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 www.fiserv.com, billmatrix.com, billmatrix.net, cardvalet.com, checkfreepay.com, fiserv.com, stage.billmatrix.com, stage.fiserv.com, star.com, not for checkfreesoftware.com

Cached · just now
25 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Present
max-age=31557600
Content-Security-Policy
Weak
frame-ancestors
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
  • • Increase HSTS max-age to at least 1 year and add includeSubDomains
  • • Significantly strengthen CSP directives
  • • Add Referrer-Policy header (recommended: strict-origin-when-cross-origin)
  • • Consider adding Permissions-Policy to control browser features

Performance Headers

3 headers
Accept-Ranges
Performance
bytes
Connection
Performance
close
Vary
Performance
Accept-Encoding

Caching Headers

5 headers
Age
Caching
1648
Cache-Control
Caching
max-age=3600,stale-while-revalidate=7200
Etag
Caching
"174b1-6485f3ea10096"
Expires
Caching
Wed, 14 Jan 2026 21:39:34 GMT
Last-Modified
Caching
Wed, 14 Jan 2026 20:49:30 GMT

Content Headers

2 headers
Content-Length
Content
95409
Content-Type
Content
text/html;charset=utf-8

Server Headers

0 headers
No server headers found

CORS Headers

5 headers
Access-Control-Allow-Credentials
Cors
true
Access-Control-Allow-Headers
Cors
Origin, Accept, Authorization, X-Requested-With, Content-Type, Access-Control-Request-Method, Access-Control-Request-Headers, X-Auth-Token
Access-Control-Allow-Methods
Cors
GET, OPTIONS
Access-Control-Allow-Origin
Cors
https://fsbi.fiservapps.com
Access-Control-Max-Age
Cors
86400

Cookies Headers

0 headers
No cookies headers found

Other Headers

6 headers
Date
Other
Wed, 14 Jan 2026 22:02:02 GMT
X-Cache
Other
HIT
X-Served-By
Other
cache-iad-kcgs7200172-IAD
X-Timer
Other
S1768428122.367639,VS0,VS0,VE2
X-Ua-Compatible
Other
IE=Edge
X-Vhost
Other
*.fiserv.com

Recommendations

Enable compression (gzip/brotli) to improve performance