Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 151.101.193.55 |
| CDN | CDN (HIT, HIT, MISS, MISS-CLUSTER) |
| Compression | gzip |
|
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 151.101.193.55
CDN CDN (HIT, HIT, MISS, MISS-CLUSTER)
Compression gzip
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://scientificamerican.com:443 | 301 | HTTP/2 301 |
| 2 | https://www.scientificamerican.com/ | 200 | HTTP/2 200 |
#1 URL https://scientificamerican.com:443
HTTP Status Code 301
Status HTTP/2 301
#2 URL https://www.scientificamerican.com/
HTTP Status Code 200
Status HTTP/2 200
Performance
| DNS Lookup | 6.2 ms |
| TCP Connect | 7.4 ms |
| TLS Handshake | 5.8 ms |
| Time To First Byte (TTFB) | 98.4 ms |
| Content Download | 5 ms |
| Total Response Time | 103.4 ms |
DNS Lookup 6.2 ms
TCP Connect 7.4 ms
TLS Handshake 5.8 ms
Time To First Byte (TTFB) 98.4 ms
Content Download 5 ms
Total Response Time 103.4 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✔ max-age=600; includeSubDomains |
| CSP | ✔ Configured |
| X-Frame-Options | ⚠ Not configured |
| 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=600; includeSubDomains
CSP ✔ Configured
X-Frame-Options ⚠ Not configured
X-Content-Type-Options ✔ nosniff
Referrer Policy strict-origin-when-cross-origin
Permissions Policy ✔ Configured
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
| Title | Scientific American |
| Meta Description | Scientific American is the essential guide to the most awe-inspiring advances in science and technology, explaining how they change our understanding of the world and shape our lives. |
| Canonical | https://www.scientificamerican.com/ |
| Robots Meta | max-image-preview:standard |
| Open Graph Title | Scientific American |
| Open Graph Description | Scientific American is the essential guide to the most awe-inspiring advances in science and technology, explaining how they change our understanding of the world and shape our lives. |
| Open Graph Image | https://www.scientificamerican.com/static/sciam-mark.jpg |
| Twitter Card | summary_large_image |
| Twitter Title | Scientific American |
| Twitter Description | Scientific American is the essential guide to the most awe-inspiring advances in science and technology, explaining how they change our understanding of the world and shape our lives. |
| Twitter Image | https://www.scientificamerican.com/static/sciam-mark.jpg |
Title Scientific American Meta Description Scientific American is the essential guide to the most awe-inspiring advances in science and technology, explaining how they change our understanding of the world and shape our lives. Canonical https://www.scientificamerican.com/ Robots Meta max-image-preview:standard Open Graph Title Scientific American Open Graph Description Scientific American is the essential guide to the most awe-inspiring advances in science and technology, explaining how they change our understanding of the world and shape our lives. Open Graph Image https://www.scientificamerican.com/static/sciam-mark.jpg Twitter Card summary_large_image Twitter Title Scientific American Twitter Description Scientific American is the essential guide to the most awe-inspiring advances in science and technology, explaining how they change our understanding of the world and shape our lives. Twitter Image https://www.scientificamerican.com/static/sciam-mark.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; charset=utf-8 |
| Content-encoding
| gzip |
| X-envoy-upstream-service-time
| 57 |
| Content-security-policy
| frame-ancestors 'self' |
| Via
| 1.1 varnish, 1.1 varnish |
| Accept-ranges
| bytes |
| Age
| 0 |
| Date
| Fri, 24 Jul 2026 02:24:21 GMT |
| Set-cookie
| sciam_testgroup2=1; domain=www.scientificamerican.com; expires=Sat, 24 Jul 2027 02:24:21 GMT; path=/; Secure; HttpOnly; SameSite=Lax |
| X-served-by
| cache-iad-khef600087-IAD, cache-par-lfpb1150037-PAR |
| X-cache-hits
| 7, 0 |
| Vary
| X-Sciam-Testgroup2, Accept-Encoding |
| X-cache
| HIT, HIT, MISS, MISS-CLUSTER |
| Cache-control
| no-store |
| Cross-origin-opener-policy
| same-origin-allow-popups |
| Strict-transport-security
| max-age=600; includeSubDomains |
| Permissions-policy
| microphone=self, camera=self |
| Referrer-policy
| strict-origin-when-cross-origin |
| X-content-type-options
| nosniff |
| Content-length
| 115296 |
Meta Tags
| Theme-color | #fff |
| Robots | max-image-preview:standard |
| Description | Scientific American is the essential guide to the most awe-inspiring advances in science and technology, explaining how they change our understanding of the world and shape our lives. |
| Viewport | width=device-width, initial-scale=1.0 |
Content-type text/html; charset=utf-8
Content-encoding gzip
X-envoy-upstream-service-time 57
Content-security-policy frame-ancestors 'self'
Via 1.1 varnish, 1.1 varnish
Accept-ranges bytes
Age 0
Date Fri, 24 Jul 2026 02:24:21 GMT
Set-cookie sciam_testgroup2=1; domain=www.scientificamerican.com; expires=Sat, 24 Jul 2027 02:24:21 GMT; path=/; Secure; HttpOnly; SameSite=Lax
X-served-by cache-iad-khef600087-IAD, cache-par-lfpb1150037-PAR
X-cache-hits 7, 0
Vary X-Sciam-Testgroup2, Accept-Encoding
X-cache HIT, HIT, MISS, MISS-CLUSTER
Cache-control no-store
Cross-origin-opener-policy same-origin-allow-popups
Strict-transport-security max-age=600; includeSubDomains
Permissions-policy microphone=self, camera=self
Referrer-policy strict-origin-when-cross-origin
X-content-type-options nosniff
Content-length 115296
