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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.meerfarbig.net · 193.32.220.82:443

Verified

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

Subject
CN=mail.meerfarbig.net
Issuer
C=US O=Let's Encrypt CN=YR2
Valid from
2026-10-29T17:31:22+00:00
Expires
2027-01-27T17:31:21+00:00
Days remaining
82
Serial (hex)
059C5D999F14B84FEF47BE9D157D40744483
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:autodiscover.xn--rhn-zgle-o4a7d.de, DNS:mail.meerfarbig.net

SHA-256 fingerprint

96:A3:69:69:3C:B9:4D:BE:FA:31:6D:22:67:26:AA:8D:34:22:AF:C0:49:99:16:3D:0F:27:6C:34:6B:2E:6D:2E
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
96:DE:80:22:FE:79:8E:B1:EE:FE:B7:6B:FC:CF:A6:00:0D:C2:50:9D
authorityKeyIdentifier
40:15:2D:26:79:ED:32:20:9E:DF:9A:72:1D:D6:32:1F:81:0C:81:0C
authorityInfoAccess
CA Issuers - URI:http://yr2.i.lencr.org/
subjectAltName
DNS:autodiscover.xn--rhn-zgle-o4a7d.de, DNS:mail.meerfarbig.net
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr2.c.lencr.org/4.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 44:C2:BD:0C:E9:14:0E:64:A5:C9:4A:01:93:0A:5A:A1: BB:35:97:0E:00:EE:11:16:89:68:2A:1C:44:D7:B5:66 Timestamp : Oct 29 18:29:52.575 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:75:A5:C5:31:70:46:8B:2D:D2:5D:D2:ED: A2:7D:6F:2C:48:33:A6:9B:C3:5E:33:DB:E6:B8:54:71: A7:2D:D2:D0:02:21:00:FA:97:34:78:07:E3:5C:17:48: 03:7E:E0:01:22:A2:6C:06:44:00:2E:22:9A:CC:BE:3F: 61:53:4F:0D:DE:5E:EE Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 1A:8B:9D:6B:8D:D7:91:D1:CD:05:49:ED:B6:03:55:D6: 06:B6:4F:AD:30:DB:71:FE:78:8F:0F:C7:C8:FB:C4:B1 Timestamp : Oct 29 18:29:53.740 2026 GMT Extensions: 00:00:05:00:0F:A1:41:C7 Signature : ecdsa-with-SHA256 30:44:02:20:35:D2:5A:4D:96:E1:6A:B9:9F:0A:88:C4: B3:0D:AC:70:2D:E2:A2:39:DA:CD:B3:2F:20:02:9D:B7: 4C:F9:17:00:02:20:12:E2:2A:AE:07:73:B5:34:1E:B4: B2:7C:C7:53:00:9D:36:AE:2C:3E:78:A8:09:1B:F8:7D: 15:27:B0:48:3A:6F
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-11-06T03:47:46+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=US O=Let's Encrypt CN=YR2
Issuer
C=US O=ISRG CN=Root YR
Valid from
2025-09-03T00:00:00+00:00
Expires
2028-09-02T23:59:59+00:00
Days remaining
666
Serial (hex)
4EBD24947E24D394802D84A52FD5B319
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

23:8B:85:A0:09:9C:65:B9:70:47:7D:57:24:F1:A1:D4:75:CE:50:58:CF:FE:4E:FA:87:33:89:9B:DB:86:3C:47
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
40:15:2D:26:79:ED:32:20:9E:DF:9A:72:1D:D6:32:1F:81:0C:81:0C
authorityKeyIdentifier
DE:E7:5B:60:D0:22:6D:40:28:7D:3F:0D:01:FE:A4:B5:52:B4:51:94
authorityInfoAccess
CA Issuers - URI:http://yr.i.lencr.org/
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr.c.lencr.org/ 
-----BEGIN CERTIFICATE-----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==
-----END CERTIFICATE-----

Chain certificate 2

Subject
C=US O=ISRG CN=Root YR
Issuer
C=US O=Internet Security Research Group CN=ISRG Root X1
Valid from
2026-05-13T00:00:00+00:00
Expires
2032-09-02T23:59:59+00:00
Days remaining
2127
Serial (hex)
F24B6D17F9D9AD7CB1C9FEA78782699F
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

07:26:39:D0:B1:40:D5:BF:FA:E1:6A:D9:C3:F6:CC:60:86:04:06:21:F5:1E:E6:1A:6D:46:A8:91:5C:07:CF:76
Certificate extensions & PEM
keyUsage
Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:TRUE
subjectKeyIdentifier
DE:E7:5B:60:D0:22:6D:40:28:7D:3F:0D:01:FE:A4:B5:52:B4:51:94
authorityKeyIdentifier
79:B4:59:E6:7B:B6:E5:E4:01:73:80:08:88:C8:1A:58:F6:E9:9B:6E
authorityInfoAccess
CA Issuers - URI:http://x1.i.lencr.org/
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://x1.c.lencr.org/ 
-----BEGIN CERTIFICATE-----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-----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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