Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 35.209.20.5 |
| Server Software | nginx |
| Compression | gzip |
|
🔒 🟡 Mixed Content (8 HTTP resources) | The page is served over HTTPS but loads 8 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 35.209.20.5
Server Software nginx
Compression gzip
🔒 🟡 Mixed Content (8 HTTP resources) The page is served over HTTPS but loads 8 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://pcre.org:443 | 301 | HTTP/2 301 |
| 2 | https://www.pcre.org/ | 200 | HTTP/2 200 |
#1 URL https://pcre.org:443
HTTP Status Code 301
Status HTTP/2 301
#2 URL https://www.pcre.org/
HTTP Status Code 200
Status HTTP/2 200
Performance
| DNS Lookup | 16.7 ms |
| TCP Connect | 117.8 ms |
| TLS Handshake | 207.3 ms |
| Time To First Byte (TTFB) | 427.1 ms |
| Content Download | 0.3 ms |
| Total Response Time | 427.4 ms |
DNS Lookup 16.7 ms
TCP Connect 117.8 ms
TLS Handshake 207.3 ms
Time To First Byte (TTFB) 427.1 ms
Content Download 0.3 ms
Total Response Time 427.4 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 | PCRE - Perl Compatible Regular Expressions |
| Meta Description | The PCRE library is a set of functions that implement regular expression pattern matching using the same syntax and semantics as Perl 5. PCRE has its own native API as well as a set of wrapper functions that correspond to the POSIX regular expression API. |
Title PCRE - Perl Compatible Regular Expressions
Meta Description The PCRE library is a set of functions that implement regular expression pattern matching using the same syntax and semantics as Perl 5. PCRE has its own native API as well as a set of wrapper functions that correspond to the POSIX regular expression API.
Detected Technologies
| Technology | Google Analytics Nginx Apache PHP Node.js |
Technology Google Analytics Nginx Apache PHP Node.js
HTTP Headers
| Server
| nginx |
| Date
| Tue, 21 Jul 2026 09:58:50 GMT |
| Content-type
| text/html |
| Vary
| Accept-Encoding |
| Last-modified
| Sun, 23 Nov 2025 14:45:48 GMT |
| Etag
| W/"1f0e-644441a3cf8c6" |
| X-httpd-modphp
| 1 |
| Host-header
| 8441280b0c35cbc1147f8ba998a563a7 |
| X-proxy-cache
| HIT |
| Content-encoding
| gzip |
Meta Tags
| Title | PCRE - Perl Compatible Regular Expressions |
| Description | The PCRE library is a set of functions that implement regular expression pattern matching using the same syntax and semantics as Perl 5. PCRE has its own native API as well as a set of wrapper functions that correspond to the POSIX regular expression API. |
| Keywords | pcre, regex, regexp, regular expression, perl, perlre, philip hazel |
Server nginx
Date Tue, 21 Jul 2026 09:58:50 GMT
Content-type text/html
Vary Accept-Encoding
Last-modified Sun, 23 Nov 2025 14:45:48 GMT
Etag W/"1f0e-644441a3cf8c6"
X-httpd-modphp 1
Host-header 8441280b0c35cbc1147f8ba998a563a7
X-proxy-cache HIT
Content-encoding gzip
