go.oacas.org

Issued by R3

About this certificate

This digital certificate with serial number 04:b4:42:b2:53:5e:bd:a5:f4:34:a9:25:3d:31:c5:7f:11:48 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:
  • 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=go.oacas.org

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:b4:42:b2:53:5e:bd:a5:f4:34:a9:25:3d:31:c5:7f:11:48
Serial Number (int): 409788624740318671329107361322668681793864
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 8c:e4:59:35:5b:a8:bd:ce:7e:42:c3:4a:2b:84:54:a0:43:12:6f:bf
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): d5:50:f3:b7:2f:a9:de:37:14:76:3e:2e:f8:31:45:04:7e:13:be:34
Fingerprint (sha256): 53:b5:e8:51:1f:d7:85:00:3b:24:5e:67:0c:b9:8f:a3:ff:d0:47:a0:98:9b:06:03:b8:4c:37:4e:f0:35:e5:56

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

Revocation information

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

Check the revocation status for certificate go.oacas.org

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for go.oacas.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

go.oacas.org

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Certificate

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

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIE5zCCA8+gAwIBAgISBLRCslNevaX0NKklPTHFfxFIMA0GCSqGSIb3DQEBCwUA
MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD
EwJSMzAeFw0yNDAzMDgxMjU3MTNaFw0yNDA2MDYxMjU3MTJaMBcxFTATBgNVBAMT
DGdvLm9hY2FzLm9yZzCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAMhW
HsPP6cBHmIXWs5yn5J/15iLnn5wYZ8+chxziLsZs6UP7/GxDQklR4ktBnWFTiKwZ
H1CrlzeBKw2Iumnd8HPmJiCpVYrr8FAia04oFvACGDAv2iLhI6dK71wpLyhoOUSS
XVT3H1CGUceHufTdGDO9NL7YifDLjRp0T1575jJ2SmQPAEdlWAhBuWEwXvcJfjBp
f4e/ZCakNHTUtCs/Mo4jO4VfW7Ybkot5/e7/McDfmJCfD0Buf4kFY1iW30TmddfQ
EVzxs6uqP+gwHP1WpV0456NGTP/PvaPIZBjaUh42iMhyi08VKySV3zrKi+/jgU3G
l48jgLIALECPmto9JRsCAwEAAaOCAhAwggIMMA4GA1UdDwEB/wQEAwIFoDAdBgNV
HSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4E
FgQUjORZNVuovc5+QsNKK4RUoEMSb78wHwYDVR0jBBgwFoAUFC6zF7dYVsuuUAlA
5h+vnYsUwsYwVQYIKwYBBQUHAQEESTBHMCEGCCsGAQUFBzABhhVodHRwOi8vcjMu
by5sZW5jci5vcmcwIgYIKwYBBQUHMAKGFmh0dHA6Ly9yMy5pLmxlbmNyLm9yZy8w
FwYDVR0RBBAwDoIMZ28ub2FjYXMub3JnMBMGA1UdIAQMMAowCAYGZ4EMAQIBMIIB
BgYKKwYBBAHWeQIEAgSB9wSB9ADyAHcAO1N3dT4tuYBOizBbBv5AO2fYT8P0x70A
DS1yb+H61BcAAAGOHlqIPAAABAMASDBGAiEAsbYvV82Lv0DJxNXdhRf12i9yF+te
igV3yQksdQX4ZwECIQDFBp6Ur/R+J7dtuJHyKl49XB9rORtQyUbWGAcT5DidcwB3
AEiw42vapkc0D+VqAvqdMOscUgHLVt0sgdm7v6s52IRzAAABjh5aiD4AAAQDAEgw
RgIhANsVtsmlKs/aaLMYveawuo1sATDPnr+LTtguYMKVjTKXAiEAi81Jbv1snHtF
xOHc51r9a0kQ+w54Bwn7qhCY++CLxcowDQYJKoZIhvcNAQELBQADggEBAKyoAXob
zfhXprp1WMy7GSTLLSVaGjYqmVqCIYalchcQam3Fi6v3euMmkfagL/pPG+eZLN9p
CYxnamWlMpu1MdtWACurZ8YS4U90jcDxxAfFd6nQ1EH6TX7639kHWXu/32cJgyN0
KI39XLxXSLatnCuvUc50D25a6l7kgxBW0FG0BZsP/NHTY5VDsanB7k5U0v8oWEhx
PzetBMzmcwmOyBcTXe1kT67fYnlXuUWfSLBF+FJfMdu4FEy/JdU3OXGNrk7POyOY
NWAe4qQ6dryJUMxaRdeF1BqUHadZOJ54ZUCciYfaiDkiuSLt2VkUjTlf2hQyYIhu
yQwqIDQDjP4l0Es=
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyFYew8/pwEeYhdaznKfk
n/XmIuefnBhnz5yHHOIuxmzpQ/v8bENCSVHiS0GdYVOIrBkfUKuXN4ErDYi6ad3w
c+YmIKlViuvwUCJrTigW8AIYMC/aIuEjp0rvXCkvKGg5RJJdVPcfUIZRx4e59N0Y
M700vtiJ8MuNGnRPXnvmMnZKZA8AR2VYCEG5YTBe9wl+MGl/h79kJqQ0dNS0Kz8y
jiM7hV9bthuSi3n97v8xwN+YkJ8PQG5/iQVjWJbfROZ119ARXPGzq6o/6DAc/Val
XTjno0ZM/8+9o8hkGNpSHjaIyHKLTxUrJJXfOsqL7+OBTcaXjyOAsgAsQI+a2j0l
GwIDAQAB
-----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 409788624740318671329107361322668681793864
 . . . . . . . . [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 2024-03-08 12:57:13 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-06-06 12:57:12 +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 'go.oacas.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 25290128434463202459096723504692394333537057129031625311840466899242919963352814943737400774300045469698578166469448166156175303143195809648520627751135527891414304872979577614634513073386898525036279858685210349733796659878606579764162301099687174362787700799623045871544134545051362178586783392811639696774442724611780123135500357670304302876703001220775762102045152545103680035015455294274711882126778841263769000862271586278458241713791981532006225185083544934461553771743985608127397546473793203501505607899803547882445671063088353146217461512992682943957575979754176649297903858524336742037310189820601509422363
 . . . . . . . . . . . . . . . . . . . . [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)
							8ce459355ba8bdce7e42c34a2b8454a043126fbf
 . . . . . . . . . . . . . . . . [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 (16 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'go.oacas.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 (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 (247 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes)
							00f20077003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018e1e5a883c0000040300483046022100b1b62f57cd8bbf40c9c4d5dd8517f5da2f7217eb5e8a0577c9092c7505f86701022100c5069e94aff47e27b76db891f22a5e3d5c1f6b391b50c946d6180713e4389d7300770048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018e1e5a883e0000040300483046022100db15b6c9a52acfda68b318bde6b0ba8d6c0130cf9ebf8b4ed82e60c2958d32970221008bcd496efd6c9c7b45c4e1dce75afd6b4910fb0e780709fbaa1098fbe08bc5ca
 . . . . [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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