Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 142.251.209.142 |
| Server Software | OFE/0.1 |
| Compression | gzip |
|
🔒 🟡 Mixed Content (2 HTTP resources) | The page is served over HTTPS but loads 2 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 142.251.209.142
Server Software OFE/0.1
Compression gzip
🔒 🟡 Mixed Content (2 HTTP resources) The page is served over HTTPS but loads 2 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.
Performance
| DNS Lookup | 202.7 ms |
| TCP Connect | 204 ms |
| TLS Handshake | 9.6 ms |
| Time To First Byte (TTFB) | 396.1 ms |
| Content Download | 243.3 ms |
| Total Response Time | 639.4 ms |
DNS Lookup 202.7 ms
TCP Connect 204 ms
TLS Handshake 9.6 ms
Time To First Byte (TTFB) 396.1 ms
Content Download 243.3 ms
Total Response Time 639.4 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✔ max-age=604800 |
| CSP | ⚠ Not configured |
| X-Frame-Options | ✔ SAMEORIGIN |
| X-Content-Type-Options | ✔ nosniff |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✔ max-age=604800
CSP ⚠ Not configured
X-Frame-Options ✔ SAMEORIGIN
X-Content-Type-Options ✔ nosniff
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
| Title | Google Books: Find, Preview, and Read Books Online. |
| Canonical | https://books.google.com.do/ |
Title Google Books: Find, Preview, and Read Books Online.
Canonical https://books.google.com.do/
Detected Technologies
| Technology | Google Analytics Apache Node.js |
Technology Google Analytics Apache Node.js
HTTP Headers
| Date
| Thu, 20 Aug 2026 08:59:55 GMT |
| Expires
| Fri, 01 Jan 1990 00:00:00 GMT |
| Cache-control
| no-cache, must-revalidate |
| X-frame-options
| SAMEORIGIN |
| X-xss-protection
| 1; mode=block |
| Strict-transport-security
| max-age=604800 |
| Pragma
| no-cache |
| Content-type
| text/html; charset=UTF-8 |
| P3p
| CP="This is not a P3P policy! See g.co/p3phelp for more info." |
| X-content-type-options
| nosniff |
| Content-encoding
| gzip |
| Server
| OFE/0.1 |
| Content-length
| 208176 |
| Set-cookie
| __Secure-ENID=35.SE=HK5D3i1VjIC1M9Vvzm_9E0J1s5fGhElon_ZyoIAMftFA2nVbWsbZIOjS0All6Mu1INw2yG0c3Sjo4M7L1AzdVJPbLHQ4kXAsVUStpJgm8PzWG-h4pt_BkJIvvdlFURPsDBG8FI7KiAusL4Is04VqOTRrnP_tjII1kQYB5T2zQJdEwdzy6Y8d0OniBhWcMV-H23ru1RlTPmwwViJNvOmZDI35WjhXkvxhQGzioX4EYa4; expires=Mon, 20-Sep-2027 01:18:13 GMT; path=/; domain=.google.com.do; Secure; HttpOnly; SameSite=lax |
| Alt-svc
| h3=":443"; ma=2592000,h3-29=":443"; ma=2592000 |
Meta Tags
| Content-type | text/html; charset=UTF-8 |
| Viewport | width=device-width, initial-scale=1 |
Date Thu, 20 Aug 2026 08:59:55 GMT
Expires Fri, 01 Jan 1990 00:00:00 GMT
Cache-control no-cache, must-revalidate
X-frame-options SAMEORIGIN
X-xss-protection 1; mode=block
Strict-transport-security max-age=604800
Pragma no-cache
Content-type text/html; charset=UTF-8
P3p CP="This is not a P3P policy! See g.co/p3phelp for more info."
X-content-type-options nosniff
Content-encoding gzip
Server OFE/0.1
Content-length 208176
Set-cookie __Secure-ENID=35.SE=HK5D3i1VjIC1M9Vvzm_9E0J1s5fGhElon_ZyoIAMftFA2nVbWsbZIOjS0All6Mu1INw2yG0c3Sjo4M7L1AzdVJPbLHQ4kXAsVUStpJgm8PzWG-h4pt_BkJIvvdlFURPsDBG8FI7KiAusL4Is04VqOTRrnP_tjII1kQYB5T2zQJdEwdzy6Y8d0OniBhWcMV-H23ru1RlTPmwwViJNvOmZDI35WjhXkvxhQGzioX4EYa4; expires=Mon, 20-Sep-2027 01:18:13 GMT; path=/; domain=.google.com.do; Secure; HttpOnly; SameSite=lax
Alt-svc h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
