www.ianchan.dev

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:54:0e:bc:18:d8:e4:a2:55:65:05:73:8b:fb:27:8d:c0:f9 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): 04:54:0e:bc:18:d8:e4:a2:55:65:05:73:8b:fb:27:8d:c0:f9
Serial Number (int): 377052448396112083309441778413955909009657
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: f7:8a:69:4d:5e:25:d7:e9:be:45:24:5d:1b:f4:ed:24:94:65:19:01
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 55:92:90:9a:2a:6d:c1:0a:3b:ef:e5:75:8d:9e:bf:aa:43:73:e3:df
Fingerprint (sha256): a8:5c:c8:59:dd:2f:5a:31:2a:01:5d:45:89:57:e5:ff:f7:a1:5b:7d:5a:9d:15:6a:e6:36:f5:4b:a6:94:bd:6f

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 377052448396112083309441778413955909009657
 . . . . . . . . [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 2019-12-03 04:17:26 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-02 04:17:26 +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 646640277056141419157426360820879507140779867874334125015693470671765913528278723003443873892641660165206075232576179173315341374558174705711268907415268211865092389428679867058596367634774821298416436259257371983786141863285366518043886929925666926018511813470643798036303414608426820647544263248406648874429683831586866875151196832982934281594079615278067904075622964192837895830284371120380093761190249184212076329072639306355392583425008321245963783176919151309275497349086492865881313251461083715711938332580600435740508443585923581344972035018713278901578313267303923204418909731508332776895723077371967398148407725050882859703521887761922368287437587499414104845674302180838241553669484466348159527427341137202162184915044596637248222957994607841418620510542275754792643054679073069560027900283522945900237296059453254913309963964234757348937858315400615287738334473332644038848545016229410050174412638393068132406654189153668239992506794154489365637327995424518513868123789018950302122676407966959394281404673754747252319426317533920738391689017920761141971204701743700228344805172771694404484738416537726178944051664228096032111271550060185316637580122709871852459987055956327628848398375494223364463708194505157439950889677
 . . . . . . . . . . . . . . . . . . . . [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)
							f78a694d5e25d7e9be45245d1bf4ed2494651901
 . . . . . . . . . . . . . . . . [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 (247 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes)
							00f20077005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016eca311b3f0000040300483046022100c7bd2be375a9ccffc8ee0a1f99098976372d295e6fa43dac9171db1c8f5054f8022100b5a4533a8229f03fb514e892b57ce5f7e628a36d6ef8bd19ee5017de6116175f007700b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016eca311b2e0000040300483046022100ca34a5a29e06401de9262637793f80fa8f1071c41b7a85d58fe311c517fa127b022100d2e6996126f38d88d1b47960948a0482389b816af387a342f1ebf993a3afe474
 . . . . [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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