*.dev.internal.kooapp.com

Issued by R3

About this certificate

This digital certificate with serial number 04:5a:94:d8:ec:d7:6f:cb:3d:9f:ae:0c:01:82:5c:19:4d:f4 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=*.dev.internal.kooapp.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:5a:94:d8:ec:d7:6f:cb:3d:9f:ae:0c:01:82:5c:19:4d:f4
Serial Number (int): 379272408833140379311559371581122458242548
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 11:0d:06:2a:f2:7e:d1:7a:90:f0:c4:56:72:ce:51:a8:c4:d6:6a:7f
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 3e:eb:f1:70:6e:7d:19:dd:ab:1d:b5:94:3b:79:e5:5b:52:15:54:ff
Fingerprint (sha256): 04:c7:d8:6b:f5:96:08:19:5d:94:f0:d7:da:46:55:9d:0a:a6:57:62:7e:0f:2f:b1:64:09:43:5b:eb:f8:ff:70

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

Revocation information

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

Check the revocation status for certificate *.dev.internal.kooapp.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for *.dev.internal.kooapp.com

Public Key Algorithm

ECDSA

Key Size

256

Signature Algorithm

SHA256 with RSA

Key Usage

Digital Signature

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

*.dev.internal.kooapp.com

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Certificate

The complete raw certificate details for *.dev.internal.kooapp.com in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAESnvWgchKCXZkwUEe4msdxKj8JRko
JY4GXgEstMwGWXoMR3dBmhEw/u2jVY9X2MkqWt10FfEJ3sbCaVfy7nJR0w==
-----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 379272408833140379311559371581122458242548
 . . . . . . . . [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 2023-09-27 03:48:03 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-12-26 03:48:02 +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 '*.dev.internal.kooapp.com'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.10045.2.1 (ecPublicKey)
 . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.10045.3.1.7 (prime256v1)
 . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (520 bits)
				00044a7bd681c84a097664c1411ee26b1dc4a8fc251928258e065e012cb4cc06597a0c4777419a1130feeda3558f57d8c92a5add7415f109dec6c26957f2ee7251d3
 . . . . . . . . [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 (1 bits)
							0780
 . . . . . . . . . . . . . . . . [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)
							110d062af27ed17a90f0c45672ce51a8c4d66a7f
 . . . . . . . . . . . . . . . . [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 (29 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.dev.internal.kooapp.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 (247 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes)
							00f2007700b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb4990000018ad4f72edd0000040300483046022100ca4217dd4646a8caaf1e1e0ba0d850cc1da2d9ec815d7cc46bca108a2d0123d90221008f42f955a5d357f75b84a1a2655cefb30a07560a29e19eccdeee1dbdbf9f25990077007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb520000018ad4f72eee00000403004830460221008b43577888fcfdea601ad798b4a691b3ba60e33c8e6c8864343a16a083da2f1202210080c627779e55d57eb5d10c4d5422118a3908073b7919c41f799feebbea960374
 . . . . [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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