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.prepaid-host.com · 45.142.114.20:443

Verified

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

Subject
CN=mail.prepaid-host.com
Issuer
C=US O=Let's Encrypt CN=YR1
Valid from
2026-10-02T17:18:39+00:00
Expires
2026-12-31T17:18:38+00:00
Days remaining
55
Serial (hex)
051283609D344390076CC0281AE21666688D
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:autoconfig.112lab.de, DNS:autoconfig.prepaid-host.com, DNS:autoconfig.sakel-it.de, DNS:autodiscover.prepaid-host.com, DNS:autodiscover.sakel-it.de, DNS:mail.prepaid-host.com

SHA-256 fingerprint

BA:EC:B5:0F:0A:CA:FA:29:DA:92:57:4D:7C:29:BB:EE:AE:A3:A5:05:1B:A5:65:3A:4A:4D:E7:A1:57:66:CB:14
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
D0:E5:B7:77:EE:B4:63:3F:35:EA:0B:4B:63:89:79:2C:D1:46:BB:DF
authorityKeyIdentifier
1F:2F:35:BE:46:14:82:CD:40:B1:AE:79:2C:55:78:FA:F7:D4:68:FB
authorityInfoAccess
CA Issuers - URI:http://yr1.i.lencr.org/
subjectAltName
DNS:autoconfig.112lab.de, DNS:autoconfig.prepaid-host.com, DNS:autoconfig.sakel-it.de, DNS:autodiscover.prepaid-host.com, DNS:autodiscover.sakel-it.de, DNS:mail.prepaid-host.com
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr1.c.lencr.org/14.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 94:4E:43:87:FA:EC:C1:EF:81:F3:19:24:26:A8:18:65: 01:C7:D3:5F:38:02:01:3F:72:67:7D:55:37:2E:19:D8 Timestamp : Oct 2 18:17:09.443 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:11:6E:54:E6:2F:D0:A8:0B:B3:50:C4:42: 49:03:D2:B3:22:5C:61:C5:D8:B7:E1:9B:9C:AC:60:1D: 7F:12:FE:2E:02:21:00:F1:3A:40:5F:20:A2:1C:3D:3B: ED:E0:92:49:8E:EE:8E:00:CD:0F:C1:76:10:EA:EA:BD: D7:46:1F:CC:A5:0F:25 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 : Oct 2 18:17:10.571 2026 GMT Extensions: 00:00:05:00:47:9F:1E:DE Signature : ecdsa-with-SHA256 30:45:02:21:00:DF:F6:0E:BA:B4:61:B2:9A:11:C2:B8: 77:BA:98:B5:57:8D:36:96:E7:C0:68:AD:47:03:48:2A: 30:01:78:4C:2D:02:20:3D:B7:76:91:2A:4E:0E:A5:55: 09:C1:07:40:37:DE:87:09:1E:9B:0D:D5:D5:1E:6F:1F: 2C:FE:FF:2E:C5:2C:2F
-----BEGIN CERTIFICATE-----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=
-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-11-06T14:39:04+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=US O=Let's Encrypt CN=YR1
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)
A20253F15F2691C05DC1CE13B9BCCA4E
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

13:94:96:34:D9:9C:D6:FD:6A:A8:0B:C0:34:FE:FA:CC:EB:19:69:FE:EF:98:65:86:71:3E:CD:BB:05:75:8D:3F
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
1F:2F:35:BE:46:14:82:CD:40:B1:AE:79:2C:55:78:FA:F7:D4:68:FB
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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