sikur.com

Issued by R3

About this certificate

This digital certificate with serial number 03:4e:bc:25:a5:75:b9:43:f1:a1:0a:bc:7d:16:90:e0:07:9d was issued on by Let's Encrypt.

With 2 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:
  • 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=sikur.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:4e:bc:25:a5:75:b9:43:f1:a1:0a:bc:7d:16:90:e0:07:9d
Serial Number (int): 288128972749229886545345521508806295553949
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 27:00:9c:59:4c:60:58:eb:da:ec:a9:a1:8e:3b:40:05:89:cc:f6:78
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 89:93:82:c0:1a:03:19:b0:6a:a6:4e:2b:2d:74:4c:c2:73:58:9d:65
Fingerprint (sha256): 1a:4b:07:14:77:b1:65:ab:f1:74:63:52:3f:2e:55:67:b8:94:b7:e6:92:20:6c:a6:68:d4:0f:8d:85:ab:22:27

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

Revocation information

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

Check the revocation status for certificate sikur.com

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for sikur.com

Public Key Algorithm

RSA

Key Size

4096

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

sikur.com
www.sikur.com

Other certificates including the domain name sikur.com

(limited to 100 certificates)

Certificate

The complete raw certificate details for sikur.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 288128972749229886545345521508806295553949
 . . . . . . . . [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 2024-03-11 07:59:08 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-06-09 07:59:07 +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 'sikur.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 (4208 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 734226437957797534756378678104422673539737625323444415889804069703411989140181354700563132761755542682580688238515817229141307099603637685753837303548955006162859845037925142394806573121955455164885851006045076667904077207673079652377948153347464843783236355135171126162741772781282672682727775439333100008026375040536369640244703174781573036979268917782982669749641808582362804781373190518356381703434757229208627738544610575552569301735589878830878310692255531354724341906377868064381920394930646340852891611156884976910145037389667122120034014789827059770499698003589480852504142889255983728363507749931937794206206207764653143570493346379943088050346722598597333853292583131092484290385822016915163461131946310954146797996581016645383106811262517439608840297933451811215126821973812364690060599846055755668284052867152036912798569200098917644642576456402898019958409903246833998377644066272429166681815126653436048233167742364675790583261632879359558729609192232286958890149481381418443975230111097361683506296191211779241728231407167202710434239682941353932905935211802306650198501128229051668491531834533437308362480688548048106266269205708520637578341242424127276209965187820684455673641872879366877526605514124738440346564463
 . . . . . . . . . . . . . . . . . . . . [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)
							27009c594c6058ebdaeca9a18e3b400589ccf678
 . . . . . . . . . . . . . . . . [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 'sikur.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.sikur.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)
							00ef00760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018e2cbcb755000004030047304502202e4d1fac54f4b87cbe7040b41b90076134a45431857f4bfe348df87ff142786b0221008f4024c7af6165f65c56ae7894c72cc1048189b59d77eb1385e42f2c22ef05990075003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018e2cbcb94a000004030046304402205c874cbdc19e870b8e5905bcea49259037bacf274b9092c450456576908f257c02204c90a0980ac7fe91f966e600565570a5424d288a72df3729f3bcdc8fae1f0eef
 . . . . [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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