www.albanypinebush.org

Issued by RapidSSL RSA CA 2018

About this certificate

This digital certificate with serial number 07:0c:29:a9:d3:12:57:ae:9c:e0:5f:fd:a4:ef:eb:2d was issued on by DigiCert Inc.

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=www.albanypinebush.org

DigiCert Inc

Organization: DigiCert Inc
Organization unit: www.digicert.com
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 07:0c:29:a9:d3:12:57:ae:9c:e0:5f:fd:a4:ef:eb:2d
Serial Number (int): 9367748566473555475007942442510969645
Serial Number lenght: 123 bits, 16 octets

SubjectKeyId: 15:a5:41:3a:90:38:cf:98:e3:f6:ff:6e:f0:7e:f1:5f:ea:91:a3:92
AuthorityKeyId: 53:ca:17:59:fc:6b:c0:03:21:2f:1a:ae:e4:aa:a8:1c:82:56:da:75

Fingerprint (sha1): 1f:d6:13:3f:a2:0c:d6:a7:bc:6a:c8:9c:22:ac:ad:db:4b:5e:80:56
Fingerprint (sha256): 33:c6:7f:c1:59:58:47:09:09:cd:80:67:2c:fb:67:fb:61:d1:01:83:6c:76:d3:06:6d:bf:d6:18:0b:bd:fd:77

Issuing Certificate URL: http://cacerts.rapidssl.com/RapidSSLRSACA2018.crt

Revocation information

OCSP Server: http://status.rapidssl.com
CRL Distribution Point: http://cdp.rapidssl.com/RapidSSLRSACA2018.crl

Check the revocation status for certificate www.albanypinebush.org

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.albanypinebush.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

10 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

www.albanypinebush.org
albanypinebush.org

Other certificates including the domain name albanypinebush.org

(limited to 100 certificates)

Certificate

The complete raw certificate details for www.albanypinebush.org in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIFyzCCBLOgAwIBAgIQBwwpqdMSV66c4F/9pO/rLTANBgkqhkiG9w0BAQsFADBe
MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3
d3cuZGlnaWNlcnQuY29tMR0wGwYDVQQDExRSYXBpZFNTTCBSU0EgQ0EgMjAxODAe
Fw0xODEwMjIwMDAwMDBaFw0xOTAyMjQxMjAwMDBaMCExHzAdBgNVBAMTFnd3dy5h
bGJhbnlwaW5lYnVzaC5vcmcwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIB
AQDURVt771aWcbEaagyW12j5h2wznllKMGriXKJ01+ycDZOeIE2kDN5t2l1QFRrr
S0caPhSp89qXSgOhwhpej7UXFKucQUtG0rO/QaEoG7Bs5f5dsNaX9dX+Ik7sK3ZG
3BX/rcAwhfwiQSDbpYFcsNHpJOHS39T2Hxq6JYF6hzq3OMG76dsOzzmu5LxgSJO9
AVxbA3+RlJplmb5RRFMKKpuLsUPOI1LJrvtc+xMXX7tr5Lm4Thv39C2VB4CK2K9P
5Bc1JlwN9lSsmdt7XWYs4BBMHF50shyTK43KHiUGhBKJtjdWZ5yI8MthEmAEMCTY
eXZWJiB41AIYefu0KM8S1Y41AgMBAAGjggLAMIICvDAfBgNVHSMEGDAWgBRTyhdZ
/GvAAyEvGq7kqqgcglbadTAdBgNVHQ4EFgQUFaVBOpA4z5jj9v9u8H7xX+qRo5Iw
NQYDVR0RBC4wLIIWd3d3LmFsYmFueXBpbmVidXNoLm9yZ4ISYWxiYW55cGluZWJ1
c2gub3JnMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggrBgEFBQcDAQYIKwYB
BQUHAwIwPgYDVR0fBDcwNTAzoDGgL4YtaHR0cDovL2NkcC5yYXBpZHNzbC5jb20v
UmFwaWRTU0xSU0FDQTIwMTguY3JsMEwGA1UdIARFMEMwNwYJYIZIAYb9bAECMCow
KAYIKwYBBQUHAgEWHGh0dHBzOi8vd3d3LmRpZ2ljZXJ0LmNvbS9DUFMwCAYGZ4EM
AQIBMHUGCCsGAQUFBwEBBGkwZzAmBggrBgEFBQcwAYYaaHR0cDovL3N0YXR1cy5y
YXBpZHNzbC5jb20wPQYIKwYBBQUHMAKGMWh0dHA6Ly9jYWNlcnRzLnJhcGlkc3Ns
LmNvbS9SYXBpZFNTTFJTQUNBMjAxOC5jcnQwCQYDVR0TBAIwADCCAQIGCisGAQQB
1nkCBAIEgfMEgfAA7gB1AKS5CZC0GFgUh7sTosxncAo8NZgE+RvfuON3zQ7IDdwQ
AAABZpz+UugAAAQDAEYwRAIgZ2g+cINsCWRwhCny/EMZMOI0ctqXJpJGGH197s2E
lt4CIG9GzCa+xaJhlO5awL9T6IfQ451/dSGaGwzqczILm/54AHUAh3W/51l8+IxD
mV+9827/Vo1HVjb/SrVgwbTq/16ggw8AAAFmnP5T1QAABAMARjBEAiBBlcMEKlbX
RT3GYFTcOwfYzC1gYUhgkeudJlLeHwbAxQIgZzSD/lgEQHit1h88vXu0pbov30/Q
1c+2RUOYOWCvnZcwDQYJKoZIhvcNAQELBQADggEBAGkUBdn3Y3k/l/KFNmrFABrn
BTU0tZ08SSXBshiLRH6FQI8ugJS0Qj5YA7vDq3riV2D63yY+kgRlgSvA/YgGC+d8
cJl9CXViPAxQASbTAslkRbUC2s0bcGi7BvRnjhevZwRyt3o23F2hopafqQFTPyTR
Phg5euoAn8c9VckPnj1lxijClKZwKXzB8FdCJgvdhys+7B6bv6ysrCynbPM7DniB
N5myxJhOBfd1ikgVpWRIlcPp5gcckiykBQE/8gdhpnVoeddZBSwNv7T4k01Y0/1j
eQ1A6EtGxPUMneQq+JYrwDzkvLywgrf4TwvyHT5FmWrN+TI44mmttUyXMLAMojs=
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1EVbe+9WlnGxGmoMltdo
+YdsM55ZSjBq4lyidNfsnA2TniBNpAzebdpdUBUa60tHGj4UqfPal0oDocIaXo+1
FxSrnEFLRtKzv0GhKBuwbOX+XbDWl/XV/iJO7Ct2RtwV/63AMIX8IkEg26WBXLDR
6STh0t/U9h8auiWBeoc6tzjBu+nbDs85ruS8YEiTvQFcWwN/kZSaZZm+UURTCiqb
i7FDziNSya77XPsTF1+7a+S5uE4b9/QtlQeAitivT+QXNSZcDfZUrJnbe11mLOAQ
TBxedLIckyuNyh4lBoQSibY3VmeciPDLYRJgBDAk2Hl2ViYgeNQCGHn7tCjPEtWO
NQIDAQAB
-----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 9367748566473555475007942442510969645
 . . . . . . . . [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 'DigiCert Inc'
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.11 (organizationalUnitName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'www.digicert.com'
 . . . . . . . . . . . . [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 'RapidSSL RSA CA 2018'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2018-10-22 00:00:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-02-24 12:00:00 +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.albanypinebush.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 26796722041648066772675576999747608308654742621281483794028962412588822157703169234230221159868594673474700795269751551579357947932824930397740351929721156791058575436015553626081422867942194607010556995512244448186694959937793102322604445719119719851928421200948704914878216636517269116450634146132989171201706782281901680182427511458229598508397789942272002936737135581369635357562345012797087630744869813373931381472377457741502163460035007062498514955643700271906059372551823980458247531877974445756426159355422380711168822961922643546934575846149795726265495503380337652603437318989895071896104428337002047704629
 . . . . . . . . . . . . . . . . . . . . [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 2.5.29.35 (authorityKeyIdentifier)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName 53ca1759fc6bc003212f1aaee4aaa81c8256da75
 . . . . . . . . . . . . . . . . [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)
							15a5413a9038cf98e3f6ff6ef07ef15fea91a392
 . . . . . . . . . . . . . . . . [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 (46 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.albanypinebush.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'albanypinebush.org'
 . . . . . . . . . . . . . . . . [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 2.5.29.31 (cRLDistributionPoints)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (55 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://cdp.rapidssl.com/RapidSSLRSACA2018.crl'
 . . . . . . . . . . . . . . . . [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 2.16.840.1.114412.1.2 (digiCertDVCert)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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 'https://www.digicert.com/CPS'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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 1.3.6.1.5.5.7.1.1 (authorityInfoAccess)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (105 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://status.rapidssl.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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://cacerts.rapidssl.com/RapidSSLRSACA2018.crt'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.19 (basicConstraints)
 . . . . . . . . . . . . . . . . . . . . [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 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes)
							00ee007500a4b90990b418581487bb13a2cc67700a3c359804f91bdfb8e377cd0ec80ddc10000001669cfe52e80000040300463044022067683e70836c0964708429f2fc431930e23472da97269246187d7deecd8496de02206f46cc26bec5a26194ee5ac0bf53e887d0e39d7f75219a1b0cea73320b9bfe780075008775bfe7597cf88c43995fbdf36eff568d475636ff4ab560c1b4eaff5ea0830f000001669cfe53d5000004030046304402204195c3042a56d7453dc66054dc3b07d8cc2d6061486091eb9d2652de1f06c0c50220673483fe58044078add61f3cbd7bb4a5ba2fdf4fd0d5cfb64543983960af9d97
 . . . . [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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