Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 3.165.136.83 |
| Server Software | nginx/1.18.0 (Ubuntu) |
| CDN | CDN (Hit from cloudfront) |
| 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. |
HTTP Status Code 200
HTTP Version HTTP/1.1
HTTPS ✔ Available
IP Address 3.165.136.83
Server Software nginx/1.18.0 (Ubuntu)
CDN CDN (Hit from cloudfront)
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.
Redirect Chain
| # | URL | HTTP Status Code | Status |
| 1 | https://sciencesetavenir.fr:443 | 301 | HTTP/2 301 |
| 2 | https://www.sciencesetavenir.fr:443/ | 200 | HTTP/2 200 |
#1 URL https://sciencesetavenir.fr:443
HTTP Status Code 301
Status HTTP/2 301
#2 URL https://www.sciencesetavenir.fr:443/
HTTP Status Code 200
Status HTTP/2 200
Performance
| DNS Lookup | 10.5 ms |
| TCP Connect | 11.6 ms |
| TLS Handshake | 4.1 ms |
| Time To First Byte (TTFB) | 21.7 ms |
| Content Download | 0.6 ms |
| Total Response Time | 22.3 ms |
DNS Lookup 10.5 ms
TCP Connect 11.6 ms
TLS Handshake 4.1 ms
Time To First Byte (TTFB) 21.7 ms
Content Download 0.6 ms
Total Response Time 22.3 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✘ Not configured |
| CSP | ⚠ Not configured |
| X-Frame-Options | ✔ deny |
| X-Content-Type-Options | ⚠ Not configured |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✘ Not configured
CSP ⚠ Not configured
X-Frame-Options ✔ deny
X-Content-Type-Options ⚠ Not configured
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
| Title | Sciences et Avenir, l’actualité des sciences |
| Meta Description | Toute l'actualité scientifique est sur sciencesetavenir.fr : sciences naturelles, sciences humaines, environnement, archéologie, exploration spatiale... |
| Canonical | https://www.sciencesetavenir.fr/ |
| Robots Meta | index, follow, noodp, noarchive, max-snippet:300, max-image-preview:large, max-video-preview:5 |
Title Sciences et Avenir, l’actualité des sciences
Meta Description Toute l'actualité scientifique est sur sciencesetavenir.fr : sciences naturelles, sciences humaines, environnement, archéologie, exploration spatiale...
Canonical https://www.sciencesetavenir.fr/
Robots Meta index, follow, noodp, noarchive, max-snippet:300, max-image-preview:large, max-video-preview:5
Detected Technologies
| Technology | jQuery Google Analytics Google Tag Manager Nginx |
Technology jQuery Google Analytics Google Tag Manager Nginx
HTTP Headers
| Content-type
| text/html; charset=utf-8 |
| Date
| Fri, 24 Jul 2026 22:16:34 GMT |
| Content-encoding
| gzip |
| X-frame-options
| deny |
| Server
| nginx/1.18.0 (Ubuntu) |
| Cache-control
| public, max-age=300, must-revalidate, proxy-revalidate, stale-while-revalidate=30 |
| Vary
| Accept-Encoding |
| X-cache
| Hit from cloudfront |
| Via
| 1.1 5ea3958a34cd41514b9c3d8c0493837c.cloudfront.net (CloudFront) |
| X-amz-cf-pop
| CDG52-P3 |
| Alt-svc
| h3=":443"; ma=86400 |
| X-amz-cf-id
| 7kMyLezvWoWlsL-eI4f55RhuL0MsUL2Fqm9aYiNnBKBh7Hxdmrk7NA== |
| Age
| 272 |
Meta Tags
| Description | Toute l'actualité scientifique est sur sciencesetavenir.fr : sciences naturelles, sciences humaines, environnement, archéologie, exploration spatiale... |
| Viewport | width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=2.0 |
| Robots | index, follow, noodp, noarchive, max-snippet:300, max-image-preview:large, max-video-preview:5 |
| Theme-color | #333333 |
| Apple-itunes-app | app-id=578206857 |
| Refresh | 400 |
| Pragma | no-cache |
Content-type text/html; charset=utf-8
Date Fri, 24 Jul 2026 22:16:34 GMT
Content-encoding gzip
X-frame-options deny
Server nginx/1.18.0 (Ubuntu)
Cache-control public, max-age=300, must-revalidate, proxy-revalidate, stale-while-revalidate=30
Vary Accept-Encoding
X-cache Hit from cloudfront
Via 1.1 5ea3958a34cd41514b9c3d8c0493837c.cloudfront.net (CloudFront)
X-amz-cf-pop CDG52-P3
Alt-svc h3=":443"; ma=86400
X-amz-cf-id 7kMyLezvWoWlsL-eI4f55RhuL0MsUL2Fqm9aYiNnBKBh7Hxdmrk7NA==
Age 272
