www.alexthedeveloper.com

Issued by R3

About this certificate

This digital certificate with serial number 04:0b:d3:aa:18:4a:70:0c:c0:79:dc:69:17:7b:1c:10:da:3b 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:
  • 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=www.alexthedeveloper.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:0b:d3:aa:18:4a:70:0c:c0:79:dc:69:17:7b:1c:10:da:3b
Serial Number (int): 352473600053423270105320052341147928943163
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 08:43:d5:ed:a1:32:96:2a:54:cb:25:51:53:fc:c1:f8:0e:0b:3f:68
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 3d:73:c2:7d:9c:63:54:00:d0:5a:97:72:51:67:32:f6:18:b9:91:d6
Fingerprint (sha256): c2:4a:c5:88:43:3d:fd:ae:ac:43:6c:d7:7f:10:ee:a2:82:60:32:59:c8:d6:77:53:dc:ce:30:2d:96:1f:91:a8

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

Revocation information

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

Check the revocation status for certificate www.alexthedeveloper.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.alexthedeveloper.com

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

www.alexthedeveloper.com

Other certificates including the domain name alexthedeveloper.com

(limited to 100 certificates)
www.alextomkins.ca
alexthedeveloper.com
alexthedeveloper.com
git-hook.randomforest.ee
alexthedeveloper.com
eliteprogrammers.ca
alexthedeveloper.com
www.alexthedeveloper.com
alanmortoni.com
www.esightcompany.com

Certificate

The complete raw certificate details for www.alexthedeveloper.com in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwlhPvtBabCM0PDtRw077
3eS2Y2B4gfcwrE558DJ6aObgzD1DoqZxwumT82aygLtC+Wv7kEKWKm7XqIzO1drT
3LL0TtWfrPAhmaWfjeaGSnO0HW1cyzjB1XK+OtIoLtvpkYqn6oTZD5sylRZUNHck
ufyvLzU9Cyc2fKApWkLAEfcwu7k7WeWRP6Z3PTvxnS1VgYf4kM8LkrQ1UHSvbjd1
UyhmK3YYWFwhHqSYuUKU7Nr3ECju/DPD6oAPBZKlwe3daRXcFD1X4ZUKutXtibvo
avl8/2tVIBQ8lqfTdol4EZwDl/V5DErpa6bKOehl9mPa4JkGbR9i7XSgS+eBkebc
RwIDAQAB
-----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 352473600053423270105320052341147928943163
 . . . . . . . . [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 2023-11-20 00:02:02 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-02-18 00:02:01 +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.alexthedeveloper.com'
 . . . . . . . . [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 24533779189755074722891290060562177636095114395705914005095904565897821305334626678852272515379673206417253797892275040824263724924951608351648175199170522924852277809793697660709377476972825271746696624077585773086857040941035753661804989438683452907025615976593320792355001128804028131994857320654231357507031794268168715821350284920285026017621683643344954448503715512330762416311468292128198179827911519129142244747832393575925155552686781341091246846766978418539900450994985011998462863024019405840027087589718910157300301866277398642745600110505513355777213000248749756914931340810385200901287709907152221428807
 . . . . . . . . . . . . . . . . . . . . [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)
							0843d5eda132962a54cb255153fcc1f80e0b3f68
 . . . . . . . . . . . . . . . . [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 (28 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.alexthedeveloper.com'
 . . . . . . . . . . . . . . . . [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)
							00f00076003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018bea3faaf7000004030047304502203b93fa449590bd6c0c043d5462a56068625098dfe28cfa54b21703a40155d3ae02210090e803352fe6fdfdc9733b29e8e516155d3773b6491283994b0f3090cc63a4fe007600eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018bea3faafd0000040300473045022100aff40d529396477aa188e35f4efb86fe408fbf04e26c6f820d79749192bd6ff80220599147082251467af4d1e9b09622b256c815ae48d97c4819d71be8fbca657b6d
 . . . . [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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