*.is-a.dev

Issued by R3

About this certificate

This digital certificate with serial number 04:31:84:6d:e2:1c:3c:38:a5:e1:75:db:66:b2:4e:6f:46:7e was issued on by Let's Encrypt.

With 2 subject alternative names this certificate can be used to secure multiple fqdn's. This certificate is currently not expired, we haven't checked the revocation status of this certificate but you can do this simply on revocationcheck.com. 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=*.is-a.dev

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate will expire on

Certificate Details

Serial Number (hex): 04:31:84:6d:e2:1c:3c:38:a5:e1:75:db:66:b2:4e:6f:46:7e
Serial Number (int): 365299008348029757047097342102913925727870
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 76:2c:f7:fb:35:48:aa:ff:42:70:84:68:c6:55:58:22:97:1b:41:8a
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): b2:7b:f1:bb:81:60:c4:f6:f2:ee:3c:cb:31:d9:39:3d:73:9e:30:9b
Fingerprint (sha256): 36:34:4d:58:8d:83:6d:a0:dc:35:0f:3e:a4:03:2d:37:2e:0c:6c:51:49:24:e7:da:61:cf:bf:52:ad:d6:05:90

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

Revocation information

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

Check the revocation status for certificate *.is-a.dev

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for *.is-a.dev

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

*.is-a.dev
is-a.dev

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Certificate

The complete raw certificate details for *.is-a.dev in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIE6jCCA9KgAwIBAgISBDGEbeIcPDil4XXbZrJOb0Z+MA0GCSqGSIb3DQEBCwUA
MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD
EwJSMzAeFw0yNDA2MDEwNjM5MDRaFw0yNDA4MzAwNjM5MDNaMBUxEzARBgNVBAMM
CiouaXMtYS5kZXYwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDI08ms
qpQVbncB9g6Orl/PqbuYpbKDwwrl/XDYDUXKwgpZVuMiIT6cj5Oz1/qZZbPGozHn
mVwDrcdJsLfJJooorh5kHDUn3m+d/NDfGeVWBIfC7DatFT4FyBb1Da+tuodtatWa
Wj9nC2w24FD3o42PguAj0uligiwRstSBGFyJPo/bxntjuhZrH8xlG6JOd3pI5Pom
LqDBcDJIL0gDtiXD2uCvJ3eBqSaQyrp9U5czbbTD9QtftWDz8rx0ZL0cq3MRC/Wr
PDqJkAHNzU8oo3pi50/lYKq120R/vZtqWL0hkAkKoRRag0v2YMn6nkq2jP4PMBW8
W+1X9rQol9AICV8BAgMBAAGjggIVMIICETAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0l
BBYwFAYIKwYBBQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYE
FHYs9/s1SKr/QnCEaMZVWCKXG0GKMB8GA1UdIwQYMBaAFBQusxe3WFbLrlAJQOYf
r52LFMLGMFUGCCsGAQUFBwEBBEkwRzAhBggrBgEFBQcwAYYVaHR0cDovL3IzLm8u
bGVuY3Iub3JnMCIGCCsGAQUFBzAChhZodHRwOi8vcjMuaS5sZW5jci5vcmcvMB8G
A1UdEQQYMBaCCiouaXMtYS5kZXaCCGlzLWEuZGV2MBMGA1UdIAQMMAowCAYGZ4EM
AQIBMIIBAwYKKwYBBAHWeQIEAgSB9ASB8QDvAHUAPxdLT9ciR1iUHWUchL4NEu2Q
N38fhWrrwb8ohez4ZG4AAAGP0rzfYAAABAMARjBEAiANTXz1R191+yUcLICNOFwT
GaP69B67iHfd4bX2fwSCLwIgN79Ca+22AxV8XADW4ne4ca1bMzZOh4efmyqJNJm9
l/AAdgB2/4g/Crb7lVHCYcz1h7o0tKTNuyncaEIKn+ZnTFo6dAAAAY/SvN99AAAE
AwBHMEUCICNWHgPO3SKpOqdnGHEeBObCwlzqi0rNwrjtdOlwJsJDAiEAoDUdNRQE
+5ysMb8jgNlA5NyzHf3Pmk3kg4VZC/3l2CwwDQYJKoZIhvcNAQELBQADggEBAHdh
W+nuteOm1Do9zUGEqFsFeIhF/PZLzgrhBOCUcc6OqSjWjiA4u29Tj+yqwp4BMMQn
aeyj7BXEbHnr73XGBCKBBcnU3zFppx9VrUAYwDAPO/BC0v03/tmt7L7Okazdu/bd
DX5L44bL5fxVpO2JiJg2r9d6VIZhCcg9haEsdqF8UVQCt1nYI0h9fJpDXLr4O//w
PPuY9w3uEjI0C91i66aHfa2yzh7a/f7aWu18M3QOe2vDnwqmdv090Th9ZeG07lhC
7O8/0O4yrwhPQVHqbc5PTI7UDQqd1VWkq5YZUG17J/VFsSUzo8xdbGxzhC0KhVwl
jDqpT2wARGjVK6R7dXY=
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyNPJrKqUFW53AfYOjq5f
z6m7mKWyg8MK5f1w2A1FysIKWVbjIiE+nI+Ts9f6mWWzxqMx55lcA63HSbC3ySaK
KK4eZBw1J95vnfzQ3xnlVgSHwuw2rRU+BcgW9Q2vrbqHbWrVmlo/ZwtsNuBQ96ON
j4LgI9LpYoIsEbLUgRhciT6P28Z7Y7oWax/MZRuiTnd6SOT6Ji6gwXAySC9IA7Yl
w9rgryd3gakmkMq6fVOXM220w/ULX7Vg8/K8dGS9HKtzEQv1qzw6iZABzc1PKKN6
YudP5WCqtdtEf72bali9IZAJCqEUWoNL9mDJ+p5Ktoz+DzAVvFvtV/a0KJfQCAlf
AQIDAQAB
-----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 365299008348029757047097342102913925727870
 . . . . . . . . [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 2024-06-01 06:39:04 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-08-30 06:39:03 +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:12|false] UTF8String '*.is-a.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 (2160 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 25352097445318682649735405351081269527640896126553258717584459954001162225136947627713603444997483053276136248577323831914227986816950765304639320981845044256442659712779760428571989735864204540403911625136394019977606188334197888872690334774509224177997629069056218107475499462376410787871781049553016058988422039706958818062905864456336169179228841210547831973536777050411958915058812623079565016060784525924498538172963751484259135794864150052842436037188756285285528045704893955467113394976094716312104984375619240503252449823573433178281582988798242527179130406516616551943961597051692386407954978311639281524481
 . . . . . . . . . . . . . . . . . . . . [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)
							762cf7fb3548aaff42708468c6555822971b418a
 . . . . . . . . . . . . . . . . [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 (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.is-a.dev'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'is-a.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 (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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef0075003f174b4fd7224758941d651c84be0d12ed90377f1f856aebc1bf2885ecf8646e0000018fd2bcdf60000004030046304402200d4d7cf5475f75fb251c2c808d385c1319a3faf41ebb8877dde1b5f67f04822f022037bf426bedb603157c5c00d6e277b871ad5b33364e87879f9b2a893499bd97f000760076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018fd2bcdf7d0000040300473045022023561e03cedd22a93aa76718711e04e6c2c25cea8b4acdc2b8ed74e97026c243022100a0351d351404fb9cac31bf2380d940e4dcb31dfdcf9a4de48385590bfde5d82c
 . . . . [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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