Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 134.195.60.154 |
| Compression | gzip |
|
🕐 🟡 Slow Response (1521 ms) | Response time exceeds 1 second. Consider optimizing the server or using caching. |
|
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 134.195.60.154
Compression gzip
🕐 🟡 Slow Response (1521 ms) Response time exceeds 1 second. Consider optimizing the server or using caching.
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://teachingbooks.net:443 | 302 | HTTP/1.1 302 Found : Moved Temporarily |
| 2 | https://school.teachingbooks.net/ | 200 | HTTP/1.1 200 OK |
#1 URL https://teachingbooks.net:443
HTTP Status Code 302
Status HTTP/1.1 302 Found : Moved Temporarily
#2 URL https://school.teachingbooks.net/
HTTP Status Code 200
Status HTTP/1.1 200 OK
Performance
| DNS Lookup | 50.1 ms |
| TCP Connect | 159.5 ms |
| TLS Handshake | 222.2 ms |
| Time To First Byte (TTFB) | 1520.6 ms |
| Content Download | 0.8 ms |
| Total Response Time | 1521.4 ms |
DNS Lookup 50.1 ms
TCP Connect 159.5 ms
TLS Handshake 222.2 ms
Time To First Byte (TTFB) 1520.6 ms
Content Download 0.8 ms
Total Response Time 1521.4 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✘ Not configured |
| CSP | ⚠ Not configured |
| X-Frame-Options | ⚠ Not configured |
| X-Content-Type-Options | ✔ nosniff |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✘ Not configured
CSP ⚠ Not configured
X-Frame-Options ⚠ Not configured
X-Content-Type-Options ✔ nosniff
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
| Title | TeachingBooks | Author & Book Resources to Support Reading Education |
Title TeachingBooks | Author & Book Resources to Support Reading Education
Detected Technologies
| Technology | jQuery Google Analytics Google Tag Manager |
Technology jQuery Google Analytics Google Tag Manager
HTTP Headers
| Date
| Fri, 24 Jul 2026 11:48:29 GMT |
| X-Mod-Pagespeed
| 1.13.35.2-0 |
| Vary
| Accept-Encoding |
| X-XSS-Protection
| 1; mode=block |
| X-Content-Type-Options
| nosniff |
| Cache-Control
| max-age=0, no-cache |
| Access-Control-Allow-Origin
| https://translate.googleusercontent.com |
| Access-Control-Allow-Credentials
| true |
| Access-Control-Allow-Methods
| GET,POST |
| Access-Control-Allow-Headers
| X-Requested-With, X_TBAPI_KEY, Authorization |
| Cteonnt-Length
| 53916 |
| Content-Type
| text/html; charset=utf-8 |
| Content-Encoding
| gzip |
| Content-Length
| 16194 |
Meta Tags
| Viewport | width=device-width, initial-scale=1.0 |
| X-UA-Compatible | IE=edge,chrome=1 |
| Content-type | text/html; charset=utf-8 |
| Google-site-verification | tgKzVwqxMiBKTpUbd5Fd2lrG04mEICuEkK4t1-ZjHUM |
| Apple-mobile-web-app-title | TeachingBooks |
Date Fri, 24 Jul 2026 11:48:29 GMT
X-Mod-Pagespeed 1.13.35.2-0
Vary Accept-Encoding
X-XSS-Protection 1; mode=block
X-Content-Type-Options nosniff
Cache-Control max-age=0, no-cache
Access-Control-Allow-Origin https://translate.googleusercontent.com
Access-Control-Allow-Credentials true
Access-Control-Allow-Methods GET,POST
Access-Control-Allow-Headers X-Requested-With, X_TBAPI_KEY, Authorization
Cteonnt-Length 53916
Content-Type text/html; charset=utf-8
Content-Encoding gzip
Content-Length 16194
