Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 13.227.173.66 |
| Server Software | nginx |
| CDN | CDN (Miss from cloudfront) |
| Compression | gzip |
|
🔒 🟡 Mixed Content (1 HTTP resources) | The page is served over HTTPS but loads 1 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. |
HTTP Status Code 200
HTTP Version HTTP/1.1
HTTPS ✔ Available
IP Address 13.227.173.66
Server Software nginx
CDN CDN (Miss from cloudfront)
Compression gzip
🔒 🟡 Mixed Content (1 HTTP resources) The page is served over HTTPS but loads 1 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.
Redirect Chain
| # | URL | HTTP Status Code | Status |
| 1 | https://semanticscholar.org:443 | 301 | HTTP/1.1 301 Moved Permanently |
| 2 | https://www.semanticscholar.org/ | 200 | HTTP/1.1 200 OK |
#1 URL https://semanticscholar.org:443
HTTP Status Code 301
Status HTTP/1.1 301 Moved Permanently
#2 URL https://www.semanticscholar.org/
HTTP Status Code 200
Status HTTP/1.1 200 OK
Performance
| DNS Lookup | 10.5 ms |
| TCP Connect | 11.5 ms |
| TLS Handshake | 5.1 ms |
| Time To First Byte (TTFB) | 167.2 ms |
| Content Download | 134.8 ms |
| Total Response Time | 302 ms |
DNS Lookup 10.5 ms
TCP Connect 11.5 ms
TLS Handshake 5.1 ms
Time To First Byte (TTFB) 167.2 ms
Content Download 134.8 ms
Total Response Time 302 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✘ Not configured |
| CSP | ⚠ Not configured |
| X-Frame-Options | ✔ SAMEORIGIN |
| X-Content-Type-Options | ⚠ Not configured |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✘ Not configured
CSP ⚠ Not configured
X-Frame-Options ✔ SAMEORIGIN
X-Content-Type-Options ⚠ Not configured
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
| Title | Semantic Scholar | AI-Powered Research Tool |
| Meta Description | Semantic Scholar uses groundbreaking AI and engineering to understand the semantics of scientific literature to help Scholars discover relevant research. |
| Canonical | https://www.semanticscholar.org/ |
| Robots Meta | noarchive |
| Open Graph Title | Semantic Scholar | AI-Powered Research Tool |
| Open Graph Description | Semantic Scholar uses groundbreaking AI and engineering to understand the semantics of scientific literature to help Scholars discover relevant research. |
| Open Graph Image | https://www.semanticscholar.org/img/semantic_scholar_og.png |
| Twitter Card | summary_large_image |
| Twitter Title | Semantic Scholar | AI-Powered Research Tool |
| Twitter Description | Semantic Scholar uses groundbreaking AI and engineering to understand the semantics of scientific literature to help Scholars discover relevant research. |
| Twitter Image | https://www.semanticscholar.org/img/semantic_scholar_og.png |
Title Semantic Scholar | AI-Powered Research Tool Meta Description Semantic Scholar uses groundbreaking AI and engineering to understand the semantics of scientific literature to help Scholars discover relevant research. Canonical https://www.semanticscholar.org/ Robots Meta noarchive Open Graph Title Semantic Scholar | AI-Powered Research Tool Open Graph Description Semantic Scholar uses groundbreaking AI and engineering to understand the semantics of scientific literature to help Scholars discover relevant research. Open Graph Image https://www.semanticscholar.org/img/semantic_scholar_og.png Twitter Card summary_large_image Twitter Title Semantic Scholar | AI-Powered Research Tool Twitter Description Semantic Scholar uses groundbreaking AI and engineering to understand the semantics of scientific literature to help Scholars discover relevant research. Twitter Image https://www.semanticscholar.org/img/semantic_scholar_og.png Detected Technologies
| Technology | Google Analytics Google Tag Manager Nginx HubSpot |
Technology Google Analytics Google Tag Manager Nginx HubSpot
HTTP Headers
| Content-Type
| text/html; charset=utf-8 |
| Transfer-Encoding
| chunked |
| Connection
| keep-alive |
| Date
| Tue, 21 Jul 2026 09:44:03 GMT |
| X-Frame-Options
| SAMEORIGIN |
| Content-Encoding
| gzip |
| Server
| nginx |
| Vary
| Accept-Encoding |
| Cache-Control
| max-age=0, no-cache, no-store |
| Expires
| -1 |
| X-Cache
| Miss from cloudfront |
| Via
| 1.1 ffee1d974bd2e9d67d5610f7ffb32b32.cloudfront.net (CloudFront) |
| X-Amz-Cf-Pop
| CDG54-P2 |
| X-Amz-Cf-Id
| FhjMgCV7bSi0qo1Whb15v4zU8ommB-iykZ6-X6B1os__maNWBzYB9A== |
Meta Tags
| Robots | noarchive |
| Viewport | width=device-width,initial-scale=1 |
| S2-ui-version | 54fe3bab156d723c26ac8bb1a87dd45f1008da1c |
| Description | Semantic Scholar uses groundbreaking AI and engineering to understand the semantics of scientific literature to help Scholars discover relevant research. |
| Application-name | |
| Msapplication-TileColor | #FFFFFF |
| Msapplication-TileImage |  |
| Msapplication-square70x70logo |  |
| Msapplication-square150x150logo |  |
| Msapplication-wide310x150logo |  |
| Msapplication-square310x310logo |  |
Content-Type text/html; charset=utf-8
Transfer-Encoding chunked
Connection keep-alive
Date Tue, 21 Jul 2026 09:44:03 GMT
X-Frame-Options SAMEORIGIN
Content-Encoding gzip
Server nginx
Vary Accept-Encoding
Cache-Control max-age=0, no-cache, no-store
Expires -1
X-Cache Miss from cloudfront
Via 1.1 ffee1d974bd2e9d67d5610f7ffb32b32.cloudfront.net (CloudFront)
X-Amz-Cf-Pop CDG54-P2
X-Amz-Cf-Id FhjMgCV7bSi0qo1Whb15v4zU8ommB-iykZ6-X6B1os__maNWBzYB9A==
