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.lightstorm.services · 92.240.232.11:443

Verified

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

Subject
CN=mail.lightstorm.services
Issuer
C=US O=Let's Encrypt CN=YR2
Valid from
2026-09-08T15:22:26+00:00
Expires
2026-12-07T15:22:25+00:00
Days remaining
54
Serial (hex)
0565923C5EFEA40AD73AB7E79D2DE988E882
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:autoconfig.airborne.sk, DNS:autoconfig.firefly.racing, DNS:autoconfig.lightstorm.services, DNS:autoconfig.molota.com, DNS:autodiscover.airborne.sk, DNS:autodiscover.firefly.racing, DNS:autodiscover.lightstorm.services, DNS:autodiscover.molota.com, DNS:mail.airborne.sk, DNS:mail.firefly.racing, DNS:mail.lightstorm.services, DNS:mail.molota.com

SHA-256 fingerprint

86:E5:B5:57:63:3B:F0:C6:58:A5:2B:2A:16:AA:56:5E:0A:08:DC:84:87:13:A5:A4:30:72:32:24:CC:6F:C7:27
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
2E:8B:83:6F:0D:F6:64:6B:6A:D3:47:F2:AB:87:52:D4:3D:D1:F0:C0
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.airborne.sk, DNS:autoconfig.firefly.racing, DNS:autoconfig.lightstorm.services, DNS:autoconfig.molota.com, DNS:autodiscover.airborne.sk, DNS:autodiscover.firefly.racing, DNS:autodiscover.lightstorm.services, DNS:autodiscover.molota.com, DNS:mail.airborne.sk, DNS:mail.firefly.racing, DNS:mail.lightstorm.services, DNS:mail.molota.com
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr2.c.lencr.org/3.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : C2:31:7E:57:45:19:A3:45:EE:7F:38:DE:B2:90:41:EB: C7:C2:21:5A:22:BF:7F:D5:B5:AD:76:9A:D9:0E:52:CD Timestamp : Sep 8 16:20:56.617 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:21:00:DF:55:7F:E0:C0:B9:63:8E:AA:73:CF: 97:BB:D8:C6:C1:B5:2D:8D:FC:89:EC:FC:D1:08:7C:A8: 17:BF:5B:45:A9:02:1F:17:E0:79:39:3B:74:12:11:11: E7:CD:A5:47:22:15:09:C7:9C:21:39:9D:05:AB:D1:80: 4F:0C:1C:94:4B:0A 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 8 16:20:54.646 2026 GMT Extensions: 00:00:05:00:3E:C6:31:E5 Signature : ecdsa-with-SHA256 30:45:02:21:00:90:A3:64:BF:05:D2:BD:7A:5B:25:CB: B8:F7:64:EF:C7:DE:DD:7E:F9:2F:0A:44:05:E1:DB:54: 5E:E5:5A:14:B6:02:20:52:07:11:B1:10:61:97:78:CA: 44:1E:75:E0:79:31:F8:DA:A1:08:9E:A8:98:5B:70:5E: 56:A7:61:E1:58:ED:AB
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-10-13T17:07:17+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
690
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
2151
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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