DNS
THE CERTIFICATE BEHIND THE CONNECTION

TLS certificate checker.

Inspect SSL/TLS certificates for any public domain or subdomain.

Checks HTTPS on port 443, including subject alternative names, validity dates and the presented chain.

SSL certificate

TLSv1.3

mail.register.it · 195.110.124.132:443

Unverified
Certificate verification failed. These are unverified certificate details presented by the server. SSL operation failed with code 1. OpenSSL Error messages: error:0A000086:SSL routines::certificate verify failed
The certificate has expired.

Certificate verification failed

Subject
O=Acme Co CN=Kubernetes Ingress Controller Fake Certificate
Issuer
O=Acme Co CN=Kubernetes Ingress Controller Fake Certificate
Valid from
2025-07-28T11:54:23+00:00
Expires
2026-07-28T11:54:23+00:00
Days remaining
-91
Serial (hex)
9173BBBDE7EA49041ADB130B1C96A563
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:ingress.local

SHA-256 fingerprint

6D:3B:54:6A:7C:EC:84:4C:BB:EF:3B:58:9E:EA:05:22:5D:FF:82:08:AC:0E:EC:33:B7:4C:B2:F8:0A:28:F1:A6
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectAltName
DNS:ingress.local
-----BEGIN CERTIFICATE-----
MIIDcDCCAligAwIBAgIRAJFzu73n6kkEGtsTCxyWpWMwDQYJKoZIhvcNAQELBQAw
SzEQMA4GA1UEChMHQWNtZSBDbzE3MDUGA1UEAxMuS3ViZXJuZXRlcyBJbmdyZXNz
IENvbnRyb2xsZXIgRmFrZSBDZXJ0aWZpY2F0ZTAeFw0yNTA3MjgxMTU0MjNaFw0y
NjA3MjgxMTU0MjNaMEsxEDAOBgNVBAoTB0FjbWUgQ28xNzA1BgNVBAMTLkt1YmVy
bmV0ZXMgSW5ncmVzcyBDb250cm9sbGVyIEZha2UgQ2VydGlmaWNhdGUwggEiMA0G
CSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQCnkCBVMAraztKeXrImXfQ5L8REUI2h
PrPa3HsAZYfMkSCftCxOCcww7gzlyGgZxAcOGBFJQP8dZA82JGDoL4aiOPRzcOe7
JRKeDuRdbNzyXv6iZCk0F3ZReBTSYORGqp+uMVSeEN/whpGzHbsdPgQi/1IsdJUk
Y/xXhN/nCrjqMaBeYePJNrECzdJxMU3qbMK5iFmrrzhZbGG7LStpR8aKeB2cWeAt
TuRD3axeNMJnmu2A3QikyJ1l0ozaEQL778pAECNIp/8UvQXILYkMCD3TTY13vADh
8d9ELpPAfSXmUda2N1E2NBU3h5o15JaoJepbl8s6VvFRiC01MOdmE9VXAgMBAAGj
TzBNMA4GA1UdDwEB/wQEAwIFoDATBgNVHSUEDDAKBggrBgEFBQcDATAMBgNVHRMB
Af8EAjAAMBgGA1UdEQQRMA+CDWluZ3Jlc3MubG9jYWwwDQYJKoZIhvcNAQELBQAD
ggEBACp+hKX8Wb7X3mVqC1sj91jRBT3ce9hol3b6aK0o5cyFxNzE42wV/ztDi2BS
Vzms93y55rY2vgWTnVHSKE2XFpTlx7TzcRf/W3nzdtwAFvIYV/ayT5FuMp3Bkd1h
dWsKoVh/STAiqe04iBvD2u4YINebRVseVZV2GJ0tAsRU0phnLf72MB8k/TlkyaCw
UZhz2nZqYb9Ky+42dR9eRYxQFrp5lcU9Ep+/9BlzRoXQtoO6/096vLmUhq/m9mPv
Lf5yNqY+pr61AJDN+ojjNfp/rN1nI7/csa4WgsgEDLbB695cNHMgRiJdMGZc1TlE
b1u746WlGkYCmOI9nxowgvIWPhY=
-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-10-27T04:49:45+00:00

One endpoint on port 443. Server-presented chain; no revocation, OCSP, CT or full TLS security scan.

View certificate JSON

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