中文

SSL/TLS check

github.com

Valid 78 days leftExpires 2027-01-27

GradeA+

Full chain (PEM)

Leaf certificate first, then intermediates; the root is not included. Save it as fullchain.pem.

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Findings

  • Certificate is valid and trusted, expires in 78 days.

  • The certificate chain is complete.

  • TLS 1.3 is supported.

  • Revocation check (OCSP/CRL): not revoked.

  • HSTS enabled: max-age=31536000; includeSubdomains; preload

Certificate

Subject
github.com
Names (SAN)
github.com, www.github.com
Issuer
Sectigo Public Server Authentication CA DV E36 · Sectigo Limited
Valid from
2026-10-30 00:00 UTC
Expires
2027-01-27 23:59 UTC
Validity period
90 days
Public key
ECDSA P-256
Signature
ecdsa-with-SHA256
Validation level
DV
Embedded SCTs
2
Extended key usage
serverAuth
OCSP
http://ocsp.sectigo.com
CRL
—
Serial number
3E1D6026B4B0AEA279DCA2EFBBCED82B
SHA-256 fingerprint
7D:C4:D8:5C:F1:E3:10:97:12:25:BC:9A:92:57:67:90:43:A2:43:D7:0A:3C:C2:A9:1C:C5:D3:89:89:2C:27:76
SPKI SHA-256
8gWWkWa8AfAz0khtRYRodss7ieQPpu8Sd7DppK94eVo=

Connection

IP address
140.82.116.3
TLS version
TLSv1.3
Cipher suite
TLS_AES_128_GCM_SHA256
ALPN
h2
Hostname matches
Yes
Trusted
Yes
Chain complete
Yes
Root
Sectigo Public Server Authentication Root E46
HSTS
max-age=31536000; includeSubdomains; preload
CAA
0 issue "digicert.com"; 0 issue "globalsign.com"; 0 issue "letsencrypt.org"; 0 issue "sectigo.com"; 0 issuewild "digicert.com"; 0 issuewild "letsencrypt.org"; 0 issuewild "sectigo.com"
Revocation
Not revoked
Checked
2026-11-10 17:03 UTC · 220 ms

Protocols

TLS 1.3 Supported
TLS 1.2 Supported
TLS 1.1 Not supported
TLS 1.0 Not supported

Certificate chain

  1. github.com Issuer: Sectigo Public Server Authentication CA DV E36 · Expires 2027-01-27
    Subject
    CN=github.com
    Issuer
    CN=Sectigo Public Server Authentication CA DV E36,O=Sectigo Limited,C=GB
    Valid from
    2026-10-30 00:00 UTC
    Expires
    2027-01-27 23:59 UTC
    Public key
    ECDSA P-256
    Signature
    ecdsa-with-SHA256
    SHA-256 fingerprint
    7D:C4:D8:5C:F1:E3:10:97:12:25:BC:9A:92:57:67:90:43:A2:43:D7:0A:3C:C2:A9:1C:C5:D3:89:89:2C:27:76
    -----BEGIN CERTIFICATE-----
MIID9DCCA5ugAwIBAgIQPh1gJrSwrqJ53KLvu87YKzAKBggqhkjOPQQDAjBgMQsw
CQYDVQQGEwJHQjEYMBYGA1UEChMPU2VjdGlnbyBMaW1pdGVkMTcwNQYDVQQDEy5T
ZWN0aWdvIFB1YmxpYyBTZXJ2ZXIgQXV0aGVudGljYXRpb24gQ0EgRFYgRTM2MB4X
DTI2MTAzMDAwMDAwMFoXDTI3MDEyNzIzNTk1OVowFTETMBEGA1UEAxMKZ2l0aHVi
LmNvbTBZMBMGByqGSM49AgEGCCqGSM49AwEHA0IABDfKd4nH+v687AH/LbUBuI5o
XVsDbbLwRkLBCDbDmYWcrpxd8+9O0uPHpIgjAQ0gBToGy66v4d70x/jgDoosK3ej
ggKAMIICfDAfBgNVHSMEGDAWgBQXmagEwW/kLXCoChA9A9PpGrgmYzAdBgNVHQ4E
FgQUjLAqHq7uhl0AATWx5YtpI6U+PHEwDgYDVR0PAQH/BAQDAgeAMAwGA1UdEwEB
/wQCMAAwEwYDVR0lBAwwCgYIKwYBBQUHAwEwSQYDVR0gBEIwQDA0BgsrBgEEAbIx
AQICBzAlMCMGCCsGAQUFBwIBFhdodHRwczovL3NlY3RpZ28uY29tL0NQUzAIBgZn
gQwBAgEwgYQGCCsGAQUFBwEBBHgwdjBPBggrBgEFBQcwAoZDaHR0cDovL2NydC5z
ZWN0aWdvLmNvbS9TZWN0aWdvUHVibGljU2VydmVyQXV0aGVudGljYXRpb25DQURW
RTM2LmNydDAjBggrBgEFBQcwAYYXaHR0cDovL29jc3Auc2VjdGlnby5jb20wJQYD
VR0RBB4wHIIKZ2l0aHViLmNvbYIOd3d3LmdpdGh1Yi5jb20wggEMBgorBgEEAdZ5
AgQCBIH9BIH6APgAdQBGojlnxg22RofGbz35mZR2k6amESCEV9VV5+PQodm2RgAA
AaGKLocgAAAEAwBGMEQCICIQbbpOkqdkpMHlEO4IaqjUE51GdnAX8lTdfJqayeUy
AiBW+rfEnQghzD2sljP8DmiE364OeNXjRLnoS4/+EDmBMQB/AKKBABhzThduHUfg
lUDzgbpUZpfNY6hDUHFuuAlO2vENAAABoYouiCYACAAABQAyHujyBAMASDBGAiEA
qR77xK7WOstHFrsyltQlPHqO5UAlaD5EUGgfV+SyHngCIQCTdXIrVaNFlwq2jVoU
6eq3LTDtgBbBB8AS6pKHuIF94DAKBggqhkjOPQQDAgNHADBEAiAiIVULRbVeXo16
6wK3Vp15eud/nlbNTa+j4FUnKD6GYAIgBcK3WmeV05N87KRIoaIV/h97FykBOCul
KBsCT9qemhg=
-----END CERTIFICATE-----
  2. Sectigo Public Server Authentication CA DV E36 Issuer: Sectigo Public Server Authentication Root E46 · Expires 2036-03-21
    Subject
    CN=Sectigo Public Server Authentication CA DV E36,O=Sectigo Limited,C=GB
    Issuer
    CN=Sectigo Public Server Authentication Root E46,O=Sectigo Limited,C=GB
    Valid from
    2021-03-22 00:00 UTC
    Expires
    2036-03-21 23:59 UTC
    Public key
    ECDSA P-256
    Signature
    ecdsa-with-SHA384
    SHA-256 fingerprint
    87:3F:0B:A8:0E:3A:C2:22:65:6D:FD:04:15:8C:C1:5C:29:27:D4:2D:5D:05:F0:1D:EE:4A:47:EB:43:A9:16:DF
    -----BEGIN CERTIFICATE-----
MIIDXzCCAuagAwIBAgIQNuBZ7YiN1Xrt1XC2cn+b2jAKBggqhkjOPQQDAzBfMQsw
CQYDVQQGEwJHQjEYMBYGA1UEChMPU2VjdGlnbyBMaW1pdGVkMTYwNAYDVQQDEy1T
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BggrBgEFBQcDAQYIKwYBBQUHAwIwGwYDVR0gBBQwEjAGBgRVHSAAMAgGBmeBDAEC
ATBUBgNVHR8ETTBLMEmgR6BFhkNodHRwOi8vY3JsLnNlY3RpZ28uY29tL1NlY3Rp
Z29QdWJsaWNTZXJ2ZXJBdXRoZW50aWNhdGlvblJvb3RFNDYuY3JsMIGEBggrBgEF
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dGlnb1B1YmxpY1NlcnZlckF1dGhlbnRpY2F0aW9uUm9vdEU0Ni5wN2MwIwYIKwYB
BQUHMAGGF2h0dHA6Ly9vY3NwLnNlY3RpZ28uY29tMAoGCCqGSM49BAMDA2cAMGQC
MFsKnBQDh64l+v+aUYWjDCJKQMxHUUGmcwAYDIjJ9pbRYItMCIx5xu0oUb6sIfTX
qQIwPddcsDE4KdeLu1hJdpHgdLvsHAK3vygyLGujMU9xBJCDackRT93VHEE0gppg
NqdV
-----END CERTIFICATE-----
  3. Sectigo Public Server Authentication Root E46 Issuer: USERTrust ECC Certification Authority · Expires 2038-01-18
    Subject
    CN=Sectigo Public Server Authentication Root E46,O=Sectigo Limited,C=GB
    Issuer
    CN=USERTrust ECC Certification Authority,O=The USERTRUST Network,L=Jersey City,ST=New Jersey,C=US
    Valid from
    2021-03-22 00:00 UTC
    Expires
    2038-01-18 23:59 UTC
    Public key
    ECDSA P-384
    Signature
    ecdsa-with-SHA384
    SHA-256 fingerprint
    EA:6B:89:ED:69:07:A2:09:FF:91:88:67:6F:B1:64:E7:AC:ED:89:4B:89:96:DF:BE:5C:E5:BB:CC:22:DE:4D:DD
    -----BEGIN CERTIFICATE-----
MIIDRjCCAsugAwIBAgIQGp6v7G3o4ZtcGTFBto2Q3TAKBggqhkjOPQQDAzCBiDEL
MAkGA1UEBhMCVVMxEzARBgNVBAgTCk5ldyBKZXJzZXkxFDASBgNVBAcTC0plcnNl
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Y29tMAoGCCqGSM49BAMDA2kAMGYCMQCMCyBit99vX2ba6xEkDe+YO7vC0twjbkv9
PKpqGGuZ61JZryjFsp+DFpEclCVy4noCMQCwvZDXD/m2Ko1HA5Bkmz7YQOFAiNDD
49IWa2wdT7R3DtODaSXH/BiXv8fwB9su4tU=
-----END CERTIFICATE-----

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