Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 141.193.213.20 |
| Server Software | cloudflare |
| CDN | Cloudflare |
| Compression | gzip |
|
🔒 🟡 Mixed Content (5 HTTP resources) | The page is served over HTTPS but loads 5 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 141.193.213.20
Server Software cloudflare
CDN Cloudflare
Compression gzip
🔒 🟡 Mixed Content (5 HTTP resources) The page is served over HTTPS but loads 5 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://cshl.edu:443 | 301 | HTTP/2 301 |
| 2 | https://www.cshl.edu/ | 200 | HTTP/2 200 |
#1 URL https://cshl.edu:443
HTTP Status Code 301
Status HTTP/2 301
#2 URL https://www.cshl.edu/
HTTP Status Code 200
Status HTTP/2 200
Performance
| DNS Lookup | 101.3 ms |
| TCP Connect | 103.1 ms |
| TLS Handshake | 8.7 ms |
| Time To First Byte (TTFB) | 300.1 ms |
| Content Download | 15 ms |
| Total Response Time | 315.1 ms |
DNS Lookup 101.3 ms
TCP Connect 103.1 ms
TLS Handshake 8.7 ms
Time To First Byte (TTFB) 300.1 ms
Content Download 15 ms
Total Response Time 315.1 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 | CSHL Home Page | Cold Spring Harbor Laboratory |
| Canonical | https://www.cshl.edu/ |
| Robots Meta | index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1 |
| Open Graph Title | CSHL Home Page | Cold Spring Harbor Laboratory |
| Twitter Card | summary_large_image |
Title CSHL Home Page | Cold Spring Harbor Laboratory
Canonical https://www.cshl.edu/
Robots Meta index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1
Open Graph Title CSHL Home Page | Cold Spring Harbor Laboratory
Twitter Card summary_large_image
Detected Technologies
| Technology | WordPress Bootstrap jQuery Google Analytics Google Tag Manager Cloudflare PHP |
Technology WordPress Bootstrap jQuery Google Analytics Google Tag Manager Cloudflare PHP
HTTP Headers
| Date
| Wed, 19 Aug 2026 22:16:52 GMT |
| Content-type
| text/html; charset=UTF-8 |
| Server
| cloudflare |
| Vary
| Accept-Encoding,Cookie |
| Accept-ch
| Sec-CH-UA-Mobile |
| Set-cookie
| __cf_bm=b5S6_rpVJxcBHiPQvCbDVMRz16IScV56HtSLTiJ5iGU-1787177811.8629189-1.0.1.1-DiM4sqY67lyspIuGGrmcaDK6YoWjaTCHI81lbnvLKOOPbC7S5w4qHyJY2pT.x3qa66ChLI4HGzy.26Gwtp7k6dhg4hvwUUdA_pGm2c_g.J34pNTBVg6SCPrcLI5qbq36; HttpOnly; SameSite=None; Secure; Path=/; Domain=www.cshl.edu; Expires=Wed, 19 Aug 2026 22:46:52 GMT |
| Link
| ; rel=shortlink |
| X-cache-ctime
| 1787176206 |
| X-nitro-cache
| HIT |
| X-nitro-cache-from
| drop-in |
| X-nitro-rev
| 56d51fd |
| X-powered-by
| WP Engine |
| X-cacheable
| SHORT |
| Cache-control
| max-age=600, must-revalidate |
| X-cache
| HIT: 30 |
| X-cache-group
| normal |
| Last-modified
| Wed, 19 Aug 2026 22:16:52 GMT |
| Cf-cache-status
| MISS |
| Content-encoding
| gzip |
| Cf-ray
| a2dc866c29777e9b-CDG |
| Alt-svc
| h3=":443"; ma=86400 |
Meta Tags
| Viewport | width=device-width, initial-scale=1 |
| Msapplication-config | https://www.cshl.edu/wp-content/themes/cshl-coresite/favicons/browserconfig.xml |
| Theme-color | #ffffff |
| Robots | index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1 |
| Article:publisher | https://www.facebook.com/cshlnews |
| Article:modified_time | 2026-08-19T18:21:34+00:00 |
| Google-site-verification | j9bYcvxrrD52FSJcinUACq7SKqI2MxNdrDti10VSy5A |
| Generator | NitroPack |
Date Wed, 19 Aug 2026 22:16:52 GMT
Content-type text/html; charset=UTF-8
Server cloudflare
Vary Accept-Encoding,Cookie
Accept-ch Sec-CH-UA-Mobile
Set-cookie __cf_bm=b5S6_rpVJxcBHiPQvCbDVMRz16IScV56HtSLTiJ5iGU-1787177811.8629189-1.0.1.1-DiM4sqY67lyspIuGGrmcaDK6YoWjaTCHI81lbnvLKOOPbC7S5w4qHyJY2pT.x3qa66ChLI4HGzy.26Gwtp7k6dhg4hvwUUdA_pGm2c_g.J34pNTBVg6SCPrcLI5qbq36; HttpOnly; SameSite=None; Secure; Path=/; Domain=www.cshl.edu; Expires=Wed, 19 Aug 2026 22:46:52 GMT
Link ; rel=shortlink
X-cache-ctime 1787176206
X-nitro-cache HIT
X-nitro-cache-from drop-in
X-nitro-rev 56d51fd
X-powered-by WP Engine
X-cacheable SHORT
Cache-control max-age=600, must-revalidate
X-cache HIT: 30
X-cache-group normal
Last-modified Wed, 19 Aug 2026 22:16:52 GMT
Cf-cache-status MISS
Content-encoding gzip
Cf-ray a2dc866c29777e9b-CDG
Alt-svc h3=":443"; ma=86400
