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 12, 2026 17:51:08
Target URL:https://optimist-diagnosis.com
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Page Information
Target URL
https://optimist-diagnosis.com
Page Title
スマホプラン診断 | Optimist
Site FaviconStatus
Active
Host Information
Domain
optimist-diagnosis.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
2026-04-11 17:51:13
Valid Until
2027-04-12 17:51:13
Subject Name
optimist-diagnosis.com
Performance Statistics
8
Total Requests
3
Domains
3
IP Addresses
322.74 KB
Transfer Size
Content Size654.96 KB
HTTP Headers
Access-Control-Allow-Origin
*
Age
29741
Cache-Control
public, max-age=0, must-revalidate
Content-Disposition
inline; filename="index.html"
Content-Encoding
br
Content-Type
text/html; charset=utf-8
Date
Sun, 12 Apr 2026 17:51:14 GMT
Etag
W/"25606afb95503322f08e862d90c6fd5e"
Last-Modified
Sun, 12 Apr 2026 09:35:32 GMT
Server
Vercel
Strict-Transport-Security
max-age=63072000
Transfer-Encoding
chunked
X-Vercel-Cache
HIT
X-Vercel-Id
sfo1::v4x8t-1776016274121-2fde31f170cf
14 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 0
Requested Domains 3
fonts.googleapis.com
Unknown Type
No category information available
fonts.gstatic.com
Unknown Type
No category information available
optimist-diagnosis.com
Apex domain
No category information available