Дополнительная информация for https://correspondence.net
Technical Information
HTTP Status Code
200
HTTP Version
HTTP/1.1
HTTPS
✔ Available
IP Address
13.248.169.48
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).
ℹ 🔵No Compression
The server does not use Gzip or Brotli. Enable compression to reduce bandwidth usage.
HTTP Status Code200 HTTP VersionHTTP/1.1 HTTPS✔ Available IP Address13.248.169.48 ℹ 🔵Missing HSTSHTTP Strict Transport Security is not configured. Recommended for HTTPS sites. ℹ 🔵Missing Content Security PolicyCSP is not configured. It helps prevent XSS attacks and content injection. ℹ 🔵Missing X-Frame-OptionsThe site can be embedded in iframes by third parties (clickjacking risk). ℹ 🔵No CompressionThe server does not use Gzip or Brotli. Enable compression to reduce bandwidth usage.
Performance
DNS Lookup
1 ms
TCP Connect
85.9 ms
TLS Handshake
91 ms
Time To First Byte (TTFB)
261 ms
Content Download
0 ms
Total Response Time
261 ms
DNS Lookup1 ms TCP Connect85.9 ms TLS Handshake91 ms Time To First Byte (TTFB)261 ms Content Download0 ms Total Response Time261 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
HTTP Headers
Content-Type
text/html
Date
Wed, 19 Aug 2026 23:26:50 GMT
Content-Length
114
Content-Typetext/html DateWed, 19 Aug 2026 23:26:50 GMT Content-Length114