guuco.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:90:09:2e:99:b4:3f:bd:a7:c5:03:3e:68:9c:af:21:ff:93 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=guuco.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:90:09:2e:99:b4:3f:bd:a7:c5:03:3e:68:9c:af:21:ff:93
Serial Number (int): 310349723647002900969665941140161679196051
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 88:f8:54:c1:0a:02:d8:33:0b:e2:e6:99:f8:89:9a:7e:5b:fd:c0:66
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): ea:49:ee:fe:a5:52:61:ba:0e:7f:ee:6f:6d:8c:b7:5e:30:0e:89:bd
Fingerprint (sha256): 90:46:35:46:e9:fd:96:a6:18:f1:43:64:70:6c:4c:4a:8a:0c:94:6c:a9:be:15:79:92:d2:f1:91:3e:60:fe:d6

Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x3.letsencrypt.org

Check the revocation status for certificate guuco.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for guuco.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

guuco.com

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guuco.com
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guuco.com

Certificate

The complete raw certificate details for guuco.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 310349723647002900969665941140161679196051
 . . . . . . . . [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 'Let's Encrypt Authority X3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-12-16 22:26:02 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-15 22:26:02 +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 'guuco.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 871023756210182906739391434804889094845785115224310385763112220425198146904309688932531014662472645087017566035983589417975629694335948417212106842157300713699781694972133744368210471283330624309872352589802672041461344859121403934014444241152936797513655727804069419621779569150120858538761569413534347453849914629734691308052222790512559342740168808013275426481423097895610612128252633223443784351089594744372873512164480314964618806952977124021091398186720540142413214987661331031783971804234876780182115715360750268317285893920723682956918681525596353788162461717101702802008591016912318856998377956011190768325105770106780430199177407542283497026776752707929114787945574560861941085996127601279368502177210062137701266955228403734901564736433338436734061079564938035534212047453132998331054987243188135012325094928126063923212643222733682868433384991519046483462632419240297321734161436322556541635642603082516473422172390049247760882812200685908212447610540424345857294063494492223914962721285766715215544281327636270484705635816784103993045339411774688475906021210341893525228557126216777049299003654658239091902878120134477257123710160346344448280063312808777865714537006052918527629256977037168754499293445481019779843730181
 . . . . . . . . . . . . . . . . . . . . [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)
							88f854c10a02d8330be2e699f8899a7e5bfdc066
 . . . . . . . . . . . . . . . . [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 a84a6a63047dddbae6d139b7a64565eff3a8eca1
 . . . . . . . . . . . . . . . . [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 (99 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://ocsp.int-x3.letsencrypt.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://cert.int-x3.letsencrypt.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 (13 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'guuco.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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f0007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016f11086ec6000004030047304502207e42214a17716d092bd5a7ec0b3622c2926a1986b0177274eb41d9ff5669c965022100e8659273394beb18ddfa9d97c5347dbb46c84f782c3bb880b5ed3d9af075d9910076006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016f11086ee50000040300473045022100ead8b8310b4e1aa9a087aff739cf4722c618e1e016ed596450118306e7ae0f8f022036ea95856fc1b206eb465711eb45f1b39747de3b5cf74f26081f16273c10af80
 . . . . [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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