zatero.com

Issued by R3

About this certificate

This digital certificate with serial number 04:fd:30:6f:3d:9e:55:b2:53:c3:49:df:c9:91:24:41:f0:3e 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:
  • 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=zatero.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:fd:30:6f:3d:9e:55:b2:53:c3:49:df:c9:91:24:41:f0:3e
Serial Number (int): 434604963096558948480690746617214688948286
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 32:84:03:8b:5e:f7:b8:72:26:26:9a:72:39:d9:c1:50:fa:41:ce:f1
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 1f:88:37:68:17:52:c6:5a:d1:2a:bb:e3:f5:d6:80:a8:3b:6b:3b:61
Fingerprint (sha256): 3a:81:4e:a6:22:c7:ef:7c:0e:8c:29:19:5c:33:ad:d0:90:c2:1d:16:9e:81:72:48:10:6a:d8:9e:9a:28:2b:ba

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

Revocation information

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

Check the revocation status for certificate zatero.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for zatero.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

zatero.com

Other certificates including the domain name zatero.com

(limited to 100 certificates)
www.graziano.co
zatero.com
www.zatero.com
www.barlassina.com
www.zatero.com
zatero.com
zatero.com
www.zatero.com
zatero.com
dogtagchains.com

Certificate

The complete raw certificate details for zatero.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 434604963096558948480690746617214688948286
 . . . . . . . . [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 2023-12-11 18:06:44 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-03-10 18:06:43 +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 'zatero.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 841399087539644260787181029536838902534007648319784406412600773849499122639434667240013331459909371552605225926190277147387299037998693396890332241100566550462735699718332708786810561754701920679586800191909105905337308801686499239447068797228111451287267318443296197580703138993815248517074970876629684234782529623523608198874873731858598747874041798795735733746139406400521597410791602950921966097108547604075286190843042049835020408234181293678204659390196700559573817317474419503400802035117201524832149917835148218175088663057225116548939745038545937700422953249190813432853822654616545197113032364447046529240042861774726472434308624496040219130947916803462372574395178785474201225525399086382522253178545122306742347300757309001417987825737921527570961897078276398960252021627854210502266214524163315455371845966782888673187126276565474942631530882612374189760302762038961438017072664246770240615758132377217994634159438925432215334009910078192745699864404516040041787041697315387414993171890207065636329995217950873698568091484808573449623029794812713806618889447289399168621346707355149108138911571871940190256092953486319537407692329529356965853410557674621416925034516405786503854118396762284880822885216918941218535479959
 . . . . . . . . . . . . . . . . . . . . [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)
							3284038b5ef7b87226269a7239d9c150fa41cef1
 . . . . . . . . . . . . . . . . [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 (14 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'zatero.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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f000770048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018c5a4646b60000040300483046022100ca19de679642b5fd5104a63c704fe3c076e02fbabfbf1305c62fb2c995eb9bad02210097f4a0f9008f422d6eec10927f23945b187beed80cec013205c0609294bcbc9700750029d03a1bb674aa711cd3035b6557c14f8aa78b4fe8389449eca453f944bd24680000018c5a464779000004030046304402205110546b867bc3036d359674feb6ed88390c54790bb054e7e3bcb2603e66c0c1022024497a862123a032aa5b7ee58f16ea2969ea6efdacf41a134af71ae87d48fa42
 . . . . [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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