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

m.14v.de · 212.82.32.31:443

Verified

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

Subject
CN=m.14v.de
Issuer
C=US O=Let's Encrypt CN=YR2
Valid from
2026-09-21T06:38:49+00:00
Expires
2026-12-20T06:38:48+00:00
Days remaining
51
Serial (hex)
05F939AE3D2311991509E1C227A1F1A6CC57
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:autoconfig.14v.de, DNS:autodiscover.14v.de, DNS:m.14v.de

SHA-256 fingerprint

54:15:B9:79:34:6B:84:9A:1A:85:52:08:98:B2:ED:BF:79:A6:AC:33:7B:E9:AF:E2:CB:52:74:F6:E3:B7:96:BB
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
4B:25:35:45:21:E8:F1:6B:1F:A0:9F:FE:E1:F2:B1:D9:AA:86:22:2D
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:autoconfig.14v.de, DNS:autodiscover.14v.de, DNS:m.14v.de
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr2.c.lencr.org/88.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D8:09:55:3B:94:4F:7A:FF:C8:16:19:6F:94:4F:85:AB: B0:F8:FC:5E:87:55:26:0F:15:D1:2E:72:BB:45:4B:14 Timestamp : Sep 21 07:37:19.642 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:C7:FA:BC:BC:22:47:D1:18:18:FB:19: 09:4E:1B:AA:79:F4:58:9A:62:37:55:18:65:BB:61:81: BA:A9:9B:F7:F7:02:20:2C:68:62:1B:F8:78:A1:A7:FC: 54:2B:09:45:8C:79:03:AE:5D:F7:2A:CB:23:06:53:16: AE:0B:67:CA:27:4B:64 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 1A:8B:9D:6B:0F:FE:BF:81:B4:79:39:C6:D2:31:0A:86: D6:D1:02:D4:F0:46:E2:18:2C:9D:E3:5F:5E:26:25:EF Timestamp : Sep 21 07:37:20.365 2026 GMT Extensions: 00:00:05:00:43:7F:E3:33 Signature : ecdsa-with-SHA256 30:46:02:21:00:80:E9:4E:D0:24:40:0B:CF:32:45:C0: 98:6A:CC:B8:D7:84:65:CB:1A:7B:A0:43:F7:F8:25:97: DC:16:01:FF:AC:02:21:00:9B:9F:DB:72:0A:E9:58:4B: 52:B7:18:86:9A:8E:9F:E2:C5:7D:36:E2:AE:28:C5:75: 6F:25:F9:A9:BF:17:FF:B8
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-10-30T06:09:48+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
673
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
2134
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-----
MIIF9DCCA9ygAwIBAgIRAPJLbRf52a18scn+p4eCaZ8wDQYJKoZIhvcNAQELBQAw
TzELMAkGA1UEBhMCVVMxKTAnBgNVBAoTIEludGVybmV0IFNlY3VyaXR5IFJlc2Vh
cmNoIEdyb3VwMRUwEwYDVQQDEwxJU1JHIFJvb3QgWDEwHhcNMjYwNTEzMDAwMDAw
WhcNMzIwOTAyMjM1OTU5WjAuMQswCQYDVQQGEwJVUzENMAsGA1UEChMESVNSRzEQ
MA4GA1UEAxMHUm9vdCBZUjCCAiIwDQYJKoZIhvcNAQEBBQADggIPADCCAgoCggIB
ANvGJnN78CTJdWL3+eGfsLN5TrNBJs+VH9hRXqRbwxu9sGNiB0BD1fcOxbSUQCJI
M1xE13Db+5Cw1w0s0EBYsvuIP/6joF0w8cuImbgR1OGgYbSQ4OpzI+DG8SGuTlcE
873OCS+kh3srlo6vl43M5OJg4Aeo1sfHp6kTJDoIiFBNJAY+OKfX/FUvYKuhjT+n
o49lmqmupSBI5PkBQiqrEGtWU5uxU/cQWHGu8jSjFBznZqvbNPLMXMLFxCb3WTfr
JBXXjqvWG+v4bjzxjjeAtOlU7qarRDvNOyAuQYLln904M+faKx8hnLCpJ15ZqaEg
cNlY+9MMWcC5yvL2A2j3l9+2buggZX+dOE91zYmIdawTvSZuVvlbRrAlLxIB6pwM
BjneXCjYQ8+3BCCjssbSNpZU3hTcBDdhfAlEDlYr6pEatnMdmDT5BqnKC92bd0Eh
M1fbLHioLccLCuievT8ZkPhZrq7Mii7gNXAcUEAR8+lzYal+9zTg7C5DALyVOeG/
CqfRAMn1KSHCR0NSA6P8tn/mGRlnCct5rtVCLnVySVpU6H1qGg3DgTOuskf8eahT
MiYbI5ezPJmO5ertalskQ1utp74+eDy92PI4ftHKTbq9IWhH4YZKh3WnJEIt+oQv
lYZbY8tpEroKrFB6PFGzrJIDRyts4HqvuH52RFj2zv/BAgMBAAGjgeswgegwDgYD
VR0PAQH/BAQDAgEGMBMGA1UdJQQMMAoGCCsGAQUFBwMBMA8GA1UdEwEB/wQFMAMB
Af8wHQYDVR0OBBYEFN7nW2DQIm1AKH0/DQH+pLVStFGUMB8GA1UdIwQYMBaAFHm0
WeZ7tuXkAXOACIjIGlj26ZtuMDIGCCsGAQUFBwEBBCYwJDAiBggrBgEFBQcwAoYW
aHR0cDovL3gxLmkubGVuY3Iub3JnLzATBgNVHSAEDDAKMAgGBmeBDAECATAnBgNV
HR8EIDAeMBygGqAYhhZodHRwOi8veDEuYy5sZW5jci5vcmcvMA0GCSqGSIb3DQEB
CwUAA4ICAQA8spSI95KKfn2W6GMmDpHBJSPaLbsS3W93cijJCRCYAc1fsJgL1FIL
7C0C9ecPOdcwB2fi0Dk2p94j9iTJCxmt5CFSKLRWwnXT2MMSXexVxqoVB79BdWPx
VXETkVme/qYSAuKVHh5Ps+5BixgmwS1JkjSAc+MfrUbNssVEEnH0aEiAh+rotXAV
JSP/Ye7LJPEwD9DWG72vVWbhAcuOf5OLjz57Ctk7MgQHynZ7+PlHJtajroCaIbtC
r6tcZZaAwUQm+jQyeWdV+2hv9deOYFmKeQyjjcSrN5Nadrw+L9DZJLbA1HqeNvLh
BgqpP0fvJq2N6EtD574N6eMI7uMsJTnji2UDz9el5XLSv9fqJMuDQtYVb2oTNoKp
oUqhxPVC0aq4eG5MESaIdn8b5ZGSSeAJLMHXljEdlNza+ncfkviXk1POLnnFdvx8
/gk6M374WbLWFXw8N141B/Rl/tINGfl1TxOIiqtiMYkL02RSGb1kq34BL9NPP27z
RGMuHGnzS3hFIrRTfKxrzUZ9RzQWzEG3K6fJ3r2nqSltkeytis9DIBoFY9VmVyjL
M71DMi+y1+TRSJVClEMwvA4yL++7q9XZx5r5wBRWB4kQTKH5qyoZnDw7iiuh1lID
yDFx8r7i9vIJU5HS3moZLkYWAOilMaV9N56A9Bgb6dNcHkvg3NoaYA==
-----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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