DNS Gurus

SSL Verification Bypassed

The server's SSL certificate could not be verified. The analysis was completed using insecure mode. Data may be less reliable.

Reason:

Hostname Mismatch - certificate is issued for pulse.updown.io, updown.io, www.updown.io, not for db3.updn.io

Cached · just now
19 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Present
max-age=63072000
Content-Security-Policy
Good
default-src; font-src
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
strict-origin-when-cross-origin
Permissions-Policy
Missing
Not configured
Recommendations
  • • Increase HSTS max-age to at least 1 year and add includeSubDomains
  • • Strengthen CSP by removing 'unsafe-eval'
  • • Consider adding Permissions-Policy to control browser features

Performance Headers

0 headers
No performance headers found

Caching Headers

2 headers
Cache-Control
Caching
max-age=600, public
Etag
Caching
W/"ac4472009a667559cba1b4b879c7e36e"

Content Headers

1 headers
Content-Type
Content
text/html; charset=utf-8

Server Headers

3 headers
Server
Server
nginx/1.24.0 (Ubuntu)
X-Powered-By
Server
Phusion Passenger(R)
X-Runtime
Server
0.012763

CORS Headers

0 headers
No CORS headers found

Cookies Headers

0 headers
No cookies headers found

Other Headers

7 headers
Date
Other
Thu, 15 Jan 2026 01:22:51 GMT
Feature-Policy
Other
camera 'none'; microphone 'none'; usb 'none'; autoplay 'none'
Link
Other
<https://updown.io/assets/application-b916b1adb8635daa7bada04ab8378b430b9d334a4b5086d85355469bb92edfd7.css>; rel=preload; as=style; nopush,<https://updown.io/assets/application-24ec8a8026095a7a00bd484028592075ccb2159827cc7cad12f13716cb658b88.js>; rel=preload; as=script; nopush
Status
Other
200 OK
X-Permitted-Cross-Domain-Policies
Other
none
X-Proxy-Cache
Other
EXPIRED
X-Request-Id
Other
0c708734-1674-47e7-9099-b10dd34321a5

Recommendations

Enable compression (gzip/brotli) to improve performance

Consider removing X-Powered-By header to hide server technology