guuco.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:19:bf:00:4f:58:5c:a4:5f:8b:f2:8a:6f:24:87:49:da:a7 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): 03:19:bf:00:4f:58:5c:a4:5f:8b:f2:8a:6f:24:87:49:da:a7
Serial Number (int): 270097801124810228783862286789846355270311
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 6c:56:a8:2b:f1:6d:16:92:de:e2:f2:25:4c:1f:70:5b:47:d1:c7:7e
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): ca:52:15:bd:68:d5:81:b0:5d:da:37:5e:2e:51:4c:48:a2:4a:3c:b2
Fingerprint (sha256): bb:07:e1:70:29:47:23:37:db:9f:7d:0f:49:0e:48:1a:a2:22:68:4d:e8:a9:ef:50:7a:1c:c1:78:0e:7b:9d:09

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

Other certificates including the domain name guuco.com

(limited to 100 certificates)

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 270097801124810228783862286789846355270311
 . . . . . . . . [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 2019-10-13 06:33:38 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-11 06:33:38 +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 737689207225152551020396020030974323357517036949983516235685198197804536235219654415435787363410191734427550252521137687550692661789132164212675128845057144371813177631388577621726957658464003302580000987191999520952894133791754409694466107254590216510514754170284398081095002225745223209181270248403480884101800449513701461672110329584176225602478498800873283045480431628506308654612186220146664961510525006400309342130181278028834788117421199392917987382830984159050212375092201943627491682558316161082272974390865579598758540156315251701353955138310924393524397456880204095608232399577848427729326655224158671846270473458617993910057715282885631176624104672864676224402152746167375254812045740119319288998858978253258571649710958519444938137835466476868220862347467255608964596566556700642095702732983811287909586711233201780987519967503780125019609189011910921224678132413625966818256792744763445665776607854874681273332234947239406832297495576590507131518165116628019073633156522590841252781933694134596692245830063038111718761088030734821584848044591412228123543426635790848260693607002108505679792207578536580196792468523146340423760142502919216466865858909090456499789233608907369690221960415035183329437009639035623293470173
 . . . . . . . . . . . . . . . . . . . . [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)
							6c56a82bf16d1692dee2f2254c1f705b47d1c77e
 . . . . . . . . . . . . . . . . [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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f1007700b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016dc4097c250000040300483046022100f5b2b3271895c70c823b4d5940159eef32c998d2177f8bd13b799412f5a97c0e022100c7836c6f1b3151d81e4637951ef68d92e388d8031851640f089b63ccf2d40cf20076005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016dc4097e2300000403004730450221009eb15834714842a47ec1434d804753ec61526ab8914a8ae24f24605176a54c84022077f0ac31f73cc61f98b62d0004e827c8fa563c6bdb849a97e4765159d4a4c1ab
 . . . . [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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