clarknow.testing.clarku.edu
Issued by R3
About this certificate
This digital certificate with serial number 03:f9:cb:d4:7a:ef:ca:98:7a:a4:3f:df:af:6b:4a:21:5f:65 was issued on by Let's Encrypt.
With 3 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=clarknow.testing.clarku.edu
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:f9:cb:d4:7a:ef:ca:98:7a:a4:3f:df:af:6b:4a:21:5f:65Serial Number (int): 346338103702124967442188738118910216331109
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: ce:50:ae:de:23:5c:a0:65:97:f6:77:a0:25:46:20:fd:4a:22:32:07
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6
Fingerprint (sha1): 38:85:e8:a9:0d:96:66:11:95:bb:43:5f:aa:58:8f:46:6d:9e:1b:ea
Fingerprint (sha256): 10:8b:57:4a:b0:81:9e:80:80:93:4e:e6:e8:b0:fe:61:a8:15:02:98:d7:73:9e:58:81:1a:fe:13:d0:98:78:a9
Issuing Certificate URL: http://r3.i.lencr.org/
Revocation information
OCSP Server: http://r3.o.lencr.orgCheck the revocation status for certificate clarknow.testing.clarku.edu
3
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for clarknow.testing.clarku.edu
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
clarknow.testing.clarku.edu
testing.clarku.edu
www.testing.clarku.edu
testing.clarku.edu
www.testing.clarku.edu
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useastucc5.acquia.com
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Certificate
The complete raw certificate details for clarknow.testing.clarku.edu in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGZzCCBU+gAwIBAgISA/nL1Hrvyph6pD/fr2tKIV9lMA0GCSqGSIb3DQEBCwUA MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD EwJSMzAeFw0yMjA5MjUwMDM3MTJaFw0yMjEyMjQwMDM3MTFaMCYxJDAiBgNVBAMT G2NsYXJrbm93LnRlc3RpbmcuY2xhcmt1LmVkdTCCAiIwDQYJKoZIhvcNAQEBBQAD ggIPADCCAgoCggIBANU+AMYXKnF7HdFYl50s2Gx5ocGeqEN8ctk4GKzlGu1V+qZf 78iUXrNrtLiPnwQOLZ8d0r4Q9XK/RngUyQvFMFz9GN4g3nTm40v+/p4/GGzt2u9Z PWsXkfoqybTFwk6ZOzGYq13g/7gMCp30CXv5/h2ideOkH6PbidcVoa9oPUoHbpSb Sa0+nNsjBX35nBYGYRFxPBCLJs127IMZ7IOuJ+QU1KwlMhTgXgMmh0sr8Lnlc3iU bfa0OoMeGpp5a85JZr8xjYac+E9MAq3zB1NbUOOT8gd9eqNS08Jf3S631HTXSn+/ fqTrscXOBX0x1HW88Hn3GqZnxyzib+FukOoaUPITwB73eLmNWPmSaXBBCvB51RF5 scOze/rIYAYptmEqP/D01B5ayGvpnmrtLazyQQyIjzn0Qp1tX0nNyt8ckyHCtZGL pmW7wt5Ub/N0zNnFNfdzTqa4g2KIVySQ3q8dvTJKdIImApJNYz6eALbbHyaw2jOO 8hxz9Idx80z2eHxLcvcH+Zn387FO701xIlda0rIez+hUAyZrlpZFxbNhNYz8r2Yv k4ymVOERinsgZGmvX+xG+QVAYZA+4ps5hsFCZuPTY9VMjtN4Rol3mB3mzFS3QQAT zzT5vmN2hO6YQnbEkOZFCDjo/+vaRXFkW5kJOPyye/P5XAqiQEizNGf7XAhfAgMB AAGjggKBMIICfTAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYBBQUHAwEG CCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFM5Qrt4jXKBll/Z3oCVG IP1KIjIHMB8GA1UdIwQYMBaAFBQusxe3WFbLrlAJQOYfr52LFMLGMFUGCCsGAQUF BwEBBEkwRzAhBggrBgEFBQcwAYYVaHR0cDovL3IzLm8ubGVuY3Iub3JnMCIGCCsG AQUFBzAChhZodHRwOi8vcjMuaS5sZW5jci5vcmcvMFIGA1UdEQRLMEmCG2NsYXJr bm93LnRlc3RpbmcuY2xhcmt1LmVkdYISdGVzdGluZy5jbGFya3UuZWR1ghZ3d3cu dGVzdGluZy5jbGFya3UuZWR1MEwGA1UdIARFMEMwCAYGZ4EMAQIBMDcGCysGAQQB gt8TAQEBMCgwJgYIKwYBBQUHAgEWGmh0dHA6Ly9jcHMubGV0c2VuY3J5cHQub3Jn MIIBAwYKKwYBBAHWeQIEAgSB9ASB8QDvAHUA36Veq2iCTx9sre64X04+WurNohKk al6OOxLAIERcKnMAAAGDckqRCwAABAMARjBEAiAtckckxHkv65WyLMWMbZJKg2nV peqZJblZAWtysg2E0wIge2F4zi8sd8CCNrVhuskCZi+xNMZy8sLayM+OwcxMp20A dgBGpVXrdfqRIDC1oolp9PN9ESxBdL79SbiFq/L8cP5tRwAAAYNySpE7AAAEAwBH MEUCIQC80Fdu5su2s8Eski6ZIIcU273f2lUtWwvqQFD/UW2ULgIgLtfqiOZfjvZn tt8SlNs8gL5v3QaLdi9xU582JZzPdEMwDQYJKoZIhvcNAQELBQADggEBAHe2uaO9 EVuUc1JDkwPa9j/IFDx82YkJC8os3xhSMgJA3lP+TW4YZTLIAllr7PLE7n2OiqXL /E9qj1N/7jiNxA0KReq07N4GIaTK/rz2ky6nMpQgmc7afPV2vWpSkFeBXZkilVvb Phc5HEAvidHHdl7BQrk/H/p+Dru5fe9NWqVNWRPbBfX6hNpGMmJyVSJMCl2nm7Yx kpy6Int+27olhyK6Ys/VWL/8tfj1aiiys0oTkpT4MHrgkvdSCicRakO4nSD3roXu hE7B2IBtL8AUQkATckpLroPBk0PY9JsYJJ5AQ9KZ22HHZh6ek4TZ2ZFSFMVEfpFM CpeI4fY4vG/M6AY= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA1T4AxhcqcXsd0ViXnSzY bHmhwZ6oQ3xy2TgYrOUa7VX6pl/vyJRes2u0uI+fBA4tnx3SvhD1cr9GeBTJC8Uw XP0Y3iDedObjS/7+nj8YbO3a71k9axeR+irJtMXCTpk7MZirXeD/uAwKnfQJe/n+ HaJ146Qfo9uJ1xWhr2g9SgdulJtJrT6c2yMFffmcFgZhEXE8EIsmzXbsgxnsg64n 5BTUrCUyFOBeAyaHSyvwueVzeJRt9rQ6gx4amnlrzklmvzGNhpz4T0wCrfMHU1tQ 45PyB316o1LTwl/dLrfUdNdKf79+pOuxxc4FfTHUdbzwefcapmfHLOJv4W6Q6hpQ 8hPAHvd4uY1Y+ZJpcEEK8HnVEXmxw7N7+shgBim2YSo/8PTUHlrIa+meau0trPJB DIiPOfRCnW1fSc3K3xyTIcK1kYumZbvC3lRv83TM2cU193NOpriDYohXJJDerx29 Mkp0giYCkk1jPp4AttsfJrDaM47yHHP0h3HzTPZ4fEty9wf5mffzsU7vTXEiV1rS sh7P6FQDJmuWlkXFs2E1jPyvZi+TjKZU4RGKeyBkaa9f7Eb5BUBhkD7imzmGwUJm 49Nj1UyO03hGiXeYHebMVLdBABPPNPm+Y3aE7phCdsSQ5kUIOOj/69pFcWRbmQk4 /LJ78/lcCqJASLM0Z/tcCF8CAwEAAQ== -----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 346338103702124967442188738118910216331109 . . . . . . . . [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 2022-09-25 00:37:12 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2022-12-24 00:37:11 +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 'clarknow.testing.clarku.edu' . . . . . . . . [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 869952273454830700725260249936730260138753616101794906098043280382940599593949275973991127829185241919303442644773663781594391741877687075928350834321312407506298203860168877004018153268100393243415799716921449347375637699142992049008733878896550453368743977489760483302728981234683525415168737011832839064497063611381598295294326751926679566344519188439187368309123837294835330337727858780004488121751765884374382522276226626838660197033001388419289328901184449641824398400972954373868243972938677011264773778390547794256219378653794178924701165337422406649061251730154034004490063197981864063099872454819538577637282384686282756448164638364127220308918829784443872433004578494489716076388957496532359998334948348560640983947850221374451729403376380547067842708846048622762272449752325649639209704387631792125100426591046577584142098406498866478272735613069354394430463110108338117086982703981881525863750598628877253450266605410905030659434318130777742550783679297126997046715045104806706113399379912560346550322411144472531845765232602762203602859654914790459227466353046733817854197593822543931533565726971576798088839063649843060424931170848694919904500293642004653094993988052241571282720924203752077215162755981569955087517791 . . . . . . . . . . . . . . . . . . . . [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) ce50aede235ca06597f677a0254620fd4a223207 . . . . . . . . . . . . . . . . [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 (75 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'clarknow.testing.clarku.edu' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'testing.clarku.edu' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.testing.clarku.edu' . . . . . . . . . . . . . . . . [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) 00ef007500dfa55eab68824f1f6cadeeb85f4e3e5aeacda212a46a5e8e3b12c020445c2a7300000183724a910b000004030046304402202d724724c4792feb95b22cc58c6d924a8369d5a5ea9925b959016b72b20d84d302207b6178ce2f2c77c08236b561bac902662fb134c672f2c2dac8cf8ec1cc4ca76d00760046a555eb75fa912030b5a28969f4f37d112c4174befd49b885abf2fc70fe6d4700000183724a913b0000040300473045022100bcd0576ee6cbb6b3c12c922e99208714dbbddfda552d5b0bea4050ff516d942e02202ed7ea88e65f8ef667b6df1294db3c80be6fdd068b762f71539f36259ccf7443 . . . . [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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