DV SSL/TLS Certificate for www.gtwiekens.nl

Certificate is witin its validity period

Issued by Let's Encrypt (R11)

About the www.gtwiekens.nl DV SSL/TLS Certificate

This certificate with serial number 05:3f:c5:9a:ff:63:83:be:28:2e:0f:9c:c5:a5:d6:b2:18:ee for www.gtwiekens.nl was issued on by Let's Encrypt.

With 2 subject alternative names, this certificate can be used to secure multiple FQDNs. This DV SSL/TLS Certificate is currently within its validity period but we haven't checked the revocation status of this certificate, you can do this simply on revocationcheck.com. We have found some issues with the compliance of this certificate, they are be shown below. We hope this DV SSL/TLS Certificate review for www.gtwiekens.nl provides you with the detailed information you were looking for.


We have identified some issues with this certificate:
  • 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)

Let's Encrypt

Organization: Let's Encrypt
Country: US

This X.509 certificate will expire on

Certificate Details

Serial Number (hex): 05:3f:c5:9a:ff:63:83:be:28:2e:0f:9c:c5:a5:d6:b2:18:ee
Serial Number (int): 457261881483605008663753726513530151246062
Serial Number Length: 139 bits, 18 octets

Subject Key Identifier: 21:c7:0e:26:5c:73:f1:89:4d:3c:a3:29:ae:8f:95:2c:78:59:8d:c0
Authority Key Identifier: c5:cf:46:a4:ea:f4:c3:c0:7a:6c:95:c4:2d:b0:5e:92:2f:26:e3:b9

Fingerprint (SHA-1): e1:b7:2d:3c:63:6e:ee:72:67:1d:06:8f:86:1d:7b:ee:be:5a:de:e7
Fingerprint (SHA-256): 52:73:9b:64:70:1c:e7:00:8b:88:8c:15:29:74:ff:3a:6b:97:ee:aa:40:77:75:04:55:17:84:8f:ef:5c:7b:e3

Issuing Certificate URL: http://r11.i.lencr.org/

Revocation Information

CRL Distribution Point: http://r11.c.lencr.org/111.crl

Check the revocation status for certificate www.gtwiekens.nl
2
DNS Names
0
Email Addresses
0
IP Addresses

Advanced Certificate Properties

Technical details of the X.509 certificate for www.gtwiekens.nl

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
10
CA Certificate
This is not a CA certificate

Subject Alternative Names

X.509 Certificate

The complete raw X.509 certificate details for www.gtwiekens.nl 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 457261881483605008663753726513530151246062
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11
 . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'R11'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-05-12 00:52:11 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-08-10 00:52:10 +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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'www.gtwiekens.nl'
 . . . . . . . . [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
 . . . . . . . . . . . . . . . . [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 664543325900492957052373782551108796284686639966228176701906784174461318940301955272438420554052938302880607440488661631698200369460598424653800395857767975846229902131644411500578685110552536391594290957759813593297127773063080377365714780435331773667081963883118898064964232532619259319884123405232774490917383171864333479634578881901953105087995745587501772862485328553692566928533807580328786659237256746330647141853898638308356112791882939507957928620740237975188364045099031172064662922686971156523498297743528914465586853616426303515304569539599572392057840104791280104850624321825259786962458475978301731274087296875169764833461592904409712118217481628610541350056935621881171183047365514904910611814143244714278564729471546777145920695044859490877620782600028598218965940007851008785815179506858580247160584881648622869331468817990919295134558788694161191207681005057274151450757166868280378975655596757796941092331159158903192254383622865655348596279581187829567986208892380344263718007004231703901833690479721960635571612696734034380998672960336780575928413937445932020820551597941547149214235805164575608827582689844703211631557689602816781676772096277612016772141946626176239866791646432697125456603232536335947601987491
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.2
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.19
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes)
							21c70e265c73f1894d3ca329ae8f952c78598dc0
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.35
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName c5cf46a4eaf4c3c07a6c95c42db05e922f26e3b9
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.1.1
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (39 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://r11.i.lencr.org/'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.17
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (34 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'gtwiekens.nl'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.gtwiekens.nl'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.32
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.31
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (40 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://r11.c.lencr.org/111.crl'
 . . . . . . . . . . . . . . . . [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)
							00f2007700ed3c4bd6e806c2a4a20057dbcb24e23801df512fedc486c5700f20ddb73e3fe000000196c22fe9360000040300483046022100d87b2dde843d210cf4e6225ae689b910ab89b9255e66ab464f5e026388900151022100834567cb5bd47969bddb308d53985f278fe27bae4ceae77f9d55cd31b231902f0077001a04ff49d0541d40aff6a0c3bff1d8c4672f4eecee234068986b17402edc897d00000196c22fea8f0000040300483046022100b78ebd67f81e1c4be3f1a96ec8aeeecba8bbaf62c3dcd57d2f5d00acdce0c130022100c2b2390ba7824838188dd398fbe51ae81bc596f5eacce7b4d1e6c11bdc9d557b
 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11
 . . . . . . . . [c:0|t:5|false] NULL []
 . . . . [c:0|t:3|false] BIT STRING (2048 bits)
		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