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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

TLSv1.2

mail.affiber.com · 64.72.209.11:443

Verified

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

Subject
CN=mail.afconnect.com
Issuer
C=US O=Let's Encrypt CN=YR2
Valid from
2026-10-08T17:30:32+00:00
Expires
2027-01-06T17:30:31+00:00
Days remaining
86
Serial (hex)
057BA67A800EAFA43B29EC62E5DA817DF113
Signature
RSA-SHA256
Public key
RSA 3072

Subject alternative names (SAN)

DNS:mail.afconnect.com, DNS:mail.affiber.com, DNS:mail.afinternet.net, DNS:mail.mswen.net, DNS:mail.nharchitects.net, DNS:mail.utwire.com, DNS:mail.utwire.net

SHA-256 fingerprint

30:77:64:9E:78:85:01:D3:76:9F:F2:86:C3:CC:CA:E8:DD:35:E0:93:58:40:90:3C:0F:9D:FD:57:A2:15:54:87
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
B7:DE:2C:A4:22:3E:DF:E5:50:67:4C:C0:01:19:4B:E9:3D:EC:D6:45
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:mail.afconnect.com, DNS:mail.affiber.com, DNS:mail.afinternet.net, DNS:mail.mswen.net, DNS:mail.nharchitects.net, DNS:mail.utwire.com, DNS:mail.utwire.net
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr2.c.lencr.org/20.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 8 18:29:02.962 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:F2:E8:98:8F:F6:86:C7:B1:18:B0:34: 1B:25:CB:A8:43:D3:AA:A6:9B:E1:6A:A4:10:3F:B6:33: 77:08:29:12:E4:02:21:00:FF:CD:9A:31:DE:A0:76:D2: CB:A3:A8:06:85:3D:9A:FC:CE:56:61:91:CC:E3:AD:8A: 7E:8A:71:9A:87:F8:31:92 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 1A:8B:9D:6B:8D:D7:91:D1:CD:05:49:ED:B6:03:55:D6: 06:B6:4F:AD:30:DB:71:FE:78:8F:0F:C7:C8:FB:C4:B1 Timestamp : Oct 8 18:29:03.580 2026 GMT Extensions: 00:00:05:00:06:95:FE:80 Signature : ecdsa-with-SHA256 30:45:02:21:00:F6:B4:6E:59:E8:8F:83:9E:E2:06:37: F8:CE:9C:DA:E8:07:78:F6:08:64:30:AA:81:F7:51:E5: EC:0F:F9:AD:A3:02:20:6F:34:99:BC:10:48:3F:E9:2D: 8F:47:EE:EF:27:9B:5D:A5:C5:82:29:B8:F1:37:2C:BA: 7E:0D:3D:C1:82:22:45
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: ECDHE-RSA-AES256-SHA384 · Checked 2026-10-11T22:51:14+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
692
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
2153
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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