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:July 14, 2025 05:43:11
Target URL:https://ducklead.dev/
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Page Information
Target URL
https://ducklead.dev/
Page Title
ducklead.dev | 521: Web server is down
Status
Active
Host Information
Domain
ducklead.dev
Server
cloudflare
Country
United States
IP Address
104.21.112.1
ASN Information
13335
CLOUDFLARENET
Technologies
HSTS
Security
Cloudflare
CDN
SSL Certificate
HTTPS Enabled
Secure
Certificate Issuer
49m399 Gateway Proxy BISO MITM CA
Valid From
2025-07-12 01:54:10
Valid Until
2025-08-11 01:54:40
Subject Name
ducklead.dev
Performance Statistics
8
Total Requests
1
Domains
1
IP Addresses
23.18 KB
Transfer Size
Content Size26.51 KB
HTTP Headers
cache-control
private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0
cf-ray
95eeb3aaaf97d8b2-MRS
cf-team
28a90e9b330001004274494400000001
content-length
6989
content-type
text/html; charset=UTF-8
date
Mon, 14 Jul 2025 05:43:19 GMT
expires
Thu, 01 Jan 1970 00:00:01 GMT
referrer-policy
same-origin
server
cloudflare
server-timing
cfReqDur;dur=1206.193
x-frame-options
SAMEORIGIN
11 headers detected
Technology Stack Analysis
HSTS
Security
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Cloudflare
CDN
Cloudflare is a web-infrastructure and website-security company, providing content-delivery-network services, DDoS mitigation, Internet security, and distributed domain-name-server services.
External Links 1
Additional troubleshooting information
developers.cloudflare.com
Target URL
https://developers.cloudflare.com/support/troubleshooting/http-status-codes/cloudflare-5xx-errors/error-521/
Requested Domains 1
ducklead.dev
Apex domain
No category information available