Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 172.67.183.121 |
| Server Software | cloudflare |
| CDN | Cloudflare |
| Compression | gzip |
|
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 172.67.183.121
Server Software cloudflare
CDN Cloudflare
Compression gzip
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).
Performance
| DNS Lookup | 22.9 ms |
| TCP Connect | 24.7 ms |
| TLS Handshake | 7.1 ms |
| Time To First Byte (TTFB) | 97.3 ms |
| Content Download | 0.4 ms |
| Total Response Time | 97.7 ms |
DNS Lookup 22.9 ms
TCP Connect 24.7 ms
TLS Handshake 7.1 ms
Time To First Byte (TTFB) 97.3 ms
Content Download 0.4 ms
Total Response Time 97.7 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 | Subdomain Finder - C99.nl |
| Meta Description | Subdomain Finder is a scanner that scans an entire domain to find as many subdomains as possible. |
Title Subdomain Finder - C99.nl
Meta Description Subdomain Finder is a scanner that scans an entire domain to find as many subdomains as possible.
Detected Technologies
| Technology | Bootstrap Google Analytics Google Tag Manager Cloudflare Apache PHP |
Technology Bootstrap Google Analytics Google Tag Manager Cloudflare Apache PHP
HTTP Headers
| Date
| Tue, 28 Jul 2026 00:52:57 GMT |
| Content-type
| text/html; charset=UTF-8 |
| Server
| cloudflare |
| Nel
| {"report_to":"cf-nel","success_fraction":0.0,"max_age":604800} |
| Vary
| Accept-Encoding |
| Report-to
| {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=5Zlk6M5D3iqFUk7%2BNSrNFCFQHerUG4F0ZdwgQlMvfO%2BmTb5RQxc0syx8rcEzcCm5v1t7iez4RHrF%2FESvPf9pT4w5ekA8IPHjvIkaiAUki8%2FMlX2tAytjiKdMYWNEZcMb%2BiqrCsfPsZ74"}]} |
| Cf-cache-status
| BYPASS |
| Server-timing
| cfEdge;dur=18,cfOrigin;dur=42 |
| Content-encoding
| gzip |
| Cf-ray
| a21fe7715f72d2bc-CDG |
| Alt-svc
| h3=":443"; ma=86400 |
Meta Tags
| X-UA-Compatible | IE=edge |
| Viewport | width=device-width, initial-scale=1.0 |
| Description | Subdomain Finder is a scanner that scans an entire domain to find as many subdomains as possible. |
| Msapplication-TileColor | #000000 |
| Msapplication-TileImage |  |
| Msapplication-config | /assets/browserconfig.xml |
| Theme-color | #FF970F |
Date Tue, 28 Jul 2026 00:52:57 GMT
Content-type text/html; charset=UTF-8
Server cloudflare
Nel {"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}
Vary Accept-Encoding
Report-to {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=5Zlk6M5D3iqFUk7%2BNSrNFCFQHerUG4F0ZdwgQlMvfO%2BmTb5RQxc0syx8rcEzcCm5v1t7iez4RHrF%2FESvPf9pT4w5ekA8IPHjvIkaiAUki8%2FMlX2tAytjiKdMYWNEZcMb%2BiqrCsfPsZ74"}]}
Cf-cache-status BYPASS
Server-timing cfEdge;dur=18,cfOrigin;dur=42
Content-encoding gzip
Cf-ray a21fe7715f72d2bc-CDG
Alt-svc h3=":443"; ma=86400
