www.sfoco.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:12:d1:bf:97:28:ec:74:77:98:2f:f3:93:3e:4b:a7:39:e4 was issued on by Let's Encrypt.

This certificate has already expired and will cause a warning or error message in the browser it's still listed on this site to allow you to look back on previously issued certificates. If we have found any compliance issues with this certificate they will be shown below. I hope this certificate review is providing you the detailed information in a simple form you where looking for.


We have idenified some issues with this certificate:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

Certificate Subject

CN=www.sfoco.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:12:d1:bf:97:28:ec:74:77:98:2f:f3:93:3e:4b:a7:39:e4
Serial Number (int): 267740743845562815766181078522673825790436
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 50:56:1c:50:11:b4:3d:5b:c3:44:ee:b8:ec:66:4c:06:fc:4c:d4:74
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 34:13:b7:fb:70:a7:d9:2e:a6:57:d0:83:7a:78:dc:ce:3f:52:13:64
Fingerprint (sha256): 24:cb:90:67:62:6c:cb:90:46:f5:ab:48:2e:82:e9:83:5a:5d:fd:94:44:00:72:9e:7f:11:28:6f:25:7e:8a:0c

Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x3.letsencrypt.org

Check the revocation status for certificate www.sfoco.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.sfoco.com

Public Key Algorithm

RSA

Key Size

4096

Signature Algorithm

SHA256 with RSA

Key Usage

Digital Signature
Key Encipherment

Extended Key Usages

Server Authentication
Client Authentication

Extensions

9 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

www.sfoco.com

Other certificates including the domain name sfoco.com

(limited to 100 certificates)

Certificate

The complete raw certificate details for www.sfoco.com in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIGUTCCBTmgAwIBAgISAxLRv5co7HR3mC/zkz5LpznkMA0GCSqGSIb3DQEBCwUA
MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD
ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTEwMTMwNjIwMTNaFw0y
MDAxMTEwNjIwMTNaMBgxFjAUBgNVBAMTDXd3dy5zZm9jby5jb20wggIiMA0GCSqG
SIb3DQEBAQUAA4ICDwAwggIKAoICAQDNmsOTmDDE+kmQn6ia6ehI3YVB608c6TUR
6ZU0tSCfiACivC3cnEvuvIqcxGlMRpsyWfstpQoiNf9qMEXNtdqTyJksNFOoEy2b
2H2j39urGKNkxOZMkl3dHOGFkej4f/fQfrMpQfX2qSVDcqNMOKxsIdxvRNgeGMFb
u0TvBA6h/ouG4O8xDPH9638nWcY/Uf4/90+sI9BPF6S8unTLip4nAkYMbllMBG0Z
jiUV60vQNQYEAALYdZbMaXZn3SRotn5clI/phA5EB2/g600qAbcVMiRe+/xvp6pi
vQZDgdTbbTQ+I2t09UVaSHikJ8+CGxJqcZgj0VK/pHJRdQ1ojl19LCqXCtJEUCUY
GswjKaKIDics6YY77NmnH1HmRbtZh4v8wUAfQY3mvF17IUVitimhjb1g9dEqejyI
eFBobrmxtCjYzAgi2VnuNA8nCAccv4uVQMcWeYGp+Q+zgpAM2NmIdd2+IBnY+Fxe
zNbw82nqGVrBumIoY7r4Uco0sfdpJytfMDlhcv0tdxR249H7f5oZ7VNI60Oof8En
9Vn63yv4+xv5rdoUedO1NXySQ+6CBD80/3TrO7OVYhTGNa79ujQg7N/bXP+ABOmX
dVFpnpAhC4AmMjzgdtMk07KJSKG7Ihv3U1csr87brN7lqVPNbNWxSzvhpHxFFA7n
uAu7RmnwGwIDAQABo4ICYTCCAl0wDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQG
CCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBRQVhxQ
EbQ9W8NE7rjsZkwG/EzUdDAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86js
oTBvBggrBgEFBQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14
My5sZXRzZW5jcnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14
My5sZXRzZW5jcnlwdC5vcmcvMBgGA1UdEQQRMA+CDXd3dy5zZm9jby5jb20wTAYD
VR0gBEUwQzAIBgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggrBgEFBQcCARYa
aHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEDBgorBgEEAdZ5AgQCBIH0BIHx
AO8AdgDwlaRZ8gDRgkAQLS+TiI6tS/4dR+OZ4dA0prCoqo6ycwAAAW3D/TE5AAAE
AwBHMEUCIQCTdJvqmnVAzFRBd7WfDwsfqMYeSYY/k/QYRylsoXIZ6gIgcW1zAYBt
9NykhIa7VVtgEjhT4dJ7j2WN85Q+0mfHYrsAdQApPFGWVMg5ZbqqUPxYB9S3b79Y
eily3KTDDPTlRUf0eAAAAW3D/TEyAAAEAwBGMEQCIA7/jZDJXSRCLOCVpITWijUn
XItZW8wKX+vJAIwF/GNAAiBmREd3g4ffI7HNe/uhfAN5x9s2uC7uGCZl5J0uz55m
5jANBgkqhkiG9w0BAQsFAAOCAQEAY8pbK2muynPk70R6DQypfrybXW/e6cgYKRba
ljlOeWSYltGHNLk3rVLX18a+AzDzceKLBbKDQWTNYDLJu3F9kwRGuDhK0IzFFbqb
GXKO4igGYojJ1xgDCKRkKY3m7PbrBSvQMvb02Plr7jtYHcTLgVCmSQ5AMlNOxgAB
KSuuLPPlsC6FNScdybBgY16jiS1extz+7QzUNWJiS5CC4kFgF2mNGfegZFS46fk8
GDG4l3z6J/mLMRy6Abi6BezgwpDjc+HU/IIHOm2JWWpcNPexkcyXEg0TqbSDvy9j
t6VQM0siDvigmfB4lUnnAp2Qry1FSf/Vzxi1ZCSwceMWP+QVhQ==
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----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-----END PUBLIC KEY-----

ASN.1 decoded

 [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . [c:0|t:2|false] INTEGER 2
 . . . . . . . . [c:0|t:2|false] INTEGER 267740743845562815766181078522673825790436
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption)
 . . . . . . . . . . . . [c:0|t:5|false] NULL 
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.6 (countryName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'US'
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.10 (organizationName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Let's Encrypt'
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Let's Encrypt Authority X3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-10-13 06:20:13 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-11 06:20:13 +0000 UTC
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'www.sfoco.com'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.1 (rsaEncryption)
 . . . . . . . . . . . . . . . . [c:0|t:5|false] NULL 
 . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (4208 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 838793369552233494603181683838177658667535946051327302368039984334652238997131320344701301744163967716999911672757832410460081388449644074669555147672050665756058905392877473121941402033182550275344954122078807172135572502595350931725352233948761911869714265375086023294386400823875220513863022840349519208118230442874998563932180129507816176287809554258726291547474507911155572710137183947410747830477145210429376993636184907860096433107201720651177249435391044549597068750451574906986537140827972896810687623925926376021136277411442366770187071762827739925471927535358046774874944401581632797030948725927806965683568146398365140823032930019294182185429994070583943373340771784610793937582898143855799537464791970291492734722922882534917943519327096965679255954515850253016128801912532405961776449749542486150047845358814134092672780715088109689159850681498836174015373367461463066434566418011810849201082056644064237373729292351620092939701120255860473795065468407091359337945914519523735437181021468696502617584680582650403759409284662574855310174408575338583507893661961112244049640194443369511305799987693655179461819954942248929579142674780530108439672115273982613700092436421283401428458031823044552255427884195700916282322971
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 65537

 . . . . . . . . [c:2|t:3|true] ORAddress 
 . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.15 (keyUsage)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (4 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (3 bits)
							05a0
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.37 (extKeyUsage)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.1 (serverAuth)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.2 (clientAuth)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.19 (basicConstraints)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (2 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.14 (subjectKeyIdentifier)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes)
							50561c5011b43d5bc344eeb8ec664c06fc4cd474
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.35 (authorityKeyIdentifier)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName a84a6a63047dddbae6d139b7a64565eff3a8eca1
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.1.1 (authorityInfoAccess)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (99 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.1 (ocsp)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://ocsp.int-x3.letsencrypt.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2 (caIssuers)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://cert.int-x3.letsencrypt.org/'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.17 (subjectAltName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (17 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.sfoco.com'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.32 (certificatePolicies)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (69 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.23.140.1.2.1 (Domain Validation Certificates Policy)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.44947.1.1.1
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.1 (cps)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:22|false] IA5String 'http://cps.letsencrypt.org'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef007600f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016dc3fd3139000004030047304502210093749bea9a7540cc544177b59f0f0b1fa8c61e49863f93f41847296ca17219ea0220716d7301806df4dca48486bb555b60123853e1d27b8f658df3943ed267c762bb007500293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016dc3fd3132000004030046304402200eff8d90c95d24422ce095a484d68a35275c8b595bcc0a5febc9008c05fc63400220664447778387df23b1cd7bfba17c0379c7db36b82eee182665e49d2ecf9e66e6
 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption)
 . . . . . . . . [c:0|t:5|false] NULL 
 . . . . [c:0|t:3|false] BIT STRING (2048 bits)
		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