Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 85.128.208.89 |
| Server Software | Apache/2 |
| Compression | gzip |
|
🔒 🟡 Mixed Content (4 HTTP resources) | The page is served over HTTPS but loads 4 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 85.128.208.89
Server Software Apache/2
Compression gzip
🔒 🟡 Mixed Content (4 HTTP resources) The page is served over HTTPS but loads 4 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://www.celsium.pl:443 | 301 | HTTP/2 301 |
| 2 | https://celsium.pl/ | 200 | HTTP/2 200 |
#1 URL https://www.celsium.pl:443
HTTP Status Code 301
Status HTTP/2 301
#2 URL https://celsium.pl/
HTTP Status Code 200
Status HTTP/2 200
Performance
| DNS Lookup | 37.9 ms |
| TCP Connect | 50.5 ms |
| TLS Handshake | 14.9 ms |
| Time To First Byte (TTFB) | 118.3 ms |
| Content Download | 10.6 ms |
| Total Response Time | 128.9 ms |
DNS Lookup 37.9 ms
TCP Connect 50.5 ms
TLS Handshake 14.9 ms
Time To First Byte (TTFB) 118.3 ms
Content Download 10.6 ms
Total Response Time 128.9 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 | Celsium Sp. z o.o. – Spółka działa na rynku ciepłowniczym od 1974 r. Każdego dnia podejmujemy działania mające na celu przyłączenie nowych odbiorców do systemu ciepłowniczego. Dostarczamy ciepło do odbiorców indywidualnych oraz przemysłu i handlu w sposób, który umożliwia racjonalne jego użytkowanie. |
| Canonical | https://celsium.pl/ |
| Robots Meta | max-image-preview:large |
Title Celsium Sp. z o.o. – Spółka działa na rynku ciepłowniczym od 1974 r. Każdego dnia podejmujemy działania mające na celu przyłączenie nowych odbiorców do systemu ciepłowniczego. Dostarczamy ciepło do odbiorców indywidualnych oraz przemysłu i handlu w sposób, który umożliwia racjonalne jego użytkowanie.
Canonical https://celsium.pl/
Robots Meta max-image-preview:large
Detected Technologies
| Technology | WordPress jQuery Google Analytics Apache PHP Gatsby |
Technology WordPress jQuery Google Analytics Apache PHP Gatsby
HTTP Headers
| Date
| Wed, 22 Jul 2026 12:26:52 GMT |
| Content-type
| text/html; charset=UTF-8 |
| Content-length
| 27029 |
| Vary
| User-Agent,Accept-Encoding |
| Accept-ranges
| bytes |
| X-mod-pagespeed
| enabled |
| Content-encoding
| gzip |
| Cache-control
| max-age=0, no-cache, no-store, must-revalidate |
| Age
| 0 |
| Pragma
| no-cache |
| X-cdn-nazwa.pl-location
| AMS |
| X-cdn-nazwa.pl-age
| 0 |
| X-cdn-nazwa.pl-cache
| MISS |
| X-cdn-nazwa.pl-policyused
| app=no-cache |
| Server
| Apache/2 |
Meta Tags
| Viewport | width=device-width, initial-scale=1 |
| Robots | max-image-preview:large |
| Generator | Elementor 4.1.4; features: additional_custom_breakpoints; settings: css_print_method-internal, google_font-enabled, font_display-swap |
| Msapplication-TileImage |  |
Date Wed, 22 Jul 2026 12:26:52 GMT
Content-type text/html; charset=UTF-8
Content-length 27029
Vary User-Agent,Accept-Encoding
Accept-ranges bytes
X-mod-pagespeed enabled
Content-encoding gzip
Cache-control max-age=0, no-cache, no-store, must-revalidate
Age 0
Pragma no-cache
X-cdn-nazwa.pl-location AMS
X-cdn-nazwa.pl-age 0
X-cdn-nazwa.pl-cache MISS
X-cdn-nazwa.pl-policyused app=no-cache
Server Apache/2
