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

mx.rootnet.nl · 185.173.20.25:443

Verified

Certificate chain, hostname and dates verified using this server’s CA store.

Subject
CN=*.rootnet.nl
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=RapidSSL TLS RSA CA G1
Valid from
2026-09-01T00:00:00+00:00
Expires
2027-03-18T23:59:59+00:00
Days remaining
176
Serial (hex)
09056925EAE2F4E17B6D4897714EBE27
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:*.rootnet.nl, DNS:rootnet.nl

SHA-256 fingerprint

5F:6E:7E:B8:A2:DD:8C:3D:7B:94:40:DC:43:AF:F6:D3:A6:CF:50:DC:E8:EE:02:5F:E7:65:AE:7D:D9:55:B7:68
Certificate extensions & PEM
authorityKeyIdentifier
0C:DB:6C:82:49:0F:4A:67:0A:B8:14:EE:7A:C4:48:52:88:EB:56:38
subjectKeyIdentifier
72:31:CE:76:9F:90:89:CF:4B:7E:B1:41:BA:60:10:A7:86:72:3A:D9
subjectAltName
DNS:*.rootnet.nl, DNS:rootnet.nl
certificatePolicies
Policy: 2.23.140.1.2.1 CPS: http://www.digicert.com/CPS
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
crlDistributionPoints
Full Name: URI:http://cdp.rapidssl.com/RapidSSLTLSRSACAG1.crl
authorityInfoAccess
OCSP - URI:http://status.rapidssl.com CA Issuers - URI:http://cacerts.rapidssl.com/RapidSSLTLSRSACAG1.crt
basicConstraints
CA:FALSE
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 4C:63:DC:98:E5:9C:1D:AB:88:F6:1E:8A:3D:DE:AE:8F: AB:44:A3:37:7B:5F:9B:94:C3:FB:A1:9C:FC:C1:BE:26 Timestamp : Sep 1 07:49:57.923 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:CE:6E:B5:5E:38:F5:7E:20:23:45:B2: D7:B9:31:30:62:4C:DF:1C:D8:E0:FF:F2:33:4D:AC:97: 4F:EA:1F:B5:40:02:20:7A:A3:EE:34:6D:2C:23:9A:D7: 5A:09:8C:7B:2E:2E:CC:40:70:5C:1E:9A:EF:EA:61:63: B7:C9:DF:1A:2D:E7:AE Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D6:D5:8D:A9:D0:17:53:F3:6A:4A:A0:C7:57:49:02:AF: EB:C7:DC:2C:D3:8C:D9:F7:64:C8:0C:89:19:1E:9F:02 Timestamp : Sep 1 07:49:57.991 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:2A:CE:15:F0:20:40:88:12:3B:41:A9:E4: DC:D8:DB:A3:D0:8B:1B:A6:F2:96:32:E1:6F:1B:9D:07: E9:98:03:3B:02:21:00:AA:72:7E:70:36:6F:D2:C9:5E: 75:4D:57:D0:A1:5A:53:0F:98:3E:ED:43:F1:4B:44:D3: 6B:39:60:D6:25:EE:A9 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 1C:9F:68:2C:E9:FA:F0:45:69:50:F8:1B:96:8A:87:DD: DB:32:10:D8:4C:E6:C8:B2:E3:82:52:4A:C4:CF:59:9F Timestamp : Sep 1 07:49:58.061 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:1B:93:18:6C:1E:6B:B0:4C:E8:DF:0D:8C: 83:55:A4:AA:B5:74:54:B7:04:78:ED:17:E6:3A:F1:EE: C3:70:A4:E3:02:20:41:BD:D7:3A:68:11:C3:03:55:73: FB:7D:F3:7B:5A:D0:40:27:DB:FB:82:D5:F0:55:94:6A: 15:4F:CF:13:19:8E
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-09-23T19:41:55+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=US O=DigiCert Inc OU=www.digicert.com CN=RapidSSL TLS RSA CA G1
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Valid from
2017-11-02T12:24:33+00:00
Expires
2027-11-02T12:24:33+00:00
Days remaining
404
Serial (hex)
0B259422CED9812A15A04E99528A0EFA
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

44:22:E9:63:EE:53:CD:58:CC:9F:85:CD:40:BF:5F:FE:C0:09:5F:DF:1A:15:45:35:66:1C:1C:06:BC:AD:C6:9B
Certificate extensions & PEM
subjectKeyIdentifier
0C:DB:6C:82:49:0F:4A:67:0A:B8:14:EE:7A:C4:48:52:88:EB:56:38
authorityKeyIdentifier
4E:22:54:20:18:95:E6:E3:6E:E6:0F:FA:FA:B9:12:ED:06:17:8F:39
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
basicConstraints
CA:TRUE, pathlen:0
authorityInfoAccess
OCSP - URI:http://ocsp.digicert.com
crlDistributionPoints
Full Name: URI:http://crl3.digicert.com/DigiCertGlobalRootG2.crl
certificatePolicies
Policy: 2.16.840.1.114412.1.1 CPS: https://www.digicert.com/CPS Policy: 2.16.840.1.114412.1.2 Policy: 2.23.140.1.2.1 Policy: 2.23.140.1.2.2
-----BEGIN CERTIFICATE-----
MIIEszCCA5ugAwIBAgIQCyWUIs7ZgSoVoE6ZUooO+jANBgkqhkiG9w0BAQsFADBh
MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3
d3cuZGlnaWNlcnQuY29tMSAwHgYDVQQDExdEaWdpQ2VydCBHbG9iYWwgUm9vdCBH
MjAeFw0xNzExMDIxMjI0MzNaFw0yNzExMDIxMjI0MzNaMGAxCzAJBgNVBAYTAlVT
MRUwEwYDVQQKEwxEaWdpQ2VydCBJbmMxGTAXBgNVBAsTEHd3dy5kaWdpY2VydC5j
b20xHzAdBgNVBAMTFlJhcGlkU1NMIFRMUyBSU0EgQ0EgRzEwggEiMA0GCSqGSIb3
DQEBAQUAA4IBDwAwggEKAoIBAQC/uVklRBI1FuJdUEkFCuDL/I3aJQiaZ6aibRHj
ap/ap9zy1aYNrphe7YcaNwMoPsZvXDR+hNJOo9gbgOYVTPq8gXc84I75YKOHiVA4
NrJJQZ6p2sJQyqx60HkEIjzIN+1LQLfXTlpuznToOa1hyTD0yyitFyOYwURM+/CI
8FNFMpBhw22hpeAQkOOLmsqT5QZJYeik7qlvn8gfD+XdDnk3kkuuu0eG+vuyrSGr
5uX5LRhFWlv1zFQDch/EKmd163m6z/ycx/qLa9zyvILc7cQpb+k7TLra9WE17YPS
n9ANjG+ECo9PDW3N9lwhKQCNvw1gGoguyCQu7HE7BnW8eSSFAgMBAAGjggFmMIIB
YjAdBgNVHQ4EFgQUDNtsgkkPSmcKuBTuesRIUojrVjgwHwYDVR0jBBgwFoAUTiJU
IBiV5uNu5g/6+rkS7QYXjzkwDgYDVR0PAQH/BAQDAgGGMB0GA1UdJQQWMBQGCCsG
AQUFBwMBBggrBgEFBQcDAjASBgNVHRMBAf8ECDAGAQH/AgEAMDQGCCsGAQUFBwEB
BCgwJjAkBggrBgEFBQcwAYYYaHR0cDovL29jc3AuZGlnaWNlcnQuY29tMEIGA1Ud
HwQ7MDkwN6A1oDOGMWh0dHA6Ly9jcmwzLmRpZ2ljZXJ0LmNvbS9EaWdpQ2VydEds
b2JhbFJvb3RHMi5jcmwwYwYDVR0gBFwwWjA3BglghkgBhv1sAQEwKjAoBggrBgEF
BQcCARYcaHR0cHM6Ly93d3cuZGlnaWNlcnQuY29tL0NQUzALBglghkgBhv1sAQIw
CAYGZ4EMAQIBMAgGBmeBDAECAjANBgkqhkiG9w0BAQsFAAOCAQEAGUSlOb4K3Wtm
SlbmE50UYBHXM0SKXPqHMzk6XQUpCheF/4qU8aOhajsyRQFDV1ih/uPIg7YHRtFi
CTq4G+zb43X1T77nJgSOI9pq/TqCwtukZ7u9VLL3JAq3Wdy2moKLvvC8tVmRzkAe
0xQCkRKIjbBG80MSyDX/R4uYgj6ZiNT/Zg6GI6RofgqgpDdssLc0XIRQEotxIZcK
zP3pGJ9FCbMHmMLLyuBd+uCWvVcF2ogYAawufChS/PT61D9rqzPRS5I2uqa3tmIT
44JhJgWhBnFMb7AGQkvNq9KNS9dd3GWc17H/dXa1enoxzWjE0hBdFjxPhUb0W3wi
8o34/m8Fxw==
-----END CERTIFICATE-----

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

View certificate JSON

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