Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 3.164.163.108 |
| Server Software | Server |
| CDN | CDN (Miss from cloudfront) |
| Compression | gzip |
|
🔒 🟡 Mixed Content (1 HTTP resources) | The page is served over HTTPS but loads 1 resource(s) over HTTP. This may be blocked in modern browsers. |
|
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 3.164.163.108
Server Software Server
CDN CDN (Miss from cloudfront)
Compression gzip
🔒 🟡 Mixed Content (1 HTTP resources) The page is served over HTTPS but loads 1 resource(s) over HTTP. This may be blocked in modern browsers.
ℹ 🔵 Missing Content Security Policy CSP is not configured. It helps prevent XSS attacks and content injection.
Redirect Chain
| # | URL | HTTP Status Code | Status |
| 1 | https://zvab.com:443 | 301 | HTTP/2 301 |
| 2 | https://www.zvab.com/ | 200 | HTTP/2 200 |
#1 URL https://zvab.com:443
HTTP Status Code 301
Status HTTP/2 301
#2 URL https://www.zvab.com/
HTTP Status Code 200
Status HTTP/2 200
Performance
| DNS Lookup | 30.2 ms |
| TCP Connect | 31.1 ms |
| TLS Handshake | 4.5 ms |
| Time To First Byte (TTFB) | 228 ms |
| Content Download | 81.3 ms |
| Total Response Time | 309.3 ms |
DNS Lookup 30.2 ms
TCP Connect 31.1 ms
TLS Handshake 4.5 ms
Time To First Byte (TTFB) 228 ms
Content Download 81.3 ms
Total Response Time 309.3 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✔ max-age=47474747 |
| CSP | ⚠ Not configured |
| X-Frame-Options | ✔ SAMEORIGIN |
| X-Content-Type-Options | ✔ nosniff |
| Permissions Policy | ✔ Configured |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✔ max-age=47474747
CSP ⚠ Not configured
X-Frame-Options ✔ SAMEORIGIN
X-Content-Type-Options ✔ nosniff
Permissions Policy ✔ Configured
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
| Title | ZVAB - Zentrales Verzeichnis Antiquarischer Bücher | Antiquarische und vergriffene Bücher online bestellen |
| Canonical | https://www.zvab.com/ |
| Twitter Card | summary_large_image |
Title ZVAB - Zentrales Verzeichnis Antiquarischer Bücher | Antiquarische und vergriffene Bücher online bestellen
Canonical https://www.zvab.com/
Twitter Card summary_large_image
Detected Technologies
| Technology | React Bootstrap Google Analytics |
Technology React Bootstrap Google Analytics
HTTP Headers
| Content-type
| text/html;charset=UTF-8 |
| Server
| Server |
| Date
| Tue, 21 Jul 2026 00:33:03 GMT |
| X-content-type-options
| nosniff |
| Permissions-policy
| interest-cohort=() |
| X-amz-rid
| 4X0J4D3CD2CFJXCCCXNH |
| Set-cookie
| abe_prefs=%7B%22modified%22%3Afalse%2C%22curr%22%3A%22EUR%22%2C%22shipdest%22%3A%22FRA%22%7D; Max-Age=34128000; Expires=Fri, 20 Aug 2027 00:33:03 GMT; Path=/; Secure |
| X-frame-options
| SAMEORIGIN |
| X-xss-protection
| 1; mode=block |
| Strict-transport-security
| max-age=47474747 |
| X-envoy-decorator-operation
| brightspot-frontend-verify.abebooks.svc.cluster.local:80/* |
| X-powered-by
| Brightspot |
| Content-encoding
| gzip |
| X-envoy-upstream-service-time
| 209 |
| Vary
| Accept-Encoding,User-Agent,Accept-Encoding,User-Agent |
| Via
| 1.1 e4108eba47cb3af03510fa926a6dec82.cloudfront.net (CloudFront), 1.1 3d0a1a4d2e3a445423aa0e8486655534.cloudfront.net (CloudFront) |
| X-amz-cf-pop
| CDG55-P3 |
| Cache-control
| public |
| Expires
| Tue, 21 Jul 2026 01:33:03 GMT |
| X-cache
| Miss from cloudfront |
| X-amz-cf-id
| ys11hdWyRAc1yOMT3tm6EIXzR5jU6pRVUoM03ZfODnopFobLXE5j8g== |
| Age
| 34 |
Meta Tags
| Fb:app_id | 267341716664813 |
| Dcterms.audience | global |
| Format-detection | telephone=no |
| Google | nositelinkssearchbox |
| Dcterms.rightsHolder | 1996 - 2026 AbeBooks, Inc. |
| Viewport | width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=5 |
| Lazy-script | https://assets.prod.abebookscdn.com/cdn/zvab/scripts/cwrumclient-3c0c7d1c41.js |
| Brightspot.contentId | 0000017b-0dfe-d338-affb-0ffe41cd0000 |
| Brightspot.cached | false |
Content-type text/html;charset=UTF-8
Server Server
Date Tue, 21 Jul 2026 00:33:03 GMT
X-content-type-options nosniff
Permissions-policy interest-cohort=()
X-amz-rid 4X0J4D3CD2CFJXCCCXNH
Set-cookie abe_prefs=%7B%22modified%22%3Afalse%2C%22curr%22%3A%22EUR%22%2C%22shipdest%22%3A%22FRA%22%7D; Max-Age=34128000; Expires=Fri, 20 Aug 2027 00:33:03 GMT; Path=/; Secure
X-frame-options SAMEORIGIN
X-xss-protection 1; mode=block
Strict-transport-security max-age=47474747
X-envoy-decorator-operation brightspot-frontend-verify.abebooks.svc.cluster.local:80/*
X-powered-by Brightspot
Content-encoding gzip
X-envoy-upstream-service-time 209
Vary Accept-Encoding,User-Agent,Accept-Encoding,User-Agent
Via 1.1 e4108eba47cb3af03510fa926a6dec82.cloudfront.net (CloudFront), 1.1 3d0a1a4d2e3a445423aa0e8486655534.cloudfront.net (CloudFront)
X-amz-cf-pop CDG55-P3
Cache-control public
Expires Tue, 21 Jul 2026 01:33:03 GMT
X-cache Miss from cloudfront
X-amz-cf-id ys11hdWyRAc1yOMT3tm6EIXzR5jU6pRVUoM03ZfODnopFobLXE5j8g==
Age 34
