www.mat.com.pt

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:42:b3:96:9d:47:93:03:3a:5c:29:67:ac:ad:3e:f7:69:e6 was issued on by Let's Encrypt.

With 2 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.mat.com.pt

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:42:b3:96:9d:47:93:03:3a:5c:29:67:ac:ad:3e:f7:69:e6
Serial Number (int): 284034207857845964204492044738543335467494
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 74:01:1c:5b:d1:28:e2:ed:fa:69:75:e2:84:96:2b:8f:61:8b:8c:1e
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 1c:2a:27:c2:a3:80:e4:5b:0e:0c:f8:b3:df:6a:cd:ee:03:fb:38:a2
Fingerprint (sha256): cc:e7:2b:73:60:fe:50:d8:57:d6:3d:ac:e2:80:63:e1:8c:1c:0b:73:48:d5:40:0d:f0:4e:e0:25:f5:e2:82:34

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 www.mat.com.pt

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.mat.com.pt

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

8 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

mat.com.pt
www.mat.com.pt

Other certificates including the domain name mat.com.pt

(limited to 100 certificates)
mat.com.pt
mat.com.pt
mat.com.pt
mat.com.pt
www.mat.com.pt
mat.com.pt

Certificate

The complete raw certificate details for www.mat.com.pt 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 284034207857845964204492044738543335467494
 . . . . . . . . [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 2016-12-15 15:36:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2017-03-15 15:36:00 +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.mat.com.pt'
 . . . . . . . . [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 845156114098449771366209846121348034415222284007090441296384182098491602348969355501086970184050481236768657830215914899483497119523847932097145637884700157644626352289559323320987070704794702501685622680274602143462339945928233045268587888197392647950540582822253376698226466562307959854900270752871450037145882656685433379747723485097439092047039899161442674135817203896917127016675632647833037941409525942113900255221779406495544291171741443780970949452291755778782829558483354144081075303039609246420842409097143915540006244151503504537289518414878034717440823401896569085113080452153158729940591688031056261436997683140296414343564373965694419200409182226951819142204061132742022292172407951375722359628699593434917173914367396291723872002809321819641610188194458095730619251711974129238203223665613262827757808013689394062080454754986737686059998040086240407987643633646472680031461111883971389203826967037518245653739932077628761964598023286866328306868208506534266323279640780547719246043069802755277932018612431974028362649033283271111837977903171591475117987622891380787395972473049867424484426121201826161631928697131925737983318326097392734485824341783120537395183602395736251249892248955049561809470557207393494719580501
 . . . . . . . . . . . . . . . . . . . . [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)
							74011c5bd128e2edfa6975e284962b8f618b8c1e
 . . . . . . . . . . . . . . . . [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 (100 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 (30 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mat.com.pt'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.mat.com.pt'
 . . . . . . . . . . . . . . . . [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 (246 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 1.3.6.1.5.5.7.2.2 (unotice)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:12|false] UTF8String 'This Certificate may only be relied upon by Relying Parties and only in accordance with the Certificate Policy found at https://letsencrypt.org/repository/'
 . . . . [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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