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

efs-ag.services · 185.197.164.16:443

Verified

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

Subject
CN=efs-ag.services
Issuer
C=US O=Let's Encrypt CN=YR1
Valid from
2026-09-24T01:25:34+00:00
Expires
2026-12-23T01:25:33+00:00
Days remaining
47
Serial (hex)
06D885A2E37FF7EFD58D7B03EB6779514F0F
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:efs-ag.services, DNS:files.efs-ag.services, DNS:services.efs-ag.at, DNS:services.efs-ag.com, DNS:services.efs-ag.de, DNS:services.efs-zrt.hu

SHA-256 fingerprint

5B:57:AC:20:69:9C:30:47:57:1B:00:CB:96:E8:63:27:D1:D7:25:79:63:F9:11:5E:EF:EC:DE:85:C2:88:AA:20
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
20:78:FF:63:6C:94:24:72:1D:3B:C8:7B:D1:6A:F0:91:39:30:71:0F
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:efs-ag.services, DNS:files.efs-ag.services, DNS:services.efs-ag.at, DNS:services.efs-ag.com, DNS:services.efs-ag.de, DNS:services.efs-zrt.hu
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr1.c.lencr.org/16.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 24 02:24:04.577 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:8B:9D:71:FD:5B:3E:3C:A7:D5:43:46: 83:D7:05:B2:EE:64:58:1F:90:2A:60:B8:05:20:AA:54: 29:98:D7:C4:D5:02:20:31:C2:A0:17:CD:8A:17:5E:E2: 91:F6:5D:81:99:07:1B:A1:E7:89:E0:4B:93:D2:2D:9B: 2F:89:56:B4:DD:E8:D2 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 26:E3:64:6E:58:69:21:23:BC:34:3F:47:24:35:9B:37: 92:CD:24:5A:88:D8:15:D3:93:33:FD:99:18:AB:47:23 Timestamp : Sep 24 02:24:02.061 2026 GMT Extensions: 00:00:05:00:45:B9:1A:7C Signature : ecdsa-with-SHA256 30:45:02:20:66:CF:8D:4A:2E:8F:7F:CC:25:66:0A:BF: 48:EA:23:63:F2:D9:0D:73:68:32:B4:B4:A7:73:E2:EF: C9:BE:D1:F1:02:21:00:CB:A5:4D:E4:A7:17:49:A0:29: D8:48:F6:C4:84:58:5E:C5:CA:82:EB:F7:65:0B:82:DE: B5:6E:5A:24:4F:62:D5
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-11-05T02:50:38+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
667
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
2128
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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