www.thinkbook.com

Issued by R3

About this certificate

This digital certificate with serial number 03:f7:3e:d2:81:2c:3a:49:d4:b0:65:42:ec:36:77:6b:52:45 was issued on by Let's Encrypt.

With 8 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:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

Certificate Subject

CN=www.thinkbook.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:f7:3e:d2:81:2c:3a:49:d4:b0:65:42:ec:36:77:6b:52:45
Serial Number (int): 345470107562766414921490457389841028698693
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 2d:48:34:58:32:24:c8:84:42:8c:80:b0:33:f4:f8:9e:6d:98:21:14
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): ba:bf:95:42:26:ec:47:91:a3:fe:1a:a0:4e:07:28:e4:5d:d0:ea:af
Fingerprint (sha256): 03:c7:50:b5:bd:5c:37:21:4e:c6:b8:5f:5c:b9:c4:25:cf:0c:77:3a:d4:ce:ef:60:20:28:4c:7e:73:a9:02:83

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

Revocation information

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

Check the revocation status for certificate www.thinkbook.com

8

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.thinkbook.com

Public Key Algorithm

RSA

Key Size

2048

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

dash.lenovo.com
ievents-us-hls.lenovo.com
mbgtest8.lenovo.com.cn
thinkbook.com
uki.lenovomm.com
uss-us.lenovomm.com
www.account.lenovo.com
www.thinkbook.com

Other certificates including the domain name thinkbook.com

(limited to 100 certificates)

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1IBCjkdS8N08vu7efhoa
BwBw/cPOTd1l5TYGGilGfLC1cvPRt9Xaq3sOmPIi8asT5m7mXZTB1t24peALEhtc
xIbC1OTBeZjqfBr1MqZ/i6JZ2NIQmLIMr2S8n0mqIW2nQjTq3ZGrp5OcD7+UhRAW
2g3M80Bae8tSeEj6KPeS2LPXHXnDHeUOgQUQ5JpdeEO0ap+BLkX7upmjyO/7kirc
OvzW07ds0PzPr6/Wc6U17fgbvtVuP2J58I4GUx3RIXXM5tvH8/yJjBFJzdOP7qxK
6sq08ITsDRUnQ2HqMLWGFZnyozFmz+3423ZCGqlg5BK0Y6WgN/2T7HEE2uuIIs+Q
YwIDAQAB
-----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 345470107562766414921490457389841028698693
 . . . . . . . . [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 2023-02-27 06:02:36 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-05-28 06:02:35 +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 'www.thinkbook.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 (2160 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 26825768007929133952211717247056378059803862271564693661453993531540878473680666767503128722177242979816828976088725332818899686192575449842993762473491808886290461780874987216768165441175476015856937772280486411705729649065823697601539878832138486149019974183800014800698700045427474314276795706872832209701274032500989092397188989236288907936188145980943023305874798580387028471310010089639426951506181691560249735081096549437436574095036922770472219398061514982507887870611978236632961157978742785859076656640075380803774958239899123761456981738428319788328477407571830296008102277603510430423202530178330038079587
 . . . . . . . . . . . . . . . . . . . . [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)
							2d4834583224c884428c80b033f4f89e6d982114
 . . . . . . . . . . . . . . . . [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 (168 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'dash.lenovo.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'ievents-us-hls.lenovo.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mbgtest8.lenovo.com.cn'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'thinkbook.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'uki.lenovomm.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'uss-us.lenovomm.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.account.lenovo.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.thinkbook.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 (69 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 1.3.6.1.4.1.44947.1.1.1
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.1 (cps)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:22|false] IA5String 'http://cps.letsencrypt.org'
 . . . . . . . . . . . . . . . . [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)
							00ef0075007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb520000018691ae2bf90000040300463044022048e48971b49c8e2e0b2e455d28fc2c678dea4e452d4dfd9fb827857cec18481e0220390cdc70defe21d320f61b479517ceb7539cdecfa810fb68e1c58c9d7941b20e007600adf7befa7cff10c88b9d3d9c1e3e186ab467295dcfb10c24ca858634ebdc828a0000018691ae2c160000040300473045022100e67d21bdbba44879c99f0c139b932caa0ae85bb60e540cefab75e65819836f0002205538f7d07c04f52a0804a9dfe4e2e34fd79e56d6ee73b0cd5bef781b4f9a8911
 . . . . [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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