kru.com

Issued by R3

About this certificate

This digital certificate with serial number 04:92:16:77:2f:63:1f:16:cd:22:c5:dd:27:52:60:f6:f4:32 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=kru.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:92:16:77:2f:63:1f:16:cd:22:c5:dd:27:52:60:f6:f4:32
Serial Number (int): 398160231157857897106779718027825611469874
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: ec:01:2a:6c:8d:7c:ed:50:5f:e7:2e:14:6e:4a:87:75:35:13:be:f4
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): ea:03:3e:2e:cf:df:a6:97:45:48:ae:4a:90:1f:49:e1:93:18:8a:b5
Fingerprint (sha256): 28:48:c2:01:f3:94:de:db:6a:07:b3:fb:4d:93:be:05:89:58:22:05:84:0e:f9:7d:84:26:9e:ed:16:8c:19:76

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

Revocation information

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

Check the revocation status for certificate kru.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for kru.com

Public Key Algorithm

RSA

Key Size

3072

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

kru.com

Other certificates including the domain name kru.com

(limited to 100 certificates)
secure.kru.com
support.kru.com
support.kru.com
support.kru.com
support.kru.com
secure.kru.com
billadmin.kru.com
secure.kru.com
billadmin.kru.com
secure.kru.com
secure.kru.com
secure.kru.com
kru.com
support.kru.com
support.kru.com
support.kru.com
secure.kru.com
secure.kru.com
kru.com
support.kru.com
testers.kru.com
kru.com
secure.kru.com
testers.kru.com
secure.kru.com
support.kru.com
secure.kru.com
kru.com
secure.kru.com
support.kru.com
secure.kru.com
support.kru.com
secure.kru.com
secure.kru.com
kru.com
support.kru.com
billadmin.kru.com
support.kru.com
kru.com
support.kru.com
billadmin.kru.com
support.kru.com
support.kru.com
secure.kru.com
billadmin.kru.com
support.kru.com
secure.kru.com
secure.kru.com
support.kru.com
secure.kru.com
support.kru.com
support.kru.com
secure.kru.com
support.kru.com
billadmin.kru.com
support.kru.com
support.kru.com
secure.kru.com
support.kru.com
secure.kru.com
secure.kru.com
support.kru.com
support.kru.com
support.kru.com
support.kru.com
support.kru.com
secure.kru.com
secure.kru.com

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----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-----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 398160231157857897106779718027825611469874
 . . . . . . . . [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 2023-08-27 17:09:52 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-11-25 17:09:51 +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 'kru.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 (3184 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 4235005053190830223046083535557076947830350439908479362750063595988542440082557618336295506319401534604999003975810660027975803059395723061649639544794214907805148853551888297236386916185471776572029037575504287073674346375003654042837535787571237001585301219379028416773317455489296250059997158212486464816434463004592065669433852588077265732107443047592340059150388420510232521678737712658584154663547916993408681955431387725231064297442021730356629316407656143364822148692039379733582684192606234268315521876616008212365913606000797665552359736716287776632537241936327042550576510021889164475221732696019928155150444297125986934724237397626887103196535336934144468871091175767677084095001512971992979411523830944902601750351346281531574718407541151446860383953642522421624142823804445226482672894401886076351392965182711579382686916421986781459432427040794534405308147894102143718389004428771779747327512092996384647858023
 . . . . . . . . . . . . . . . . . . . . [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)
							ec012a6c8d7ced505fe72e146e4a87753513bef4
 . . . . . . . . . . . . . . . . [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 (11 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'kru.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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef0075007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb520000018a38301fb9000004030046304402201e5793255111b8e665d3ae1a670d4f28e95a80f307dfcf0bac327a9a9828c42e02203912a7f22e44df1ac1e0619c922e42a73b2aaa8b38fe266aedce401f462600bb007600b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb4990000018a38301fa90000040300473045022100ca0af051e0f6e426e0e55f3aaa3847f1f79288e9c6b02bc494c5a1d5482dab4e0220136bde1302e3c4c0a1713728d42e929c010775bc7a6f6b08597afe21e33b035e
 . . . . [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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