merate.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:fb:b1:1f:a2:61:88:78:b7:ac:aa:3b:85:32:4f:26:b0:e6 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=merate.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:fb:b1:1f:a2:61:88:78:b7:ac:aa:3b:85:32:4f:26:b0:e6
Serial Number (int): 346983169502370562413605662269187954225382
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 79:43:b3:57:31:55:d9:0f:b4:bf:31:ed:51:b3:3f:f7:73:2f:28:f7
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 2c:d4:66:b3:a3:02:13:b4:46:a3:4b:21:bf:65:c5:99:d9:af:79:10
Fingerprint (sha256): e9:17:ac:a9:be:8a:8e:b6:c6:16:73:bd:fc:48:b6:46:19:a4:ef:4a:1b:8b:ab:aa:a6:36:ed:06:9d:30:8d:07

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 merate.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for merate.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

merate.com

Other certificates including the domain name merate.com

(limited to 100 certificates)
merate.com
www.merate.com
merate.com
merate.com
mosquitorepellent.organic
www.oyoon.com
parsimonia.com
emozionata.com
qwestnet.com
merate.com
merate.com
iekeliene.org
merate.com
www.merate.com
www.merate.com
www.merate.com
www.parsimonia.com
merate.com
mosquitorepellent.organic
www.merate.com

Certificate

The complete raw certificate details for merate.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 346983169502370562413605662269187954225382
 . . . . . . . . [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 2019-05-25 13:43:49 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-08-23 13:43:49 +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 'merate.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 970488229948993724840882232397878425513703706077111528630712758539975794250633578924366024078864684093015450428066868496581056198936603138137848970368658869271390209137282422294651189852002815189464854008943082296439223027738449860858999353554641581971329182343499403927191910626344917466540538903152010441788790399599763897071697215337543604748415043543306047138872747423530551258508943149091555221282019331308575976226688961981837410261568486203517214791643179727569481036212791229881031092797177090511295921330638924612883817597547478361905972434626029228322773481332873776503764512389125425229173781194195567674209891295553396626589338097770341848283143392500263570790928821661236069618765297088115043560452684107312534286080867321286097132724023748897225993955359991141885769023642240924691990739624522020849743680070987962589543019391197445842518546884685770501794713007565431612006550257180616682848853848278682442784022745492329721746846376779849781137379225741518507552735798068986978368413832739252754529648707049334586424256817678499243240302909942794251303785127843018123753171729328890014707994985592432027257166744614117507100746654464262587252821358099480822628894227988038711922827548981787394731837592462133884717849
 . . . . . . . . . . . . . . . . . . . . [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)
							7943b3573155d90fb4bf31ed51b33ff7732f28f7
 . . . . . . . . . . . . . . . . [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 (14 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'merate.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)
							00ef007500747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc560000016aef72a5440000040300463044022009a30f2ef727141e7bf3ed562db9d41606b567c0ce134304d7800fb30cc4567c02204468319053aa25ca7afb656944d8df34758080e0c79ef69b0441ae17f158db4900760063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d0000016aef72a5620000040300473045022100d55893593af5f44f3dc0c7a150cc49b682c3788bcba1b7b61edead1fd84798de0220620661b735627fc98d91edd5f99d40cd0972ce4da5742826bbca2bdbeff5891b
 . . . . [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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