www.mastas.in

Issued by R3

About this certificate

This digital certificate with serial number 03:33:60:2f:80:8e:46:65:6f:98:15:0a:d7:19:0d:72:c3:4e 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.mastas.in

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:33:60:2f:80:8e:46:65:6f:98:15:0a:d7:19:0d:72:c3:4e
Serial Number (int): 278819111041216919560823836292082971099982
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 67:67:6c:c2:e7:a6:09:25:12:f1:54:34:d0:48:8b:42:25:61:17:f0
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): da:b0:cc:79:c5:fd:1b:7f:2b:6f:04:6b:ab:1d:04:26:f0:75:41:22
Fingerprint (sha256): c5:7d:99:1c:df:47:0f:a5:92:85:8b:85:85:4c:80:1b:17:10:48:e2:80:6d:ab:b9:1a:11:a1:65:d5:27:72:4f

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

Revocation information

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

Check the revocation status for certificate www.mastas.in

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.mastas.in

Public Key Algorithm

RSA

Key Size

2048

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

mastas.in
www.mastas.in

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mastas.in

Certificate

The complete raw certificate details for www.mastas.in in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1k3rpFMeA4Drmq02nQ1u
ANAMZHa5GvdLoi8aDVmfl2FAD4dDpaufoMho/Xlv91xo4XQgjp0V95abzU1tWnIN
/npcaZMFEaRpOTi7bhKDn8GblkcbJnBbl/lHsPNIeCAM2AZbnI9WqpAfBa3p4Sxf
OVdAarDb+igG2UwVAdYzT/dgqiM4FAskq1dsl9qAtnoR2NS0P3tF49Q7El87SkZC
9NV4p0NJ9Hyiknfs4Itk9URuBsZfBT5ijZ8gc9C5jjhJFXz2G+2blQqsMpJuUpLR
VL14Tf2DQPb6uwRxCwEEwj5Q5ziAe3JcIgGG4LDWol2cJdaqecC9IlYdtdXH++Qv
pwIDAQAB
-----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 278819111041216919560823836292082971099982
 . . . . . . . . [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 2023-07-11 01:17:04 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-10-09 01:17:03 +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.mastas.in'
 . . . . . . . . [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 (2160 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 27053421281606725665405182931086843580279436937428573181473569132384153277486036938014961725956834584079690789619305125808043167430182693411235156000047393432619035421690740219034644300712769276644752829557962739370943568677435763048418524130983714375693389957504830816116469193512109834913323889023930057660145953953852849540036790274600300447445612508025503973730129757596687269231987986967663443303181919913863908843548582094297198038349019936918356776404474942744876602696095835348651793723475120528553482841020501692733850923152843809866798049270831256160540169150903964381502829944215980575441256112526612246439
 . . . . . . . . . . . . . . . . . . . . [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)
							67676cc2e7a6092512f15434d0488b42256117f0
 . . . . . . . . . . . . . . . . [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 (28 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mastas.in'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.mastas.in'
 . . . . . . . . . . . . . . . . [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)
							00f0007600b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb4990000018942bceb050000040300473045022100f8965a3154401932110d7381d54d7ee953a00e4cf196f97698b7e1ca5d433876022075d248ceb1af86464b179e35d49441b10917a7d8471a141545ede3fb8368d08b007600e83ed0da3ef5063532e75728bc896bc903d3cbd1116beceb69e1777d6d06bd6e0000018942bceb01000004030047304502210093b8726f01555f6b28907580407ad34d83a2003c9e3f6b73ce98e3ffb3d2786402206021a62289c83c94953c58dbdabea2a5c3d68aca0674dd00eba6c1a477d82792
 . . . . [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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