Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 23.185.0.3 |
| Server Software | nginx |
| CDN | CDN (HIT, HIT) |
| Compression | gzip |
|
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 23.185.0.3
Server Software nginx
CDN CDN (HIT, HIT)
Compression gzip
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://sciencehistory.org:443 | 301 | HTTP/2 301 |
| 2 | https://www.sciencehistory.org/ | 200 | HTTP/2 200 |
#1 URL https://sciencehistory.org:443
HTTP Status Code 301
Status HTTP/2 301
#2 URL https://www.sciencehistory.org/
HTTP Status Code 200
Status HTTP/2 200
Performance
| DNS Lookup | 2.9 ms |
| TCP Connect | 3.7 ms |
| TLS Handshake | 4.4 ms |
| Time To First Byte (TTFB) | 12.4 ms |
| Content Download | 1.8 ms |
| Total Response Time | 14.2 ms |
DNS Lookup 2.9 ms
TCP Connect 3.7 ms
TLS Handshake 4.4 ms
Time To First Byte (TTFB) 12.4 ms
Content Download 1.8 ms
Total Response Time 14.2 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✔ max-age=300 |
| CSP | ⚠ Not configured |
| X-Frame-Options | ⚠ Not configured |
| X-Content-Type-Options | ⚠ Not configured |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✔ max-age=300
CSP ⚠ Not configured
X-Frame-Options ⚠ Not configured
X-Content-Type-Options ⚠ Not configured
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
| Title | Science History Institute |
| Meta Description | The Science History Institute is a free museum and library that collects, preserves, interprets, and shares the stories behind the science. |
| Canonical | https://www.sciencehistory.org/ |
| Robots Meta | index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1 |
| Open Graph Title | Science History Institute |
| Open Graph Description | The Science History Institute is a free museum and library that collects, preserves, interprets, and shares the stories behind the science. |
| Open Graph Image | https://www.sciencehistory.org/wp-content/uploads/2023/06... |
| Twitter Card | summary_large_image |
| Twitter Title | Science History Institute |
| Twitter Description | The Science History Institute is a free museum and library that collects, preserves, interprets, and shares the stories behind the science. |
| Twitter Image | https://www.sciencehistory.org/wp-content/uploads/2023/06... |
Title Science History Institute Meta Description The Science History Institute is a free museum and library that collects, preserves, interprets, and shares the stories behind the science. Canonical https://www.sciencehistory.org/ Robots Meta index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1 Open Graph Title Science History Institute Open Graph Description The Science History Institute is a free museum and library that collects, preserves, interprets, and shares the stories behind the science. Open Graph Image https://www.sciencehistory.org/wp-content/uploads/2023/06... Twitter Card summary_large_image Twitter Title Science History Institute Twitter Description The Science History Institute is a free museum and library that collects, preserves, interprets, and shares the stories behind the science. Twitter Image https://www.sciencehistory.org/wp-content/uploads/2023/06... Detected Technologies
| Technology | WordPress jQuery Google Analytics Google Tag Manager Nginx PHP Hotjar |
Technology WordPress jQuery Google Analytics Google Tag Manager Nginx PHP Hotjar
HTTP Headers
| Content-encoding
| gzip |
| Content-type
| text/html; charset=UTF-8 |
| Link
| ; rel=shortlink |
| Server
| nginx |
| Strict-transport-security
| max-age=300 |
| X-pantheon-styx-hostname
| styx-us-a-7ffbcf568d-5z2qs |
| X-pingback
| https://www.sciencehistory.org/xmlrpc.php |
| X-styx-req-id
| f23f90bd-871c-11f1-8c43-b217c8744d77 |
| Date
| Fri, 24 Jul 2026 05:03:46 GMT |
| X-served-by
| cache-chi-kigq8000174-CHI, cache-par-lfpg1960063-PAR |
| X-cache
| HIT, HIT |
| X-cache-hits
| 1, 1 |
| X-timer
| S1784869426.273555,VS0,VE3 |
| Vary
| Accept-Encoding, Cookie, Cookie |
| Age
| 40 |
| Accept-ranges
| bytes |
| Via
| 1.1 varnish, 1.1 varnish |
| Content-length
| 58102 |
Meta Tags
| Viewport | width=device-width, initial-scale=1 |
| Robots | index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1 |
| Description | The Science History Institute is a free museum and library that collects, preserves, interprets, and shares the stories behind the science. |
| Article:publisher | https://www.facebook.com/SciHistoryOrg/ |
| Article:modified_time | 2026-07-23T13:13:26+00:00 |
| Msapplication-TileImage |  |
Content-encoding gzip
Content-type text/html; charset=UTF-8
Link ; rel=shortlink
Server nginx
Strict-transport-security max-age=300
X-pantheon-styx-hostname styx-us-a-7ffbcf568d-5z2qs
X-pingback https://www.sciencehistory.org/xmlrpc.php
X-styx-req-id f23f90bd-871c-11f1-8c43-b217c8744d77
Date Fri, 24 Jul 2026 05:03:46 GMT
X-served-by cache-chi-kigq8000174-CHI, cache-par-lfpg1960063-PAR
X-cache HIT, HIT
X-cache-hits 1, 1
X-timer S1784869426.273555,VS0,VE3
Vary Accept-Encoding, Cookie, Cookie
Age 40
Accept-ranges bytes
Via 1.1 varnish, 1.1 varnish
Content-length 58102
