www.project-a.com

Issued by R3

About this certificate

This digital certificate with serial number 04:cd:39:a7:14:e2:e6:21:33:ea:40:85:76:cb:56:85:07:ad 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:
  • 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=www.project-a.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:cd:39:a7:14:e2:e6:21:33:ea:40:85:76:cb:56:85:07:ad
Serial Number (int): 418283662478793465610686857545027487598509
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 86:33:65:d0:9e:93:e0:16:61:ca:4e:36:48:8b:b7:9a:86:39:b5:2a
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): dc:fd:72:a4:dd:a6:0f:c1:c0:36:21:2b:4a:ad:c1:26:2e:c7:71:b9
Fingerprint (sha256): 54:4a:06:6c:de:81:04:3d:00:15:d7:ef:5c:e0:f1:bb:84:e3:43:6d:b0:93:60:ab:42:09:91:51:e7:7e:3e:56

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

Revocation information

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

Check the revocation status for certificate www.project-a.com

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.project-a.com

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

project-a.com
www.project-a.com

Other certificates including the domain name project-a.com

(limited to 100 certificates)
www.project-a.com
brian-poole.com
insights.project-a.com
data-days.project-a.com
pakcon21.project-a.com
autodns.project-a.com
2015.project-a.com
www.project-a.com
2015.project-a.com
*.bi.project-a.com
www.project-a.com
kfz-nexus.project-a.com
karriere.project-a.com
testing.project-a.com
testing.project-a.com
insights.project-a.com
marmosad.ca
insights.project-a.com
testing.project-a.com
www.project-a.com
www.project-a.com
knowledge-conference.project-a.com
optimus-wib.project-a.com
www.project-a.com
karriere.project-a.com
sip.project-a.com
testing.project-a.com
frida.project-a.com
insights.project-a.com
*.project-a.com
optimus-wib.project-a.com
www.project-a.com
*.project-a.com
www.project-a.com
tresor.project-a.com
*.bi.project-a.com
*.project-a.com
autodns.project-a.com
2015.project-a.com
insights.project-a.com
www.project-a.com
autodns.project-a.com
testing.project-a.com
dwh.tt-bi.project-a.com
autodns.project-a.com
*.bi.project-a.com
2015.project-a.com
insights.project-a.com
tekoadm.ch
frida.project-a.com
www.project-a.com
testing.project-a.com
tresor.project-a.com
autodns.project-a.com
insights.project-a.com
*.bi.project-a.com
autodns.project-a.com
*.bi.project-a.com
*.project-a.com
vincent.project-a.com
autodns.project-a.com
app.project-a.com
www.project-a.com
www.project-a.com
www.project-a.com
www.project-a.com
www.project-a.com
2015.project-a.com
www.project-a.com
autodns.project-a.com
www.project-a.com
beacons.ai
2015.project-a.com
autodns.project-a.com
testing.project-a.com
app.project-a.com
sip.project-a.com
testing.project-a.com
*.project-a.com
testing.project-a.com
www.project-a.com
sip.project-a.com
optimus-wib.project-a.com
autodns.project-a.com
apple.armm.wtf
testing.project-a.com
autodns.project-a.com
www.project-a.com
www.project-a.com
2015.project-a.com
insights.project-a.com

Certificate

The complete raw certificate details for www.project-a.com in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIE/jCCA+agAwIBAgISBM05pxTi5iEz6kCFdstWhQetMA0GCSqGSIb3DQEBCwUA
MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD
EwJSMzAeFw0yMzEwMjYwNzU2MzhaFw0yNDAxMjQwNzU2MzdaMBwxGjAYBgNVBAMT
EXd3dy5wcm9qZWN0LWEuY29tMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKC
AQEAstQJUKO0U/2t+cD4H1DwvQLs0qqevqmFgzJTQkCf66uzfmjyHY8m0qTSoyUu
Kewjkb2skfd94UNIK2r/XPvMV0Ju6KXvFsCWGEUZOA5P/5+vMFUK6bx6zGinN+7N
Fqoow/zLzDiS4h6hc210E7KQHRZYyMY3ChQxG5KD+bqgE4TxJGHuf8V9p2zHHoQa
qBYXXpOsjsxSvPVbbA0T+XAqHo5QcoebnG/403Z6MqntHhqy3Gy0w6jU6YJFFSVV
jNtMNiXvhQc69BcsvaPNeuKv+a+PolrTnHPdf4KvFCkJ/UQGHw+QFSs/hIo4cF38
yoNP+3nb8qq37ZPIp2FrUPrX+QIDAQABo4ICIjCCAh4wDgYDVR0PAQH/BAQDAgWg
MB0GA1UdJQQWMBQGCCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0G
A1UdDgQWBBSGM2XQnpPgFmHKTjZIi7eahjm1KjAfBgNVHSMEGDAWgBQULrMXt1hW
y65QCUDmH6+dixTCxjBVBggrBgEFBQcBAQRJMEcwIQYIKwYBBQUHMAGGFWh0dHA6
Ly9yMy5vLmxlbmNyLm9yZzAiBggrBgEFBQcwAoYWaHR0cDovL3IzLmkubGVuY3Iu
b3JnLzArBgNVHREEJDAigg1wcm9qZWN0LWEuY29tghF3d3cucHJvamVjdC1hLmNv
bTATBgNVHSAEDDAKMAgGBmeBDAECATCCAQQGCisGAQQB1nkCBAIEgfUEgfIA8AB3
ANq2v2s/tbYin5vCu1xr6HCRcWy7UYSFNL2kPTBI1/urAAABi2szMP4AAAQDAEgw
RgIhAKJ8z4DXW0abmTBtHAI5u46CJ6Vbwu/5EzfwPkx6ufN4AiEAoYSZvVJI4E6p
Nq8DQaQA4pRQY0u+jYHM/x1MuiZ3yHcAdQA7U3d1Pi25gE6LMFsG/kA7Z9hPw/TH
vQANLXJv4frUFwAAAYtrMzH7AAAEAwBGMEQCIA/+Dw513FurY85Dx9W3C4N4CS++
p7Z51y/i++flPAe8AiBB6eiKN7oGhdgdNIbYv0rO1ubeIBjFB+7+ayIC6pW07zAN
BgkqhkiG9w0BAQsFAAOCAQEAkqNgkbhqjdS454PT2ioErvDVeise2+H+19v/nPyy
X6rcneKx3hCufWSRTELZeA2gmxSnfyvMhEwrTxySsJkwkq8Jbat+5tcnd3uXM014
jRMyFcwrR0NiPlxuryckhCHLeE4ipKfO8r6NvyBWucUCaLojMIz2F6rsgk15bQ8N
RvKJuL6hBXEgqrTDZpq/l1wze8jPYwnPBMV0WYKPHcVqznz7ebw//XRauNNSI277
Y9xFvx4WmIiQX3gfGPln6Yi8xPIKXtpx4bzSqe7txcGA9NCpI158gb+OCvtM/tbP
cUmO8UMuPzGFXqcxFSyi4ZZ12kHSM2kNe2BumAoGdSdr/w==
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAstQJUKO0U/2t+cD4H1Dw
vQLs0qqevqmFgzJTQkCf66uzfmjyHY8m0qTSoyUuKewjkb2skfd94UNIK2r/XPvM
V0Ju6KXvFsCWGEUZOA5P/5+vMFUK6bx6zGinN+7NFqoow/zLzDiS4h6hc210E7KQ
HRZYyMY3ChQxG5KD+bqgE4TxJGHuf8V9p2zHHoQaqBYXXpOsjsxSvPVbbA0T+XAq
Ho5QcoebnG/403Z6MqntHhqy3Gy0w6jU6YJFFSVVjNtMNiXvhQc69BcsvaPNeuKv
+a+PolrTnHPdf4KvFCkJ/UQGHw+QFSs/hIo4cF38yoNP+3nb8qq37ZPIp2FrUPrX
+QIDAQAB
-----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 418283662478793465610686857545027487598509
 . . . . . . . . [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 2023-10-26 07:56:38 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-01-24 07:56:37 +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 'www.project-a.com'
 . . . . . . . . [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 22574977323214225572733997349710010162204486852351426933292462810701156893395256346917950486376629184425210012670442897662620146782837950712865684116089738597511551136258219665403334501937659207504486980282024325693027907387223264928280559371255788084173189497509994509422193557394563378942346505722177609163982862439025326713565899889709504015420309137500432436248771646739285022282829161734337979482626585706883872433045182777817946795296605849738809865472247794581720522579985965908343417257978026686492136035930741657573516466340946269300248320592494350294287059350405671964818648439208343036748292790772213405689
 . . . . . . . . . . . . . . . . . . . . [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)
							863365d09e93e01661ca4e36488bb79a8639b52a
 . . . . . . . . . . . . . . . . [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 (36 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'project-a.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.project-a.com'
 . . . . . . . . . . . . . . . . [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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f0007700dab6bf6b3fb5b6229f9bc2bb5c6be87091716cbb51848534bda43d3048d7fbab0000018b6b3330fe0000040300483046022100a27ccf80d75b469b99306d1c0239bb8e8227a55bc2eff91337f03e4c7ab9f378022100a18499bd5248e04ea936af0341a400e29450634bbe8d81ccff1d4cba2677c8770075003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018b6b3331fb000004030046304402200ffe0f0e75dc5bab63ce43c7d5b70b8378092fbea7b679d72fe2fbe7e53c07bc022041e9e88a37ba0685d81d3486d8bf4aced6e6de2018c507eefe6b2202ea95b4ef
 . . . . [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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