stack-up.org

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:51:4b:e3:cc:70:56:3f:e5:6e:7b:f1:4a:3a:c3:dd:35:b4 was issued on by Let's Encrypt.

With 2 subject alternative names this certificate can be used to secure multiple fqdn's. 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=stack-up.org

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:51:4b:e3:cc:70:56:3f:e5:6e:7b:f1:4a:3a:c3:dd:35:b4
Serial Number (int): 289000604413459317879914144781432604407220
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: c1:70:2b:0a:34:c2:0b:b6:bf:e9:47:a5:bf:35:f1:12:e8:b8:f0:67
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 0f:91:f4:12:e0:df:18:02:e7:d9:ff:65:42:26:95:a5:e6:41:aa:8e
Fingerprint (sha256): 69:1f:c3:7e:37:0f:67:40:97:e0:22:02:62:f7:10:83:e0:e5:2d:9e:09:f4:ae:56:a9:6d:b5:ff:7d:34:67:80

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 stack-up.org

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for stack-up.org

Public Key Algorithm

RSA

Key Size

2048

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

stack-up.org
www.stack-up.org

Other certificates including the domain name stack-up.org

(limited to 100 certificates)
mask6.classy.org
mask6.classy.org
mask6.classy.org
mask6.classy.org
donate.stack-up.org
stack-up.org
mask6.classy.org
stack-up.org
stack-up.org
stack-up.org
stack-up.org
mask6.classy.org
mask6.classy.org
stack-up.org
stack-up.org
stack-up.org
stack-up.org
mask6.classy.org
mask6.classy.org
mask6.classy.org
mask6.classy.org
mask6.classy.org
mask6.classy.org
mask6.classy.org
mask6.classy.org
stack-up.org
mask6.classy.org
stack-up.org
stack-up.org
stack-up.org
stack-up.org
mask6.classy.org
mask6.classy.org
mask6.classy.org
stack-up.org
stack-up.org
mask6.classy.org
mask6.classy.org
mask6.classy.org
mask6.classy.org
stack-up.org
stack-up.org
mask6.classy.org
mask6.classy.org
mask6.classy.org
mask6.classy.org
stack-up.org
stack-up.org
mask6.classy.org
mask6.classy.org
stack-up.org
stack-up.org
mask6.classy.org
mask6.classy.org
mask6.classy.org
stack-up.org
mask6.classy.org
mask6.classy.org
mask6.classy.org
mask6.classy.org
mask6.classy.org
mask6.classy.org
stack-up.org
mask6.classy.org
stack-up.org

Certificate

The complete raw certificate details for stack-up.org in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIFYTCCBEmgAwIBAgISA1FL48xwVj/lbnvxSjrD3TW0MA0GCSqGSIb3DQEBCwUA
MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD
ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTA3MjkwNjEzMjRaFw0x
OTEwMjcwNjEzMjRaMBcxFTATBgNVBAMTDHN0YWNrLXVwLm9yZzCCASIwDQYJKoZI
hvcNAQEBBQADggEPADCCAQoCggEBAL4XdNU2e8+9Z95PIJAQ52SMjSQhgleiKIyP
jiRS1Z/kjm0fq0ISWZWdwd7y7l1m8L9+Onj2QL9Utm/uqQcllHojmij7xCz42HJu
2xwJub5QxYDH74mpM7bUaM3YGmTvCBkRpENsasGVj94Vy4ACHTnzvkyb3tfW3WRJ
XiEBs9pJ4Lrvj8mlTtPOP++cAza8JVN5TuuO5lfwdf4L7jBsm1CCtiSIjATLiPVU
xANPqbBWgBwvrYtL1hQEfFsO+xl5h8X47czzaomjC7Mt6+Yw/aWj9+IslNJfxzi8
UUAjEyVcFY14/t00oYOLG18v1SfmO0A/jDNQsLVuRuq5Nit3zOcCAwEAAaOCAnIw
ggJuMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggrBgEFBQcDAQYIKwYBBQUH
AwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQUwXArCjTCC7a/6UelvzXxEui48Gcw
HwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl7/Oo7KEwbwYIKwYBBQUHAQEEYzBh
MC4GCCsGAQUFBzABhiJodHRwOi8vb2NzcC5pbnQteDMubGV0c2VuY3J5cHQub3Jn
MC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5pbnQteDMubGV0c2VuY3J5cHQub3Jn
LzApBgNVHREEIjAgggxzdGFjay11cC5vcmeCEHd3dy5zdGFjay11cC5vcmcwTAYD
VR0gBEUwQzAIBgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggrBgEFBQcCARYa
aHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEDBgorBgEEAdZ5AgQCBIH0BIHx
AO8AdQDiaUuuJujpQAnohhu2O4PUPuf+dIj7pI8okwGd3fHb/gAAAWw8k6KBAAAE
AwBGMEQCIC8IsRSmiBYcFqciPPcbgzr0h9WjPweMPXwJsJBK6ckuAiBrWJwn2UCm
pE9RZvCK+J+/YnlnO25VMdz06okx974GggB2AGPy283oO8wszwtyhCdXazOkjWF3
j711pjixx2hUS9iNAAABbDyTonUAAAQDAEcwRQIgeUdRtMer33zfkNJoF+pzxedv
GWuKXF7x1GE2jebcP/cCIQCS30vDZ1qZYe0vDxRNEQ+lwu4MmKHYe2g1Pt/KxjMz
IjANBgkqhkiG9w0BAQsFAAOCAQEAR/RtsBjpsoCw1yh1YeSGt3RFdIjydWOOutE0
+/AE/ovRIunXNLfu/OWhcjYIHulIUVMAZ5h3IMAXibZyzvdh2LsN1fRiz2bKEMQs
l7OlaxoiaLlPUUjKzIgoy084LiJNP51WqCgBUT/EMUiRRleufqkbeQTfSRZ8bhSA
vZmpp27PSstjIFyYeJrpWBPCryDULFAgo+dlzf7K5GzsybS8Q+53AxbhBUh/faRU
d2EgVaaG39YHwv2BJ23gzSxf1eYhyzs3iTQW+qT8M9Z6XmHdXNx9/oqGXIYLulSm
Tla4mRAVcC3orLfPQOYLoGG01guBjrdqnxvuDubdJkgK1ac9Pg==
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvhd01TZ7z71n3k8gkBDn
ZIyNJCGCV6IojI+OJFLVn+SObR+rQhJZlZ3B3vLuXWbwv346ePZAv1S2b+6pByWU
eiOaKPvELPjYcm7bHAm5vlDFgMfviakzttRozdgaZO8IGRGkQ2xqwZWP3hXLgAId
OfO+TJve19bdZEleIQGz2knguu+PyaVO084/75wDNrwlU3lO647mV/B1/gvuMGyb
UIK2JIiMBMuI9VTEA0+psFaAHC+ti0vWFAR8Ww77GXmHxfjtzPNqiaMLsy3r5jD9
paP34iyU0l/HOLxRQCMTJVwVjXj+3TShg4sbXy/VJ+Y7QD+MM1CwtW5G6rk2K3fM
5wIDAQAB
-----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 289000604413459317879914144781432604407220
 . . . . . . . . [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 2019-07-29 06:13:24 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-10-27 06:13:24 +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 'stack-up.org'
 . . . . . . . . [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 (2160 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 23996844714824631556636938638821949426145081021861373176298482178957259657678932229446074481890950407787925025520656512279379915416825408336139628405930333108533894559984427146286703029562263279053633255303560743318177181451994421540642841849858984753958210239602388439531443621183616663990564352694015827052128022254876373221712850268622594202146454755044294427073298924819658770892614910159383280983759835719833691391149545439634062370324499302171050949724497554710956629874415780094403266069843268858034965189414738048807286424108149712396933650429491794821500250441793319752297493439849540485184218411887387725031
 . . . . . . . . . . . . . . . . . . . . [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)
							c1702b0a34c20bb6bfe947a5bf35f112e8b8f067
 . . . . . . . . . . . . . . . . [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 (34 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'stack-up.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.stack-up.org'
 . . . . . . . . . . . . . . . . [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)
							00ef007500e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe0000016c3c93a281000004030046304402202f08b114a688161c16a7223cf71b833af487d5a33f078c3d7c09b0904ae9c92e02206b589c27d940a6a44f5166f08af89fbf6279673b6e5531dcf4ea8931f7be068200760063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d0000016c3c93a27500000403004730450220794751b4c7abdf7cdf90d26817ea73c5e76f196b8a5c5ef1d461368de6dc3ff702210092df4bc3675a9961ed2f0f144d110fa5c2ee0c98a1d87b68353edfcac6333322
 . . . . [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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