www.ianchan.dev

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:9d:16:3a:52:1d:4b:55:83:52:bd:a8:cd:71:88:1c:63:15 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:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

Certificate Subject

CN=www.ianchan.dev

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:9d:16:3a:52:1d:4b:55:83:52:bd:a8:cd:71:88:1c:63:15
Serial Number (int): 314790735236471660839766067744944907117333
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 73:85:29:14:af:85:c8:b5:ee:18:7e:fe:45:e5:e9:b4:20:84:fc:cf
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 9d:ea:a9:a1:e8:83:c9:8b:0c:ad:dc:40:d8:c1:7b:5e:46:f8:ca:d1
Fingerprint (sha256): c3:a8:fd:b7:79:a5:6b:3d:a9:b6:c0:f0:e2:75:07:1c:27:ea:9b:c8:2f:e5:72:41:d7:0d:09:6f:6f:88:04:4d

Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x3.letsencrypt.org

Check the revocation status for certificate www.ianchan.dev

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.ianchan.dev

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

www.ianchan.dev

Other certificates including the domain name ianchan.dev

(limited to 100 certificates)

Certificate

The complete raw certificate details for www.ianchan.dev 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 314790735236471660839766067744944907117333
 . . . . . . . . [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 'Let's Encrypt Authority X3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-06-05 03:58:45 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-09-03 03:58:45 +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.ianchan.dev'
 . . . . . . . . [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 841349316416010370684005014746965225342474641250973442554407549250169178805037667977823410308665045436892595210609098419733147711416868861904826949962833578324321572858594559978517597709098469344288024952985009496735824622171747903549393998074746669710248657261035402093945903273841440696315670793393889923707278859814250703447405270671615822279947194317568983517717690669760577569403355413115129869659147812219878416350222685143396535440135661652634380849771420622957135712585918398791747246236418844095062816840304151138291028783985385793446855919717936754865666529217117361675050244261916961443293949457825564584977400805187442907963929202381590783856575210370621086965030610306375674584760344826683349443164698175733606090993836299806610604061356044185713628952491801318158810670980895069115011960356427670160004572470930163099460613743868341798425379138814970322935464928590295338064578051335605799972303774496338711806291496554503663850942262694468063005877956647098221383104300032073098629016853185596786853117360746830706284324176899346906686550811812146076625872681629608588476294318452258506250641819854242207500329396408923576720845069765680308110938709596032788531948951775979849565839681547657839919515304695808106564587
 . . . . . . . . . . . . . . . . . . . . [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)
							73852914af85c8b5ee187efe45e5e9b42084fccf
 . . . . . . . . . . . . . . . . [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 a84a6a63047dddbae6d139b7a64565eff3a8eca1
 . . . . . . . . . . . . . . . . [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 (99 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://ocsp.int-x3.letsencrypt.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://cert.int-x3.letsencrypt.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 (19 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.ianchan.dev'
 . . . . . . . . . . . . . . . . [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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f1007600747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc560000016b2600f4870000040300473045022100b5988b7bddb69e1a325af69377917d25739227ffdca21c4d4f06ef388887f6b4022033abb31df65ff00e0f1d457e28a01e073dc0386f50212716e39edaaa347a22b700770063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d0000016b2600f46c0000040300483046022100803b8be6e2977ab0b1de972e4466d7f53eefd9da2128124a3bfd990dfab42679022100e18f52ef9ef6549e86b3ddcd3653dc5dc8669beded123cc864f64602feb33a91
 . . . . [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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