No Security Risks Detected
This domain appears to be safe and secure
100%
Score
Disclaimer: This assessment is based on automated analysis of publicly available information. Results are for informational purposes only. For critical applications, consult security professionals.
Scan Information
Last checked:December 26, 2025 22:58:04
Target URL:https://manual.cs50.io/
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Page Information
Target URL
https://manual.cs50.io/
Page Title
CS50 Manual Pages
Site FaviconStatus
Active
Host Information
Domain
manual.cs50.io
Server
nginx
Country
United States
IP Address
54.165.248.171
ASN Information
14618
AMAZON-AES
Technologies
Nginx
Web servers
HSTS
Security
SSL Certificate
HTTPS Enabled
Secure
Certificate Issuer
N/A
Valid From
2025-12-25 22:58:11
Valid Until
2026-12-26 22:58:11
Subject Name
manual.cs50.io
Performance Statistics
6
Total Requests
1
Domains
1
IP Addresses
881.07 KB
Transfer Size
Content Size2.63 MB
HTTP Headers
Cache-Control
no-cache, no-store, must-revalidate
Connection
keep-alive
Content-Encoding
gzip
Content-Security-Policy
frame-ancestors 'self'
Content-Type
text/html; charset=utf-8
Date
Fri, 26 Dec 2025 22:58:12 GMT
Expires
0
Permissions-Policy
camera=(self), geolocation=(self), microphone=(self)
Pragma
no-cache
Referrer-Policy
strict-origin
Server
nginx
Status
200 OK
Strict-Transport-Security
max-age=31536000; includeSubDomains
Transfer-Encoding
chunked
X-Content-Type-Options
nosniff
X-Frame-Options
SAMEORIGIN
X-XSS-Protection
0
17 headers detected
Technology Stack Analysis
Nginx
Web serversReverse proxies
Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.
HSTS
Security
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Website Cookies 2
AWSALBCORS
manual.cs50.io
Secure None
Value
1aXCd7fAFOTJf8Z2Zsy90sJXDn4e9nFgSeUAihn89WkJLyrM3Mkce+qyNvYr1H2oPHZ2iiGJVVTDvt0waEN4Oo71C3h5SV4LxCZh3KtxOTkxystdpuZP3Nhwhk9f
Expires:1/2/2026
AWSALB
manual.cs50.io
Value
1aXCd7fAFOTJf8Z2Zsy90sJXDn4e9nFgSeUAihn89WkJLyrM3Mkce+qyNvYr1H2oPHZ2iiGJVVTDvt0waEN4Oo71C3h5SV4LxCZh3KtxOTkxystdpuZP3Nhwhk9f
Expires:1/2/2026
External Links 0
Requested Domains 1
manual.cs50.io
Subdomain
No category information available