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, MISS, MISS) |
| Compression | gzip |
|
🔒 🟡 Mixed Content (3 HTTP resources) | The page is served over HTTPS but loads 3 resource(s) over HTTP. This may be blocked in modern browsers. |
|
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, MISS, MISS)
Compression gzip
🔒 🟡 Mixed Content (3 HTTP resources) The page is served over HTTPS but loads 3 resource(s) over HTTP. This may be blocked in modern browsers.
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://salk.edu:443 | 301 | HTTP/2 301 |
| 2 | https://www.salk.edu/ | 200 | HTTP/2 200 |
#1 URL https://salk.edu:443
HTTP Status Code 301
Status HTTP/2 301
#2 URL https://www.salk.edu/
HTTP Status Code 200
Status HTTP/2 200
Performance
| DNS Lookup | 202.7 ms |
| TCP Connect | 203.4 ms |
| TLS Handshake | 6.9 ms |
| Time To First Byte (TTFB) | 222.5 ms |
| Content Download | 2.1 ms |
| Total Response Time | 224.6 ms |
DNS Lookup 202.7 ms
TCP Connect 203.4 ms
TLS Handshake 6.9 ms
Time To First Byte (TTFB) 222.5 ms
Content Download 2.1 ms
Total Response Time 224.6 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 | Salk Institute – Where Cures Begin |
| Meta Description | THE POWER OF SCIENCE - We explore the very foundations of life for the benefit of all. |
| Canonical | https://www.salk.edu/ |
| Robots Meta | index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1 |
| Open Graph Description | THE POWER OF SCIENCE - We explore the very foundations of life for the benefit of all. |
| Open Graph Image | https://www.salk.edu/wp-content/uploads/2023/03/salk-inst... |
| Twitter Card | summary_large_image |
Title Salk Institute – Where Cures Begin Meta Description THE POWER OF SCIENCE - We explore the very foundations of life for the benefit of all. Canonical https://www.salk.edu/ Robots Meta index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1 Open Graph Description THE POWER OF SCIENCE - We explore the very foundations of life for the benefit of all. Open Graph Image https://www.salk.edu/wp-content/uploads/2023/03/salk-inst... Twitter Card summary_large_image Detected Technologies
| Technology | WordPress Bootstrap jQuery Google Analytics Google Tag Manager Nginx PHP |
Technology WordPress Bootstrap jQuery Google Analytics Google Tag Manager Nginx PHP
HTTP Headers
| Cache-control
| public, max-age=604800 |
| 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-js5mq |
| X-styx-req-id
| 59f398a3-8ad6-11f1-b006-02cfe00295af |
| Age
| 61948 |
| Accept-ranges
| bytes |
| Via
| 1.1 varnish, 1.1 varnish, 1.1 varnish, 1.1 varnish |
| Date
| Wed, 29 Jul 2026 16:00:14 GMT |
| X-served-by
| cache-chi-klot8100070-CHI, cache-par-lfpg1960053-PAR, cache-par-lfpg1960070-PAR, cache-par-lfpg1960070-PAR |
| X-cache
| HIT, HIT, MISS, MISS |
| X-cache-hits
| 6, 364, 0, 0 |
| X-timer
| S1785340815.909507,VS0,VE10 |
| Vary
| Accept-Encoding, Cookie, Cookie |
| Content-length
| 67098 |
Meta Tags
| Refresh | 0;URL=/outdated-browser/ |
| Viewport | width=device-width, initial-scale=1.0 |
| Robots | index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1 |
| Description | THE POWER OF SCIENCE - We explore the very foundations of life for the benefit of all. |
| Article:modified_time | 2026-07-22T19:10:18+00:00 |
| Generator | Powered by Slider Revolution 6.7.58 - responsive, Mobile-Friendly Slider Plugin for WordPress with comfortable drag and drop interface. |
| Msapplication-TileImage |  |
Cache-control public, max-age=604800
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-js5mq
X-styx-req-id 59f398a3-8ad6-11f1-b006-02cfe00295af
Age 61948
Accept-ranges bytes
Via 1.1 varnish, 1.1 varnish, 1.1 varnish, 1.1 varnish
Date Wed, 29 Jul 2026 16:00:14 GMT
X-served-by cache-chi-klot8100070-CHI, cache-par-lfpg1960053-PAR, cache-par-lfpg1960070-PAR, cache-par-lfpg1960070-PAR
X-cache HIT, HIT, MISS, MISS
X-cache-hits 6, 364, 0, 0
X-timer S1785340815.909507,VS0,VE10
Vary Accept-Encoding, Cookie, Cookie
Content-length 67098
