Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 199.232.170.133 |
| Server Software | nginx/1.27.5 |
| CDN | CDN (MISS, HIT) |
| 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 199.232.170.133
Server Software nginx/1.27.5
CDN CDN (MISS, HIT)
Compression gzip
ℹ 🔵 Missing Content Security Policy CSP is not configured. It helps prevent XSS attacks and content injection.
Performance
| DNS Lookup | 4.1 ms |
| TCP Connect | 4.9 ms |
| TLS Handshake | 5.1 ms |
| Time To First Byte (TTFB) | 12.8 ms |
| Content Download | 4.5 ms |
| Total Response Time | 17.4 ms |
DNS Lookup 4.1 ms
TCP Connect 4.9 ms
TLS Handshake 5.1 ms
Time To First Byte (TTFB) 12.8 ms
Content Download 4.5 ms
Total Response Time 17.4 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✔ max-age=31557600 |
| CSP | ⚠ Not configured |
| X-Frame-Options | ✔ SAMEORIGIN |
| X-Content-Type-Options | ✔ nosniff |
| Referrer Policy | strict-origin-when-cross-origin |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✔ max-age=31557600
CSP ⚠ Not configured
X-Frame-Options ✔ SAMEORIGIN
X-Content-Type-Options ✔ nosniff
Referrer Policy strict-origin-when-cross-origin
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
| Title | Download_on_the_App_Store_Badge_US-UK_RGB_blk_4SVG_092917 |
| Meta Description | TED Talks are influential videos from expert speakers on education, business, science, tech and creativity, with subtitles in 100+ languages. Ideas free to stream and download. |
| Canonical | https://www.ted.com/ |
| Robots Meta | index, follow |
| Open Graph Title | TED: Ideas change everything |
| Open Graph Description | TED Talks are influential videos from expert speakers on education, business, science, tech and creativity, with subtitles in 100+ languages. Ideas free to stream and download. |
| Open Graph Image | https://pi.tedcdn.com/r/pl.tedcdn.com/social/ted-logo-fb.... |
| Twitter Card | summary_large_image |
Title Download_on_the_App_Store_Badge_US-UK_RGB_blk_4SVG_092917 Meta Description TED Talks are influential videos from expert speakers on education, business, science, tech and creativity, with subtitles in 100+ languages. Ideas free to stream and download. Canonical https://www.ted.com/ Robots Meta index, follow Open Graph Title TED: Ideas change everything Open Graph Description TED Talks are influential videos from expert speakers on education, business, science, tech and creativity, with subtitles in 100+ languages. Ideas free to stream and download. Open Graph Image https://pi.tedcdn.com/r/pl.tedcdn.com/social/ted-logo-fb.... Twitter Card summary_large_image Detected Technologies
| Technology | React Google Analytics Nginx Node.js Next.js |
Technology React Google Analytics Nginx Node.js Next.js
HTTP Headers
| Server
| nginx/1.27.5 |
| Content-type
| text/html; charset=utf-8 |
| X-frame-options
| SAMEORIGIN |
| X-xss-protection
| 1; mode=block |
| Cache-control
| s-maxage=180, stale-while-revalidate=31535820 |
| X-nextjs-cache
| HIT |
| Etag
| "s3ptupwzqqcgvd" |
| X-permitted-cross-domain-policies
| none |
| Content-encoding
| gzip |
| X-powered-by
| Zenith |
| Referrer-policy
| strict-origin-when-cross-origin |
| X-download-options
| noopen |
| X-content-type-options
| nosniff |
| Accept-ranges
| bytes |
| Age
| 92 |
| Date
| Wed, 22 Jul 2026 14:28:35 GMT |
| Via
| 1.1 varnish |
| X-served-by
| cache-par-lfpb1150089-PAR, cache-par-lfpg1960024-PAR |
| X-cache
| MISS, HIT |
| X-cache-hits
| 0, 0 |
| X-timer
| S1784730515.001836,VS0,VE1 |
| Vary
| Accept-Encoding |
| X-backend-selected
| Zenith |
| Strict-transport-security
| max-age=31557600 |
| Content-length
| 112572 |
Meta Tags
| Viewport | width=device-width, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no, initial-scale=1.0, viewport-fit=cover |
| Al:android:app_name | TED |
| Al:android:package | com.ted.android |
| Al:ios:app_name | TED |
| Al:ios:app_store_id | 376183339 |
| HandheldFriendly | True |
| MobileOptimized | 320 |
| Apple-mobile-web-app-title | TED Talks |
| Mobile-web-app-capable | yes |
| Apple-mobile-web-app-status-bar-style | black |
| Application-name | TED Talks |
| Msapplication-config | https://www.ted.com/browserconfig.xml |
| Msapplication-TileColor | #000000 |
| Cleartype | on |
| Fb:app_id | 201021956610141 |
| Rss-feed | https://www.ted.com/feeds/talks.rss |
| Theme-color | #EB0028 |
| Description | TED Talks are influential videos from expert speakers on education, business, science, tech and creativity, with subtitles in 100+ languages. Ideas free to stream and download. |
| Keywords | TED, Talks, Themes, Speakers, Technology, Entertainment, Design |
| Author | TED |
| Publisher | TED Conferences |
| Robots | index, follow |
Server nginx/1.27.5
Content-type text/html; charset=utf-8
X-frame-options SAMEORIGIN
X-xss-protection 1; mode=block
Cache-control s-maxage=180, stale-while-revalidate=31535820
X-nextjs-cache HIT
Etag "s3ptupwzqqcgvd"
X-permitted-cross-domain-policies none
Content-encoding gzip
X-powered-by Zenith
Referrer-policy strict-origin-when-cross-origin
X-download-options noopen
X-content-type-options nosniff
Accept-ranges bytes
Age 92
Date Wed, 22 Jul 2026 14:28:35 GMT
Via 1.1 varnish
X-served-by cache-par-lfpb1150089-PAR, cache-par-lfpg1960024-PAR
X-cache MISS, HIT
X-cache-hits 0, 0
X-timer S1784730515.001836,VS0,VE1
Vary Accept-Encoding
X-backend-selected Zenith
Strict-transport-security max-age=31557600
Content-length 112572
