cd.am

Issued by R3

About this certificate

This digital certificate with serial number 03:a7:fa:e3:3b:ae:da:c8:95:3f:6a:96:7d:2f:d8:50:99:88 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=cd.am

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:a7:fa:e3:3b:ae:da:c8:95:3f:6a:96:7d:2f:d8:50:99:88
Serial Number (int): 318497499931926156827390843329501325203848
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 4f:ed:8a:e7:2a:b3:5a:64:29:17:ab:98:62:6a:e6:2d:6f:b3:be:2b
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): d3:71:e5:ee:60:c8:28:f7:13:40:b1:15:7c:a5:84:57:74:d8:9a:2d
Fingerprint (sha256): 09:93:8c:34:89:0a:af:0f:68:0e:b4:08:06:f3:81:78:33:19:89:75:45:23:2a:8e:88:ec:98:c3:b5:eb:c6:4b

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

Revocation information

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

Check the revocation status for certificate cd.am

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for cd.am

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

cd.am
www.cd.am

Other certificates including the domain name cd.am

(limited to 100 certificates)

Certificate

The complete raw certificate details for cd.am in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----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-----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 318497499931926156827390843329501325203848
 . . . . . . . . [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 2024-02-29 22:16:11 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-05-29 22:16:10 +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 'cd.am'
 . . . . . . . . [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 1021966720759739603483621703461596288395567506527902438479764252095303642758345243581547126863928942568626983099799225001242442472763463501386215596005731870534724633316417662102541515553647531255358376101018579228182052815072832772832802745122810770766271748278902179056834607904197814430106804362146489197425454733421946774924489617583459906559862761665645952637990255261547746104705991000109798644907700293832853315603376260658808308799480764450145184406020107681009271557048501497477928875833350840061881560522249992708818751005927913637801174170210523737667234728444002477193072733120953606485446248888178137543728788248670906140671162991275772397275209766005582524206626871341543295712760864604525147096721325668755479047810002525508202335788454736757761580549762614839745658166427653698202922460687628845782882417077391701994615833353146664968228408283561276566370158353701760143559086177861018912713891034276050813530131302764433497910255358838677030898893208315240752872383971843733977895867987600205561900638543000049819151723140503801985183199937813900091270842385264957335343416773780685958720248853274979067961830392508933737876345067680562159580276667912932330212310709839458043061576447984949590280483086464912775625829
 . . . . . . . . . . . . . . . . . . . . [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)
							4fed8ae72ab35a642917ab98626ae62d6fb3be2b
 . . . . . . . . . . . . . . . . [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 (20 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cd.am'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.cd.am'
 . . . . . . . . . . . . . . . . [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)
							00f00077003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018df72767a60000040300483046022100d568f5ef4ef575871c997298cdc2fa00d81b6916c7ca1ed9870f81534de9d813022100ca6f4babb95e777463dd3621f7329a6907a4b13e3413be018a530948686c57f5007500a2e2bfd61ede2f2f07a0d64e6d37a7dc6543b0c6b52ea2dab78af89a6df517d80000018df72767a9000004030046304402205b8c7cd76dc12d2253d1586a29da52441867cb662d8ea8a36d325d9d0ba7a62a0220642536647a977952de31cf00c44076e575964f507085aed91b4b4a5bbbff8728
 . . . . [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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