www.singapore-plumber.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:57:c9:f2:3b:52:d9:b5:60:fe:86:fd:e7:a9:e1:44:fc:e7 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.singapore-plumber.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:57:c9:f2:3b:52:d9:b5:60:fe:86:fd:e7:a9:e1:44:fc:e7
Serial Number (int): 378322142215381419888914153814970004208871
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 45:e5:53:f9:1e:bc:2f:de:75:88:b8:18:e8:6a:f5:45:bb:8d:11:34
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 09:31:7f:03:20:79:c2:72:0f:34:0d:85:df:20:cd:d2:14:fc:1e:66
Fingerprint (sha256): ef:99:2a:71:63:12:27:e3:50:bf:88:17:7a:5a:cd:ca:93:38:7e:36:cc:f1:dd:63:59:1b:3e:72:7a:18:96:df

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.singapore-plumber.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.singapore-plumber.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.singapore-plumber.com

Other certificates including the domain name singapore-plumber.com

(limited to 100 certificates)

Certificate

The complete raw certificate details for www.singapore-plumber.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 378322142215381419888914153814970004208871
 . . . . . . . . [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 2020-03-09 08:40:39 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-06-07 08:40:39 +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.singapore-plumber.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 692913961210507287142736285154922388479284337883011087231372752609767562000521403763070913089808440443257638070800552362128148900941110280105728335977889459112614232164363086963219790065936359517399698082187311823874093988957958471362413357284730861133152652472462382937930010315761745177746552013527771439269510023351090992431609354850719700448903462085230842975717910005947069948319908278625426173617574148239797660454367196261971707911911826329207311698629984065968942264696668481769947414104734872448590460408867761069428177007981239677388849602963094976030283843599533192103067476326351088910078844985276799457830164198969025657629757876520815468373551431252464014704464176981654090926654380235081789822367971124402965498971297034533161596007210709953418499097113728223287752049933573081264671199878787077391017125575149292766208394739966036324130037408153866977028661509976322290441095513608632218613414729835489567709102360099764171372990073154048500331605040087455670561344113545050135268440586776913812672069644722421203990291254368902495159339597117263473719338596146363335938486426038761399661344752882995117381699858738239487971454199910311783199070724263845273045340797060519994421808377046726985124853363919795609549481
 . . . . . . . . . . . . . . . . . . . . [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)
							45e553f91ebc2fde7588b818e86af545bb8d1134
 . . . . . . . . . . . . . . . . [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 (29 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.singapore-plumber.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)
							00ef0076006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d91300000170beaaf5bf000004030047304502210099ce64ced6a2c5e6efab813614c990357f540e5fc008f132a70060e8115b208202203c655b609ce3663a94cbd64b42681e6969935681254bffc8e1205aa4e26c426400750007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c00000170beaaf5c4000004030046304402207c7677ce4fc75548083ad8236ab19a5638a8ca62aefb427bea41570affbb9d72022001b0ceae8ccbe7f6caf48fe5464d1bed43db16b4219404a912a4416235444964
 . . . . [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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