citizenlab.co

Issued by R3

About this certificate

This digital certificate with serial number 04:50:1c:79:b4:8f:ac:bb:08:28:14:8e:ac:7f:7a:23:d1:74 was issued on by Let's Encrypt.

With 2 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=citizenlab.co

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate will expire on

Certificate Details

Serial Number (hex): 04:50:1c:79:b4:8f:ac:bb:08:28:14:8e:ac:7f:7a:23:d1:74
Serial Number (int): 375709583394734737448326224203170644742516
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 83:79:0c:da:a4:a8:cd:74:6b:94:d1:8b:36:ef:c8:00:7d:c8:1c:e1
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): fb:a4:44:0b:d8:8b:13:e2:08:7c:c9:e8:3c:e6:a4:e5:b6:6b:d6:6f
Fingerprint (sha256): 28:b3:0f:42:91:f4:6d:1e:23:92:06:9a:67:47:67:50:ed:0b:05:7c:ad:fc:45:30:d5:e5:22:ad:fa:84:0e:78

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

Revocation information

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

Check the revocation status for certificate citizenlab.co

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for citizenlab.co

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

citizenlab.co
www.citizenlab.co

Other certificates including the domain name citizenlab.co

(limited to 100 certificates)
*.citizenlab.co
*.citizenlab.co
*.citizenlab.co
citizenlab.co
*.citizenlab.co
citizenlab.co
*.citizenlab.cl
*.citizenlab.co
*.meinaugustusburg.de
pl.citizenlab.co
*.hq.citizenlab.co
citizenlab.co
*.hq.citizenlab.co
*.hq.citizenlab.co
*.meinaugustusburg.de
citizenlab.co
api.inspire.citizenlab.co
citizenlab.co
demain-mont-saint-guibert.be
*.citizenlab.co
citizenlab.co
*.meinaugustusburg.de
citizenlab.co
*.hq.citizenlab.co
www.zukunft-pfaffenhausen.de
citizenlab.co
citizenlab.co
www.schiedammersmakendestad.nl
citizenlab.co
*.citizenlab.co
www.zukunft-pfaffenhausen.de
*.citizenlab.co
citizenlab.co
citizenlab.co
*.citizenlab.co
jobs.citizenlab.co
*.hq.citizenlab.co
api.inspire.citizenlab.co
*.hq.citizenlab.co
*.citizenlab.co
*.citizenlab.co
epic.citizenlab.co
citizenlab.co
jobs.citizenlab.co
*.citizenlab.co
*.sandbox.citizenlab.co
jobs.citizenlab.co
*.meinaugustusburg.de
demain-mont-saint-guibert.be
*.citizenlab.co
jobs.citizenlab.co
design.citizenlab.co
*.hq.citizenlab.co
*.citizenlab.co
on.citizenlab.co
jobs.citizenlab.co
*.hq.citizenlab.co
www.zukunft-pfaffenhausen.de
www.zukunft-pfaffenhausen.de
citizenlab.co
*.citizenlab.co
citizenlab.co
citizenlab.co
jobs.citizenlab.co
epic.citizenlab.co
jobs.citizenlab.co
citizenlab.co
*.citizenlab.co
citizenlab.co
www.zukunft-pfaffenhausen.de
jobs.citizenlab.co
citizenlab.co
citizenlab.co
*.citizenlab.co
citizenlab.co
*.start.citizenlab.co
*.citizenlab.co
*.citizenlab.cl
demain-mont-saint-guibert.be
demain-mont-saint-guibert.be
*.citizenlab.co
*.citizenlab.co
*.meinaugustusburg.de
demain-mont-saint-guibert.be
*.start.citizenlab.co

Certificate

The complete raw certificate details for citizenlab.co in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAtgwbnr2u4IYoTVmfFf0I
o8vkp4ZSmvTXJyku/wxvZMcEc1wDyfaVXTg4323Hqfka22wvb8jeUPFn6S1bxmGP
tkJZKT51a8K/E+8R9IrIPcU5txXspdZl10C5iFxOL+EaUeet3qhF+wbsMs7gaZnh
1YKqk5g8Hjtjn3ojlc0K5Bo+SYULuInEToZkt13ZBb4IKLFT8fCHhqi4MfAwRX9E
GZz9znROYNKZIqjEnIMDV4cWgh+VBMM5sbIRejPFCmxZ1PvZhUT7UTMI5rR+CFHF
+GEY4SDiRvlANNaugsjqGgt/NaipmBwzupyph2S4it05MQ54DdgEFAIun2eQjwMQ
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 375709583394734737448326224203170644742516
 . . . . . . . . [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 2024-03-31 02:22:12 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-06-29 02:22:11 +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 'citizenlab.co'
 . . . . . . . . [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 22981342127375671541286868207999896789827757862016582008718236229618115065211133207698743086605740554980958253703851450412581687104120747850585548419745311935794895904421273859841389598809925019716373280486147952996135231492100872506890488935692406561069029229963547626471700281043694219430699704887221367200760512966995365485591562175447725767924065177863817209308688049065285993604442076437635687044657135705581641680520081640724234228241016108168959225976094732236139250627716632810977071786914236851839866156999620548525948383804933294864807961430821065493583548724890608628496290322928046508756903769884967768117
 . . . . . . . . . . . . . . . . . . . . [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)
							83790cdaa4a8cd746b94d18b36efc8007dc81ce1
 . . . . . . . . . . . . . . . . [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 'citizenlab.co'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.citizenlab.co'
 . . . . . . . . . . . . . . . . [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)
							00f2007700eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018e92876f0a000004030048304602210086339949c37881da9001884ebc0ed76ab362efef66494a487913b7a3aa973489022100f6c3233b359b1e4d832e0310f3d3a25f6be84935e07b801c1f56286aedac05c8007700a2e2bfd61ede2f2f07a0d64e6d37a7dc6543b0c6b52ea2dab78af89a6df517d80000018e92876e920000040300483046022100e21b4757bd9b3d6c0aa23a23070cf70c53087ebec4f09fd72e21b06a595293460221009cae8daacece931d57dd3eeb4e370ef7453c64282d3b70782c82f1df682fdf6c
 . . . . [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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