schrunk.org

Issued by R3

About this certificate

This digital certificate with serial number 04:68:1b:a6:40:62:29:09:43:3c:87:ab:0e:1b:11:84:9f:8f was issued on by Let's Encrypt.

With 16 subject alternative names this certificate can be used to secure multiple fqdn's. This certificate is currently not expired, we haven't checked the revocation status of this certificate but you can do this simply on revocationcheck.com. 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:
  • DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
  • Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
  • Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)

Certificate Subject

CN=schrunk.org

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate will expire on

Certificate Details

Serial Number (hex): 04:68:1b:a6:40:62:29:09:43:3c:87:ab:0e:1b:11:84:9f:8f
Serial Number (int): 383875262269834570939996294851938801196943
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 36:68:be:b6:dd:ee:6b:b9:ac:79:2b:b2:c4:bf:f0:87:3e:cf:bf:35
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): cc:9b:ba:a2:6d:ce:c2:2a:78:ac:57:a0:60:72:40:5f:26:7c:7b:cd
Fingerprint (sha256): 16:3e:c7:9f:d0:04:ba:8d:75:8a:82:fe:ef:9a:30:4a:12:35:cf:f2:72:6e:65:55:6f:42:13:ad:e7:b8:e4:29

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate schrunk.org

16

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for schrunk.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

beechbottom.com
captrue.com
cross.istlm.com
cybersecurityland.com
fortificio.com
halecounty.com
hmhlogin.mvschools.net
homeschoolactfl.org
interviewquestionstoask.com
ontariousedtrucks.com
safesextour.com
saintlouisneighborhood.com
schrunk.org
spontaneoushealing.com
standardlegalsoftware.com
turkesterone.net

Other certificates including the domain name schrunk.org

(limited to 100 certificates)

Certificate

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

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIGIzCCBQugAwIBAgISBGgbpkBiKQlDPIerDhsRhJ+PMA0GCSqGSIb3DQEBCwUA
MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD
EwJSMzAeFw0yNDA0MTYxNTQwMzhaFw0yNDA3MTUxNTQwMzdaMBYxFDASBgNVBAMT
C3NjaHJ1bmsub3JnMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAzGob
QGV/fhfNpYTPhOzKIepq+CpTUkj+LoJSeNBNzPLs/pNLVPPjW9eJ1CvOCnhJaQyE
b9B1oEUSfmCPukaGesM8bFTD+m9C4HFTBfnF0EfeQ1KqsSeVg0IVuxLRqQ0rx6Le
2wprexh5DeZJaasCppTU1Q+6D/uV4NN8tVDs2ea4+OnaL6fCCYfKLAEn5HxTPgh5
em906juAouNIVoG7R4j6E9vWACbNhpCM6RPV3qdlYGKyLyZ+BCvlS/i9ignb2/IB
CAmBWQGnoI7kCnhMh7jD2ENZyJbcAhGxzBlDzHpp45fvmjy52/Db4OiN4yLoxguN
0BYIZIxR4Zw1SeZRUQIDAQABo4IDTTCCA0kwDgYDVR0PAQH/BAQDAgWgMB0GA1Ud
JQQWMBQGCCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQW
BBQ2aL623e5ruax5K7LEv/CHPs+/NTAfBgNVHSMEGDAWgBQULrMXt1hWy65QCUDm
H6+dixTCxjBVBggrBgEFBQcBAQRJMEcwIQYIKwYBBQUHMAGGFWh0dHA6Ly9yMy5v
LmxlbmNyLm9yZzAiBggrBgEFBQcwAoYWaHR0cDovL3IzLmkubGVuY3Iub3JnLzCC
AVMGA1UdEQSCAUowggFGgg9iZWVjaGJvdHRvbS5jb22CC2NhcHRydWUuY29tgg9j
cm9zcy5pc3RsbS5jb22CFWN5YmVyc2VjdXJpdHlsYW5kLmNvbYIOZm9ydGlmaWNp
by5jb22CDmhhbGVjb3VudHkuY29tghZobWhsb2dpbi5tdnNjaG9vbHMubmV0ghNo
b21lc2Nob29sYWN0Zmwub3JnghtpbnRlcnZpZXdxdWVzdGlvbnN0b2Fzay5jb22C
FW9udGFyaW91c2VkdHJ1Y2tzLmNvbYIPc2FmZXNleHRvdXIuY29tghpzYWludGxv
dWlzbmVpZ2hib3Job29kLmNvbYILc2NocnVuay5vcmeCFnNwb250YW5lb3VzaGVh
bGluZy5jb22CGXN0YW5kYXJkbGVnYWxzb2Z0d2FyZS5jb22CEHR1cmtlc3Rlcm9u
ZS5uZXQwEwYDVR0gBAwwCjAIBgZngQwBAgEwggEFBgorBgEEAdZ5AgQCBIH2BIHz
APEAdwBIsONr2qZHNA/lagL6nTDrHFIBy1bdLIHZu7+rOdiEcwAAAY7nyClBAAAE
AwBIMEYCIQDUzNrd5/lohCCLWQW9tOwGXAIWoTzkjLJPuxhyXA2miAIhAKAhg28V
BCAxm+/hcKS3RXxTgNlQwHlm7e3lFC7knU/cAHYAO1N3dT4tuYBOizBbBv5AO2fY
T8P0x70ADS1yb+H61BcAAAGO58gpWgAABAMARzBFAiBfUuAPmDLina630y/iCUMf
ggb3U3aasjNJM1GTuFrFuwIhAIvwUpaVoFHoZKXUeynoCvLqUIrNKDhTllt4TTKu
+EumMA0GCSqGSIb3DQEBCwUAA4IBAQBi4WLqBHjHVSNCFlM5ylWYIryPLJJ3hOyL
RvVS2plmgTZXQWmWZuBSYfA1ZJ7OOVk0SuaEG3stxsfh0CI9eAjnmx7gkWwFH6JG
fAjxTtixU4gTGugMKf5PTqcIN+FNQR4+VJT32ZaTYAYvsrncjYeTwCbEVaLCXR+T
LFA9n8QU1tsE49K0/wX6AHUnz58/73v63CQWSYshlfoeEBN64ijnQKBYlhQlYzNc
cjLMWetxVsGIKbEU2sCt5vnaHfN1hY3Bc0I1LxnmdgvYfMpcQISHSGXfzg84J0bD
kaFgfyzwawaHUFlic4lEKoAOZGag8lzeM6bsNQ8WbpBmz8TxQS5R
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAzGobQGV/fhfNpYTPhOzK
Iepq+CpTUkj+LoJSeNBNzPLs/pNLVPPjW9eJ1CvOCnhJaQyEb9B1oEUSfmCPukaG
esM8bFTD+m9C4HFTBfnF0EfeQ1KqsSeVg0IVuxLRqQ0rx6Le2wprexh5DeZJaasC
ppTU1Q+6D/uV4NN8tVDs2ea4+OnaL6fCCYfKLAEn5HxTPgh5em906juAouNIVoG7
R4j6E9vWACbNhpCM6RPV3qdlYGKyLyZ+BCvlS/i9ignb2/IBCAmBWQGnoI7kCnhM
h7jD2ENZyJbcAhGxzBlDzHpp45fvmjy52/Db4OiN4yLoxguN0BYIZIxR4Zw1SeZR
UQIDAQAB
-----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 383875262269834570939996294851938801196943
 . . . . . . . . [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 'R3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-04-16 15:40:38 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-07-15 15:40:37 +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 'schrunk.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 25804937254349140184126794296733547562375047576077516376814538891210553471802359876298533701550930216831527287925395194923166603477142387214442992736958286621738035479306683542992398220997688261573126533166111541457434330080736701242422598586458690658653291926139505650131076063395650620851876738362566391698751671756219122109176589196295711214931871210087548871165824485389526055778003096778267476385994702159529063715279326886545562968930399532402208015162828653301608596315009670114159541412300708669821738735990372957455917407288134853411117109675143539818002173166655983975987690932728391663613263265381602447697
 . . . . . . . . . . . . . . . . . . . . [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)
							3668beb6ddee6bb9ac792bb2c4bff0873ecfbf35
 . . . . . . . . . . . . . . . . [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 142eb317b75856cbae500940e61faf9d8b14c2c6
 . . . . . . . . . . . . . . . . [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 (73 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://r3.o.lencr.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://r3.i.lencr.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 (330 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'beechbottom.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'captrue.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cross.istlm.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cybersecurityland.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'fortificio.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'halecounty.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'hmhlogin.mvschools.net'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'homeschoolactfl.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'interviewquestionstoask.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'ontariousedtrucks.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'safesextour.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'saintlouisneighborhood.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'schrunk.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'spontaneoushealing.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'standardlegalsoftware.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'turkesterone.net'
 . . . . . . . . . . . . . . . . [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 (12 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 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f100770048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018ee7c829410000040300483046022100d4ccdadde7f96884208b5905bdb4ec065c0216a13ce48cb24fbb18725c0da688022100a021836f150420319befe170a4b7457c5380d950c07966edede5142ee49d4fdc0076003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018ee7c8295a000004030047304502205f52e00f9832e29daeb7d32fe209431f8206f753769ab23349335193b85ac5bb0221008bf0529695a051e864a5d47b29e80af2ea508acd283853965b784d32aef84ba6
 . . . . [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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