Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 178.128.137.126 |
| Server Software | openresty |
| CDN | CDN (MISS, HIT, HIT) |
| Compression | gzip |
|
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. |
|
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 178.128.137.126
Server Software openresty
CDN CDN (MISS, HIT, HIT)
Compression gzip
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.
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://skeptic.com:443 | 302 | HTTP/2 302 |
| 2 | https://www.skeptic.com/ | 200 | HTTP/2 200 |
#1 URL https://skeptic.com:443
HTTP Status Code 302
Status HTTP/2 302
#2 URL https://www.skeptic.com/
HTTP Status Code 200
Status HTTP/2 200
Performance
| DNS Lookup | 10.6 ms |
| TCP Connect | 11.4 ms |
| TLS Handshake | 5.6 ms |
| Time To First Byte (TTFB) | 22.3 ms |
| Content Download | 2.9 ms |
| Total Response Time | 25.1 ms |
DNS Lookup 10.6 ms
TCP Connect 11.4 ms
TLS Handshake 5.6 ms
Time To First Byte (TTFB) 22.3 ms
Content Download 2.9 ms
Total Response Time 25.1 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✘ Not configured |
| CSP | ⚠ Not configured |
| X-Frame-Options | ⚠ Not configured |
| X-Content-Type-Options | ⚠ Not configured |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✘ Not configured
CSP ⚠ Not configured
X-Frame-Options ⚠ Not configured
X-Content-Type-Options ⚠ Not configured
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
Detected Technologies
| Technology | Google Analytics Google Tag Manager Node.js Stripe |
Technology Google Analytics Google Tag Manager Node.js Stripe
HTTP Headers
| Content-encoding
| gzip |
| Via
| 1.1 varnish, 1.1 varnish, 1.1 varnish |
| Cache-control
| public, max-age=0 |
| Etag
| W/"3e1f1-hASEXWUiEybkUTW4CqCvEJfcxnA" |
| Server
| openresty |
| Content-type
| text/html; charset=utf-8 |
| Status
| 200 OK |
| Accept-ranges
| bytes |
| Age
| 3902 |
| Date
| Tue, 21 Jul 2026 13:45:17 GMT |
| X-served-by
| cache-ams-eham8680022-AMS, cache-ams-eham8680022-AMS, cache-ams-eham8680022-AMS, cache-par-lfpg1960073-PAR |
| X-cache
| MISS, HIT, HIT |
| X-cache-hits
| 0, 22, 0 |
| X-timer
| S1784641518.785649,VS0,VE3 |
| Vary
| Cookie, Accept-Encoding |
| X-request-id
| f2ddfbd5-494b-4a19-bde1-b4bd5a5984f1 |
| Ghost-fastly
| true;production |
| Alt-svc
| clear |
| Content-length
| 48648 |
Meta Tags
| Viewport | width=device-width, initial-scale=1 |
| Description | Popular Science. Nonpartisan. Reality-Based. |
| Referrer | no-referrer-when-downgrade |
| Generator | Ghost 6.54 |
| Refresh | 0;URL=/disabled_js |
Content-encoding gzip
Via 1.1 varnish, 1.1 varnish, 1.1 varnish
Cache-control public, max-age=0
Etag W/"3e1f1-hASEXWUiEybkUTW4CqCvEJfcxnA"
Server openresty
Content-type text/html; charset=utf-8
Status 200 OK
Accept-ranges bytes
Age 3902
Date Tue, 21 Jul 2026 13:45:17 GMT
X-served-by cache-ams-eham8680022-AMS, cache-ams-eham8680022-AMS, cache-ams-eham8680022-AMS, cache-par-lfpg1960073-PAR
X-cache MISS, HIT, HIT
X-cache-hits 0, 22, 0
X-timer S1784641518.785649,VS0,VE3
Vary Cookie, Accept-Encoding
X-request-id f2ddfbd5-494b-4a19-bde1-b4bd5a5984f1
Ghost-fastly true;production
Alt-svc clear
Content-length 48648
