1f9MHw%2F%2BQaF0LuZNZ0HjwBg3sKbNblEo75bG8uUL8Ly6"}]} |
| Content-encoding
| gzip |
| Cf-ray
| a2e1204d4908d10f-CDG |
| Alt-svc
| h3=":443"; ma=86400 |
Meta Tags
| Viewport | width=device-width, initial-scale=1.0 |
| Referrer | unsafe-url |
| Description | FileFormat.Info is the source for file format standards, online file conversions, and detailed file specifications, including Unicode characters, MIME types and file extensions |
| Keywords | digital rosetta stone, file conversion, convert file, file extension, file extensions, file formats, file types, MIME types, file specifications, Unicode |
| Verify-v1 | kVW2ZSrZWfJckgfmH94dsXx3oVaa8bt26Nr8h0TKnY4= |
| Google-site-verification | 2MbVycToW01FfocD5kQcKZ0q5MgU_eWWESRI0O7NjsY |
| Msvalidate.01 | 009698825B70411A9AC7AE40679FA3D0 |
| Wot-verification | d1d0fe11165291afcc1d |
Date Thu, 20 Aug 2026 11:40:57 GMT
Content-type text/html;charset=utf-8
Server cloudflare
Set-cookie JSESSIONID=node0olzbt3wquqpn1dcjcvz6m1zza124694.node0; Path=/
Expires Thu, 20 Aug 2026 11:45:57 GMT
Nel {"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}
Cf-cache-status DYNAMIC
Report-to {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=qqOamX91%2B0%2FpVYMEY%2FYF0EkMSVCr7TcdqQmhiAwxyLnY2j%2F%2FhxPYD73dTzjTVkWuQR9qi3apu64VbNgOFrCHQulCPsPM2FSPLqMnzIqsAUgx1f9MHw%2F%2BQaF0LuZNZ0HjwBg3sKbNblEo75bG8uUL8Ly6"}]}
Content-encoding gzip
Cf-ray a2e1204d4908d10f-CDG
Alt-svc h3=":443"; ma=86400
Viewport width=device-width, initial-scale=1.0
Referrer unsafe-url
Description FileFormat.Info is the source for file format standards, online file conversions, and detailed file specifications, including Unicode characters, MIME types and file extensions
Keywords digital rosetta stone, file conversion, convert file, file extension, file extensions, file formats, file types, MIME types, file specifications, Unicode
Verify-v1 kVW2ZSrZWfJckgfmH94dsXx3oVaa8bt26Nr8h0TKnY4=
Google-site-verification 2MbVycToW01FfocD5kQcKZ0q5MgU_eWWESRI0O7NjsY
Msvalidate.01 009698825B70411A9AC7AE40679FA3D0
Wot-verification d1d0fe11165291afcc1d
