www.masterag.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:ba:fe:4e:89:a3:6d:cb:c5:f5:71:14:bf:e1:b8:7c:bb:76 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=www.masterag.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:ba:fe:4e:89:a3:6d:cb:c5:f5:71:14:bf:e1:b8:7c:bb:76
Serial Number (int): 324967409744297914895281609124647268039542
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: be:a5:56:a4:0e:38:3b:86:c9:b3:57:1a:71:f7:54:35:97:02:57:72
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): d4:9c:1c:03:dd:79:a8:1d:52:41:1c:12:68:1e:90:07:7d:1a:8d:e9
Fingerprint (sha256): 4e:97:14:4a:52:d1:7a:e6:c2:41:f4:02:87:41:d5:48:c9:9c:dd:34:02:34:ca:6e:07:5a:03:91:13:88:58:e5

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.masterag.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.masterag.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

www.masterag.com

Other certificates including the domain name masterag.com

(limited to 100 certificates)

Certificate

The complete raw certificate details for www.masterag.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 324967409744297914895281609124647268039542
 . . . . . . . . [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 2019-10-12 00:35:07 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-10 00:35:07 +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.masterag.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 807724330504731450740342011283641196885478690639418864421710111383005863340976286156515445856460948631968643669313633878799535408302875274868291373647169574897386315541185270770307148240748647992051763931951868793051741049690908116415064309198104036581290338758066662054686869150789417811276566521927811375871001369648660404081044934119915778599748947323614196028783516948033547351497763334532222334545211700912653131804079332758007304016239402951493416697062791713916207472411835748213297880883183924552057331800548844935460676856754307046451482194403272387912491432524589334958342575342268274938428204976586640702536568683026590199551401459123237370165095368783750925409075837508505184006373975983711960626695352288082197965128791095939735638717448431780715322443974204734854477703039220392640873732614405301672948945361270243058524286806575573840890044435924727358951852616231668200087252354173262745888750055663997062291879434748270680244920430471611750034985443830040084742997441790513758200939060082165424985717588761567535718384246018269381508527202889430092949387024849271985244548818101745492936411131615321561150052986577353349306359090196416874684215243854683502265380653844820338896882004497464641662444629798606321618661
 . . . . . . . . . . . . . . . . . . . . [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)
							bea556a40e383b86c9b3571a71f7543597025772
 . . . . . . . . . . . . . . . . [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 (20 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.masterag.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)
							00f1007700f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016dbd9ae3bd0000040300483046022100cc24927be64e919777c8e32e6c60a8080465496e4a9ddad550547c3d50dc1c0c022100af08ceaed1d6d110f3d2454d646943c424c7636c08beeeda1dac8b756738fd3b007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016dbd9ae395000004030047304502205342432c59de317cccf7710a763f5f49dfb15b001404b45afc4bc47a8661e12a022100873dac07e38c7665abb5e5803a8d01f4cf27d861473e42da6962df54547ae69f
 . . . . [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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