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:April 8, 2026 18:22:09
Target URL:https://rl-handbook.com/
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Page Information
Target URL
https://rl-handbook.com/
Page Title
N/A
Status
Active
Host Information
Domain
rl-handbook.com
Server
Vercel
Country
United States
IP Address
216.198.79.1
ASN Information
16509
AMAZON-02
Technologies
Vercel
PaaS
HSTS
Security
SSL Certificate
HTTPS Enabled
Secure
Certificate Issuer
N/A
Valid From
2026-04-07 18:22:13
Valid Until
2027-04-08 18:22:13
Subject Name
rl-handbook.com
Performance Statistics
43
Total Requests
1
Domains
1
IP Addresses
613.75 KB
Transfer Size
Content Size1.42 MB
HTTP Headers
Access-Control-Allow-Origin
*
Age
484484
Cache-Control
public, max-age=0, must-revalidate
Content-Disposition
inline
Content-Encoding
br
Content-Type
text/html; charset=utf-8
Date
Wed, 08 Apr 2026 18:22:13 GMT
Etag
W/"20594659c8e62ab6574c58261080d196"
Server
Vercel
Strict-Transport-Security
max-age=63072000
Transfer-Encoding
chunked
Vary
rsc, next-router-state-tree, next-router-prefetch, next-router-segment-prefetch
X-Matched-Path
/
X-Nextjs-Prerender
1
X-Nextjs-Stale-Time
300
X-Vercel-Cache
HIT
X-Vercel-Id
pdx1::njkrm-1775672533882-cad3ec0e00cf
17 headers detected
Technology Stack Analysis
Vercel
PaaS
Vercel is a cloud platform for static frontends and serverless functions.
HSTS
Security
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
External Links 6
GitHub
github.com
Target URL
https://github.com/lubludrova/rl-handbook
View full changelog →
github.com
Target URL
https://github.com/lubludrova/rl-handbook#changelog
GitHub
github.com
Target URL
https://github.com/lubludrova
www.linkedin.com
Target URL
https://www.linkedin.com/in/ruslan-ageev-09b1a6387
contributors
github.com
Target URL
https://github.com/lubludrova/rl-handbook/graphs/contributors
arXiv
arxiv.org
Target URL
https://arxiv.org
Requested Domains 1
rl-handbook.com
Apex domain
No category information available