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

skynet.bg · 195.234.138.55:443

Verified

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

Subject
CN=skynet.bg
Issuer
C=US O=Let's Encrypt CN=YR1
Valid from
2026-10-28T22:25:39+00:00
Expires
2027-01-26T22:25:38+00:00
Days remaining
83
Serial (hex)
05FF92E8D928B1827AD22BEDEA0A37B9A33F
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:admin.xn--80aklcrum.xn--90ae, DNS:autoconfig.skynet.bg, DNS:autodiscover.skynet.bg, DNS:mail.skynet.bg, DNS:skynet.bg, DNS:webmail.xn--80aklcrum.xn--90ae, DNS:www.skynet.bg, DNS:www.xn--80aklcrum.xn--90ae, DNS:xn--80aklcrum.xn--90ae

SHA-256 fingerprint

65:00:43:35:CA:D1:9F:8B:81:90:37:0E:8E:BD:0D:17:3B:3F:D0:95:15:FA:7D:BA:A9:56:C2:EC:81:75:DA:13
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
E3:90:B7:B5:79:93:E8:B6:AB:F8:57:FB:BB:1C:65:8A:92:F8:31:15
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:admin.xn--80aklcrum.xn--90ae, DNS:autoconfig.skynet.bg, DNS:autodiscover.skynet.bg, DNS:mail.skynet.bg, DNS:skynet.bg, DNS:webmail.xn--80aklcrum.xn--90ae, DNS:www.skynet.bg, DNS:www.xn--80aklcrum.xn--90ae, DNS:xn--80aklcrum.xn--90ae
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr1.c.lencr.org/64.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 46:A2:39:67:C6:0D:B6:46:87:C6:6F:3D:F9:99:94:76: 93:A6:A6:11:20:84:57:D5:55:E7:E3:D0:A1:D9:B6:46 Timestamp : Oct 28 23:24:09.691 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:37:FF:95:DF:D2:4B:D0:75:72:6A:84:1B: 0A:59:75:40:04:E1:01:AE:C7:4A:CB:69:EE:69:B6:D6: E0:01:51:20:02:20:1A:EC:8E:25:8A:CB:AE:00:73:BE: E0:94:E7:A5:74:50:B0:E8:87:4E:65:38:A0:F3:CD:71: 1A:19:F6:50:8B:1A Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 8E:CA:47:0B:AC:DE:6A:F3:A2:06:B0:A4:7A:84:B7:46: FE:1F:C6:BF:95:3E:25:E6:9B:4E:E4:02:48:F3:C6:E8 Timestamp : Oct 28 23:24:09.972 2026 GMT Extensions: 00:00:05:00:31:64:10:12 Signature : ecdsa-with-SHA256 30:44:02:20:45:9B:76:58:8E:03:F6:07:6E:26:E7:FC: 16:E9:E3:08:03:E3:42:57:A8:A1:0E:A8:91:E4:76:C8: 02:A6:AE:39:02:20:63:A6:12:7A:CC:86:21:14:91:23: E3:F0:A4:77:EF:51:A7:AD:6A:74:AF:B6:C4:3A:72:40: CE:31:C8:3B:3C:71
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-11-04T18:56:31+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
668
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
2129
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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