Technical Information
| HTTP Status Code | 406 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 151.101.194.7 |
| CDN | CDN (MISS) |
|
🚫 🟡 HTTP 406 Error | The server returned a 406 error. Check the access configuration. |
|
ℹ 🔵 Missing X-Frame-Options | The site can be embedded in iframes by third parties (clickjacking risk). |
HTTP Status Code 406
HTTP Version HTTP/1.1
HTTPS ✔ Available
IP Address 151.101.194.7
CDN CDN (MISS)
🚫 🟡 HTTP 406 Error The server returned a 406 error. Check the access configuration.
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://thriftbooks.com:443 | 301 | HTTP/2 301 |
| 2 | https://www.thriftbooks.com/ | 406 | HTTP/2 406 |
#1 URL https://thriftbooks.com:443
HTTP Status Code 301
Status HTTP/2 301
#2 URL https://www.thriftbooks.com/
HTTP Status Code 406
Status HTTP/2 406
Performance
| DNS Lookup | 5.2 ms |
| TCP Connect | 5.9 ms |
| TLS Handshake | 11.3 ms |
| Time To First Byte (TTFB) | 58.3 ms |
| Content Download | 0.1 ms |
| Total Response Time | 58.4 ms |
DNS Lookup 5.2 ms
TCP Connect 5.9 ms
TLS Handshake 11.3 ms
Time To First Byte (TTFB) 58.3 ms
Content Download 0.1 ms
Total Response Time 58.4 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✔ max-age=3600; includeSubDomains |
| CSP | ✔ Configured |
| X-Frame-Options | ⚠ Not configured |
| X-Content-Type-Options | ⚠ Not configured |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✔ max-age=3600; includeSubDomains
CSP ✔ Configured
X-Frame-Options ⚠ Not configured
X-Content-Type-Options ⚠ Not configured
HTTP/2 ⚠ HTTP/1.1
HTTP Headers
| Cache-control | private, no-store |
| X-ua-device | pc |
| Fastly-ssl | 1 |
| Accept-ranges | bytes |
| Date | Sat, 29 Aug 2026 13:56:23 GMT |
| Via | 1.1 varnish |
| X-served-by | cache-par-lfpg1960033-PAR, cache-par-lfpg1960069-PAR |
| X-cache | MISS |
| X-cache-hits | 0 |
| X-timer | S1788011783.991890,VS0,VE39 |
| Vary | User-Agent |
| Content-security-policy | frame-ancestors 'self' |
| Strict-transport-security | max-age=3600; includeSubDomains |
Cache-control private, no-store
X-ua-device pc
Fastly-ssl 1
Accept-ranges bytes
Date Sat, 29 Aug 2026 13:56:23 GMT
Via 1.1 varnish
X-served-by cache-par-lfpg1960033-PAR, cache-par-lfpg1960069-PAR
X-cache MISS
X-cache-hits 0
X-timer S1788011783.991890,VS0,VE39
Vary User-Agent
Content-security-policy frame-ancestors 'self'
Strict-transport-security max-age=3600; includeSubDomains
