www.letssueicann.com
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:cf:7f:ae:75:a2:79:c1:b7:b4:7b:3a:da:f8:1b:e8:8d:46 was issued on by Let's Encrypt.
With 12 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:
- Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)
Certificate Subject
CN=www.letssueicann.com
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:cf:7f:ae:75:a2:79:c1:b7:b4:7b:3a:da:f8:1b:e8:8d:46Serial Number (int): 331945025548947639083606580666507094166854
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 58:94:80:9e:e0:71:24:5d:07:90:de:6a:3c:a5:ec:ae:df:5d:54:49
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 74:00:fe:a5:0e:1d:dc:88:bc:4f:25:13:39:f1:e6:fc:18:c5:00:90
Fingerprint (sha256): ba:48:88:68:36:57:2c:e3:f3:b8:92:10:7c:d3:09:7f:fb:a2:14:e6:c7:df:5f:9e:ac:81:7b:f5:e5:eb:87:f6
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate www.letssueicann.com
12
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for www.letssueicann.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
cryptoallthing.com
icannclassaction.com
icannclassactionlawsuit.com
icannisdead.com
icannlawsuit.com
letssueicann.com
www.cryptoallthing.com
www.icannclassaction.com
www.icannclassactionlawsuit.com
www.icannisdead.com
www.icannlawsuit.com
www.letssueicann.com
icannclassaction.com
icannclassactionlawsuit.com
icannisdead.com
icannlawsuit.com
letssueicann.com
www.cryptoallthing.com
www.icannclassaction.com
www.icannclassactionlawsuit.com
www.icannisdead.com
www.icannlawsuit.com
www.letssueicann.com
Other certificates including the domain name letssueicann.com
(limited to 100 certificates)
Certificate
The complete raw certificate details for www.letssueicann.com in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGXjCCBUagAwIBAgISA89/rnWiecG3tHs62vgb6I1GMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTEyMDIxNTA1NTJaFw0y MDAzMDExNTA1NTJaMB8xHTAbBgNVBAMTFHd3dy5sZXRzc3VlaWNhbm4uY29tMIIB IjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvgNJrgjV2yITy4hRYZ68tRcr 5c+I8wtZUe8ckMRuQovZNfW6sklYQGzj/PTbFySRpGKHPSwA/cCx/4ehQKpdctui tMCsztrm2d+XnbXu45QRqeSKRr5RMVkHumnkynwid0klnG7lUF5rzumXNSmKiXU7 C7tVsW65RF8SkfsVq09GTBR60BoMH9m9NK/h4vioT5qxmrWh7Pj4VI25HkaCD2am rJjiV+pBD57z9qtE0+LD17veTTdwsdQSl5Z3LOWVJxKGyLpqSkIeIfVwDGb0pdw6 9r9Z8Y+lE3NBqAIkAXGNJApnAGDFsu9U4QusOZO+gzrnfbQa41kmDcQiO+kxawID AQABo4IDZzCCA2MwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsGAQUFBwMB BggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBRYlICe4HEkXQeQ3mo8 peyu311USTAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86jsoTBvBggrBgEF BQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14My5sZXRzZW5j cnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14My5sZXRzZW5j cnlwdC5vcmcvMIIBHQYDVR0RBIIBFDCCARCCEmNyeXB0b2FsbHRoaW5nLmNvbYIU aWNhbm5jbGFzc2FjdGlvbi5jb22CG2ljYW5uY2xhc3NhY3Rpb25sYXdzdWl0LmNv bYIPaWNhbm5pc2RlYWQuY29tghBpY2Fubmxhd3N1aXQuY29tghBsZXRzc3VlaWNh bm4uY29tghZ3d3cuY3J5cHRvYWxsdGhpbmcuY29tghh3d3cuaWNhbm5jbGFzc2Fj dGlvbi5jb22CH3d3dy5pY2FubmNsYXNzYWN0aW9ubGF3c3VpdC5jb22CE3d3dy5p Y2FubmlzZGVhZC5jb22CFHd3dy5pY2Fubmxhd3N1aXQuY29tghR3d3cubGV0c3N1 ZWljYW5uLmNvbTBMBgNVHSAERTBDMAgGBmeBDAECATA3BgsrBgEEAYLfEwEBATAo MCYGCCsGAQUFBwIBFhpodHRwOi8vY3BzLmxldHNlbmNyeXB0Lm9yZzCCAQIGCisG AQQB1nkCBAIEgfMEgfAA7gB1AG9Tdqwx8DEZ2JkApFEV/3cVHBHZAsEAKQaNsgia N9kTAAABbsdcaYQAAAQDAEYwRAIgYAQ3qrVX/tC8KihqR2eapMZddKDso2Qk/wob K5xeyi4CIFf1MvoZDppH1zHlAhuZLc0oOid2oRabGerIj62udm4iAHUAB7dcG+V9 aP/xsMYdIxXHuuZXfFeUt2ruvGE6GmnTohwAAAFux1xphAAABAMARjBEAiBZy+I7 9aVhkafkz9m6SbNSd0Vb+lu6EKw/Dm1Yg1YPJQIgAIKDsxn9LG7gWdJR9SfKg0zC y+YcVy56/8vONb5vQt8wDQYJKoZIhvcNAQELBQADggEBAEAuJezGdqCU2YMQMPuG upkJfWQH23HhkiJd78R8vjCfrpevNGc6FNDyoBg7x0IIOf2ZMlIAQ8pZ8GRDNYaI 6BgkEuEqaKm2hTKSmiw2bJGh55abjj2fsjYzsz1REtZOCNaKjiA2DEdqHt2Ry7IA RamQlc0pfIlAiczrsYTzULFR3r2MR6VQp4tOgmlmMwaY1T813cdeTGV4NJ/Blrb3 JUJ0Gp3pp5djn4JBSDBGE6OjD1LeyHMYdFJhfdTfPjomvz0ASPIfNA7H047HnbJ6 Hz/cNNh30qcjytgzGQN5UG7wjWWcFinq0QSA5q1TNTK6GmFtmBf7IJRRfzgHJrQ5 AFs= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvgNJrgjV2yITy4hRYZ68 tRcr5c+I8wtZUe8ckMRuQovZNfW6sklYQGzj/PTbFySRpGKHPSwA/cCx/4ehQKpd ctuitMCsztrm2d+XnbXu45QRqeSKRr5RMVkHumnkynwid0klnG7lUF5rzumXNSmK iXU7C7tVsW65RF8SkfsVq09GTBR60BoMH9m9NK/h4vioT5qxmrWh7Pj4VI25HkaC D2amrJjiV+pBD57z9qtE0+LD17veTTdwsdQSl5Z3LOWVJxKGyLpqSkIeIfVwDGb0 pdw69r9Z8Y+lE3NBqAIkAXGNJApnAGDFsu9U4QusOZO+gzrnfbQa41kmDcQiO+kx awIDAQAB -----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 331945025548947639083606580666507094166854 . . . . . . . . [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 2019-12-02 15:05:52 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-01 15:05:52 +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.letssueicann.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 23986899223978589509297599136672970003551630063207503288160631273594984648991256988603303076861299761185672198276257175213486254675190424337420032065436528050433384445744797302434750303691017751620534335213277811644049461350662504763927998670140768119452422025940908922731293641721780725508328034222904641087984993097786484456826971090382131436161336372534670966271940574231543805706621958298314491979892242688441275868234405046079288943842928777564804866527293829483293439783324736374052438977667201149636569277195047626337626420069714800816886064864770762100029825090285221104376556726988883906472995014474421842283 . . . . . . . . . . . . . . . . . . . . [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) 5894809ee071245d0790de6a3ca5ecaedf5d5449 . . . . . . . . . . . . . . . . [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 (276 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cryptoallthing.com' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'icannclassaction.com' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'icannclassactionlawsuit.com' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'icannisdead.com' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'icannlawsuit.com' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'letssueicann.com' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.cryptoallthing.com' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.icannclassaction.com' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.icannclassactionlawsuit.com' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.icannisdead.com' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.icannlawsuit.com' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.letssueicann.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 (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 (243 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes) 00ee0075006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016ec75c698400000403004630440220600437aab557fed0bc2a286a47679aa4c65d74a0eca36424ff0a1b2b9c5eca2e022057f532fa190e9a47d731e5021b992dcd283a2776a1169b19eac88fadae766e2200750007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016ec75c69840000040300463044022059cbe23bf5a56191a7e4cfd9ba49b35277455bfa5bba10ac3f0e6d5883560f250220008283b319fd2c6ee059d251f527ca834cc2cbe61c572e7affcbce35be6f42df . . . . [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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