Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 172.66.167.82 |
| Server Software | nginx |
| CDN | CDN (HIT, HIT) |
| Compression | gzip |
|
🔒 🟡 Mixed Content (2 HTTP resources) | The page is served over HTTPS but loads 2 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 172.66.167.82
Server Software nginx
CDN CDN (HIT, HIT)
Compression gzip
🔒 🟡 Mixed Content (2 HTTP resources) The page is served over HTTPS but loads 2 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://hypothes.is:443 | 302 | HTTP/2 302 |
| 2 | https://web.hypothes.is | 200 | HTTP/2 200 |
#1 URL https://hypothes.is:443
HTTP Status Code 302
Status HTTP/2 302
#2 URL https://web.hypothes.is
HTTP Status Code 200
Status HTTP/2 200
Performance
| DNS Lookup | 8.4 ms |
| TCP Connect | 9.2 ms |
| TLS Handshake | 5.1 ms |
| Time To First Byte (TTFB) | 17.3 ms |
| Content Download | 2.6 ms |
| Total Response Time | 19.9 ms |
DNS Lookup 8.4 ms
TCP Connect 9.2 ms
TLS Handshake 5.1 ms
Time To First Byte (TTFB) 17.3 ms
Content Download 2.6 ms
Total Response Time 19.9 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 | Hypothesis | The #1 Social Annotation Tool for Higher Education |
| Meta Description | Hypothesis is the leading social annotation platform trusted by 300+ institutions to boost student engagement, comprehension, and critical thinking — seamlessly integrated into your LMS. |
| Canonical | https://web.hypothes.is/ |
| Robots Meta | index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1 |
| Open Graph Title | Hypothesis | The #1 Social Annotation Tool for Higher Education |
| Open Graph Description | Hypothesis is the leading social annotation platform trusted by 300+ institutions to boost student engagement, comprehension, and critical thinking — seamlessly integrated into your LMS. |
| Open Graph Image | https://d242fdlp0qlcia.cloudfront.net/uploads/2020/05/251... |
| Twitter Card | summary_large_image |
Title Hypothesis | The #1 Social Annotation Tool for Higher Education Meta Description Hypothesis is the leading social annotation platform trusted by 300+ institutions to boost student engagement, comprehension, and critical thinking — seamlessly integrated into your LMS. Canonical https://web.hypothes.is/ Robots Meta index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1 Open Graph Title Hypothesis | The #1 Social Annotation Tool for Higher Education Open Graph Description Hypothesis is the leading social annotation platform trusted by 300+ institutions to boost student engagement, comprehension, and critical thinking — seamlessly integrated into your LMS. Open Graph Image https://d242fdlp0qlcia.cloudfront.net/uploads/2020/05/251... Twitter Card summary_large_image Detected Technologies
| Technology | WordPress Bootstrap jQuery Google Analytics Google Tag Manager Cloudflare Nginx PHP HubSpot |
Technology WordPress Bootstrap jQuery Google Analytics Google Tag Manager Cloudflare Nginx PHP HubSpot
HTTP Headers
| Cache-control
| public, max-age=14400 |
| 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-55f5b7b84b-vfsjs |
| X-styx-req-id
| dbe41bb8-9c2f-11f1-b897-5aacc06d68b8 |
| X-tec-api-origin
| https://web.hypothes.is |
| X-tec-api-root
| https://web.hypothes.is/wp-json/tribe/events/v1/ |
| X-tec-api-version
| v1 |
| Date
| Thu, 20 Aug 2026 04:08:34 GMT |
| X-served-by
| cache-chi-kmdw8640026-CHI, cache-par-lfpg1960078-PAR |
| X-cache
| HIT, HIT |
| X-cache-hits
| 43, 0 |
| X-timer
| S1787198914.302153,VS0,VE2 |
| Vary
| Accept-Encoding, Cookie, Cookie |
| Age
| 12430 |
| Accept-ranges
| bytes |
| Via
| 1.1 varnish, 1.1 varnish |
| Content-length
| 82244 |
Meta Tags
| Viewport | width=device-width, initial-scale=1 |
| Robots | index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1 |
| Description | Hypothesis is the leading social annotation platform trusted by 300+ institutions to boost student engagement, comprehension, and critical thinking — seamlessly integrated into your LMS. |
| Article:publisher | https://www.facebook.com/myhypothesis/ |
| Article:modified_time | 2026-02-26T12:16:14+00:00 |
| Google-site-verification | IQziRGC0htO0ErVm3mubmPRGZsNKxnRYSju4oh16U_M |
| Generator | Heroic Knowledge Base v3.4.1 |
| Tec-api-version | v1 |
| Tec-api-origin | https://web.hypothes.is |
Cache-control public, max-age=14400
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-55f5b7b84b-vfsjs
X-styx-req-id dbe41bb8-9c2f-11f1-b897-5aacc06d68b8
X-tec-api-origin https://web.hypothes.is
X-tec-api-root https://web.hypothes.is/wp-json/tribe/events/v1/
X-tec-api-version v1
Date Thu, 20 Aug 2026 04:08:34 GMT
X-served-by cache-chi-kmdw8640026-CHI, cache-par-lfpg1960078-PAR
X-cache HIT, HIT
X-cache-hits 43, 0
X-timer S1787198914.302153,VS0,VE2
Vary Accept-Encoding, Cookie, Cookie
Age 12430
Accept-ranges bytes
Via 1.1 varnish, 1.1 varnish
Content-length 82244
