Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 13.227.231.71 |
| Server Software | AmazonS3 |
| CDN | CDN (Hit from cloudfront) |
| Compression | gzip |
|
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 13.227.231.71
Server Software AmazonS3
CDN CDN (Hit from cloudfront)
Compression gzip
ℹ 🔵 Missing Content Security Policy CSP is not configured. It helps prevent XSS attacks and content injection.
Performance
| DNS Lookup | 150.1 ms |
| TCP Connect | 153.6 ms |
| TLS Handshake | 5.3 ms |
| Time To First Byte (TTFB) | 230.4 ms |
| Content Download | 4.9 ms |
| Total Response Time | 235.2 ms |
DNS Lookup 150.1 ms
TCP Connect 153.6 ms
TLS Handshake 5.3 ms
Time To First Byte (TTFB) 230.4 ms
Content Download 4.9 ms
Total Response Time 235.2 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✔ max-age=2678400; includeSubDomains |
| CSP | ⚠ Not configured |
| X-Frame-Options | ✔ SAMEORIGIN |
| X-Content-Type-Options | ✔ nosniff |
| Referrer Policy | strict-origin-when-cross-origin |
| Permissions Policy | ✔ Configured |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✔ max-age=2678400; includeSubDomains
CSP ⚠ Not configured
X-Frame-Options ✔ SAMEORIGIN
X-Content-Type-Options ✔ nosniff
Referrer Policy strict-origin-when-cross-origin
Permissions Policy ✔ Configured
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
| Title | Antithesis |
| Meta Description | Antithesis is an autonomous software testing platform that finds the bugs others miss. |
| Canonical | https://antithesis.com/ |
| Open Graph Title | Antithesis |
| Open Graph Description | Antithesis is an autonomous software testing platform that finds the bugs others miss. |
| Open Graph Image | https://antithesis.com/_astro/og-default.y5LYasQU_2uXgUA.jpg |
| Twitter Card | summary_large_image |
| Twitter Title | Antithesis |
| Twitter Description | Antithesis is an autonomous software testing platform that finds the bugs others miss. |
| Twitter Image | https://antithesis.com/_astro/og-default.y5LYasQU_2uXgUA.jpg |
Title Antithesis Meta Description Antithesis is an autonomous software testing platform that finds the bugs others miss. Canonical https://antithesis.com/ Open Graph Title Antithesis Open Graph Description Antithesis is an autonomous software testing platform that finds the bugs others miss. Open Graph Image https://antithesis.com/_astro/og-default.y5LYasQU_2uXgUA.jpg Twitter Card summary_large_image Twitter Title Antithesis Twitter Description Antithesis is an autonomous software testing platform that finds the bugs others miss. Twitter Image https://antithesis.com/_astro/og-default.y5LYasQU_2uXgUA.jpg Detected Technologies
| Technology | Google Analytics Google Tag Manager Node.js |
Technology Google Analytics Google Tag Manager Node.js
HTTP Headers
| Content-type
| text/html |
| Last-modified
| Thu, 20 Aug 2026 13:47:22 GMT |
| Server
| AmazonS3 |
| X-amz-server-side-encryption
| AES256 |
| X-amz-version-id
| fU6JX5O0aF6Zh_nNfAIzzGBEhTq_7acO |
| Content-encoding
| gzip |
| Date
| Sat, 22 Aug 2026 23:56:48 GMT |
| Etag
| W/"59ed6159bf836c9e1de5411d68eb9ab0" |
| Vary
| Accept-Encoding |
| X-cache
| Hit from cloudfront |
| Via
| 1.1 b823c70c226787b916972c4f07ae29f6.cloudfront.net (CloudFront) |
| X-amz-cf-pop
| CDG50-P5 |
| X-amz-cf-id
| 4OkrLKXwzVIFwj0rSMqIhhz35eojgErhDPROvj6fa4tK5gtfn0x2gQ== |
| Age
| 17623 |
| X-frame-options
| SAMEORIGIN |
| Referrer-policy
| strict-origin-when-cross-origin |
| X-content-type-options
| nosniff |
| Strict-transport-security
| max-age=2678400; includeSubDomains |
| Permissions-policy
| microphone=(), geolocation=() |
Meta Tags
| Viewport | width=device-width,initial-scale=1 |
| Generator | Astro v6.4.0 |
| Description | Antithesis is an autonomous software testing platform that finds the bugs others miss. |
| Mobile-web-app-capable | yes |
| Theme-color | #16031b |
| Application-name | Antithesis |
| Apple-mobile-web-app-capable | yes |
| Apple-mobile-web-app-status-bar-style | black-translucent |
| Apple-mobile-web-app-title | Antithesis |
| Msapplication-TileColor | #16031b |
| Msapplication-TileImage |  |
| Msapplication-config | /browserconfig.xml |
Content-type text/html
Last-modified Thu, 20 Aug 2026 13:47:22 GMT
Server AmazonS3
X-amz-server-side-encryption AES256
X-amz-version-id fU6JX5O0aF6Zh_nNfAIzzGBEhTq_7acO
Content-encoding gzip
Date Sat, 22 Aug 2026 23:56:48 GMT
Etag W/"59ed6159bf836c9e1de5411d68eb9ab0"
Vary Accept-Encoding
X-cache Hit from cloudfront
Via 1.1 b823c70c226787b916972c4f07ae29f6.cloudfront.net (CloudFront)
X-amz-cf-pop CDG50-P5
X-amz-cf-id 4OkrLKXwzVIFwj0rSMqIhhz35eojgErhDPROvj6fa4tK5gtfn0x2gQ==
Age 17623
X-frame-options SAMEORIGIN
Referrer-policy strict-origin-when-cross-origin
X-content-type-options nosniff
Strict-transport-security max-age=2678400; includeSubDomains
Permissions-policy microphone=(), geolocation=()
