kursus-web.com

Issued by R3

About this certificate

This digital certificate with serial number 04:cf:3d:3e:0d:2c:f4:7e:6d:29:5c:94:c8:58:c5:58:41:f7 was issued on by Let's Encrypt.

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=kursus-web.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate will expire on

Certificate Details

Serial Number (hex): 04:cf:3d:3e:0d:2c:f4:7e:6d:29:5c:94:c8:58:c5:58:41:f7
Serial Number (int): 418968998777056388731624203192476297085431
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: da:aa:cc:e2:a7:8f:f8:41:40:af:a1:59:9f:1c:6e:5d:21:ee:45:20
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): cd:3f:67:78:e9:3e:b0:17:a5:9a:33:09:80:ae:2f:3e:b0:63:22:4a
Fingerprint (sha256): 97:ee:06:a6:15:2c:ce:3f:fc:e7:9f:d2:a1:de:1a:40:c1:b1:e8:e6:11:9b:09:36:33:0c:7e:0e:d5:6b:07:08

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

Revocation information

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

Check the revocation status for certificate kursus-web.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for kursus-web.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

kursus-web.com

Other certificates including the domain name kursus-web.com

(limited to 100 certificates)
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kursus-web.com
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kursus-web.com
kursus-web.com
kursus-web.com
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kursus-web.com
kursus-web.com
wetter.app.5ls.de
saikrishna.info
kursus-web.com
flvw.app
nb.kursus-web.com
kursus-web.com

Certificate

The complete raw certificate details for kursus-web.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 418968998777056388731624203192476297085431
 . . . . . . . . [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 2024-04-26 11:13:47 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-07-25 11:13:46 +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 'kursus-web.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 656226161938727873220998081966670941686832314140655975132970080946545411584036468213877387051300691837025378063411045496069594465905126117970630287053856292665085285765881598394333799783044789588413227661082508093846429010239712409777940345591874876768514681863453294626125860302287454284848160514889932179481403814914093929475026212696255273832639739290034663107058019607581937971416914778501300658289132912895760606790197551075377441421516815971179035122295960039213126553384091621778056841767152823769993779627422328803407835875509472201458630065869331703354653402575208507793775545206334924042913584001805726393602652163276599832901184000791649283758356215476818849745470713621821429801258751651551796731782660458704590730740961148016180038992868341099952930698693589294654838633983885549972606436096325366785341807172474269553058771570313940455296120598023139159230730240467584169195478004251991404910877667403659372580738850245191212683102847029826378976353291793046405994970523150113030618801201444224976264159092998224601277523306651661030434220267741837973016384819164489342692415277806995005451599872949726077920322775702074370334430052919260343934941945018489043637369159540551425387678116601190916211612697064683350460567
 . . . . . . . . . . . . . . . . . . . . [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)
							daaacce2a78ff84140afa1599f1c6e5d21ee4520
 . . . . . . . . . . . . . . . . [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 (18 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'kursus-web.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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f100770076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018f1a5374770000040300483046022100cef4e3eca0e959650838aef75f071d15e2b80d39586db9c90e5367185d37a1de022100a21bc32be2ac195e520bac0db5e86c735703d0a55fb9f8d7e3e7b0e10ed953110076001998107109f0d6522e3080d29e3f64bb836e28ccf90f528eeedfce4a3f16b4ca0000018f1a5375dd000004030047304502202f7901e35c9aa6a99cffb6fbe29ddc6c91ab23d7fb4b7f3cec0f3b7bec31b04b022100cfad298681a63e3aa6e8a89d134402ed5f65114b0d57d3a9ff3b82f0098fb892
 . . . . [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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