www.ianchan.dev

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:5c:64:3b:48:51:30:6b:bd:81:0a:ae:4d:e0:c7:31:29:56 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): 04:5c:64:3b:48:51:30:6b:bd:81:0a:ae:4d:e0:c7:31:29:56
Serial Number (int): 379888352095626428524263995983150032431446
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 39:72:27:d5:c6:57:03:4e:1f:06:ef:37:99:0c:c0:54:6e:c4:43:90
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): d0:53:82:d3:32:b1:a0:80:32:81:88:82:ba:f7:0a:a6:b8:0e:36:03
Fingerprint (sha256): 27:8a:2b:b9:58:fa:2e:93:73:2d:dc:bf:10:c4:de:f5:df:a1:4f:4d:4e:50:98:27:ff:31:6f:6b:d3:5b:e4:98

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-----
MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEApjrSGPPpOHA6thAz3zqn
tao6B1gHMtULDCRSOYBAgrroCHoJlOyy7EhWIkD9s66gxmVmQDHxjw/bqPqFoeVj
SkIUAl/zMNauNlZyIq/rcn0tBk+0uep1fwSu4nNp3RBFbui734jMdwExNviYX5Y/
/IbKBQ6h/wPxJ6FW5KIS4Um53bxE/wmWFDRFFQ/2gKo7PTBdUVwkali+/gMAEse0
t8nd6V+Cyk889brFFRKUWLPbVvkc6XKBN3vghPULwUZqkbjw+lsGbwSZNE8p1htt
TJTX55c8ciR/FNEVj4ETEKxzliNSbmJSxDLcT7KB/7NlZxeu/4JRDpMa9WMKsdgw
OjOcgSjW7yAplAA6OGJc0+jkrB9Yls7WvjSK04G+5VjSUtjbgcvBomybxtx1h0RQ
zJEEx/z/McbnLvBfnU5Jnh+bKf/HHgyMKk4cn+csonHXH8T6mOY6FXWB8Pybr+IT
V+rhHV5iVSywnpVdDtQ/SWQtS8K4Hz2COVn9hnZSHhCBpaRgaF2mNKcbjAY44JR5
HbSB5PEdnEOTTyrL3ofvYhCPtKMeghjr/dCjv1l0cnek5GK/g6cW72n1WPrTcEH1
xyoJUSaKZqGjjDJgJEjBo1abB/gouZPsMZrQ7srB8x8rayAGq0V+qzmDn5tyOlp5
JwgxPYkouudPo3W/JgC/jd8CAwEAAQ==
-----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 379888352095626428524263995983150032431446
 . . . . . . . . [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 2020-02-01 06:33:57 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-05-01 06:33:57 +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 678158288308101999994124165390112316105552716216564920143310517502548055853565390204390230630449791840930870622149821222841634052537332582044085859620255486729943906961923922366229910133966034270533466994104574937649298328862799026846124898740367649476779284861291949954790574430683997671001257954060768018144711396880831578428604412136677273910958844578444150408738227758741323065849129770365930874882409870393674218914891837940731893888237203828169082949881649526993235388322594426260332563284852597845208525785461714849466009483360260542164306443425706584023588908923806688260494265605443230191191152668781679314541912251790343498277424047383999589052216407953887609870336023121645102242319042396535293822274375241327574716895946403643833474882301644177156038141206776720977256824195260523571404465107726228429828567807073625106262269660761799209674709883811260007485498414850523738099829517770586898185832904231092979775392331557036971741351418743541801934476742805724599718388726224543605900253944550224852892324999031322547667022171958188208540220981027803536034025567199601458142036351107136457760428160015446341202249199398445963956739564704654430157416873063579228609542354217648901973121542523659840314076432240900149579231
 . . . . . . . . . . . . . . . . . . . . [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)
							397227d5c657034e1f06ef37990cc0546ec44390
 . . . . . . . . . . . . . . . . [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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef007500f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016fffaba8d40000040300463044022026db9d283e02a130033df2193746ce75eb42e09875f0361030a1de867d132335022070c671955bf0143c912d76533d72503b1d5430f45b358fc2d25c255b831b68ab00760007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016fffaba8fb000004030047304502210084429bea4dcee701c8843e13aebdb040cbed1f503578eedebaac4b484956e7b602200de95e1bd0833f854c96f03adae8d801ce7917b242018f523cdfe64561dc9f61
 . . . . [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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