www.ifdef.io

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:3d:d1:61:51:d7:22:57:b3:9e:54:62:59:b6:8f:b7:8d:6f 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.ifdef.io

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:3d:d1:61:51:d7:22:57:b3:9e:54:62:59:b6:8f:b7:8d:6f
Serial Number (int): 369484682073052419504934947843025317367151
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 2a:a4:bc:08:4e:2b:43:8e:54:07:ed:a7:d4:10:bd:b5:36:b8:4d:dd
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): a0:e0:cf:cd:c2:50:18:58:cd:c3:3b:02:0b:39:19:7f:6d:2e:5f:d3
Fingerprint (sha256): 6b:72:59:c6:c3:61:da:ee:55:0c:c6:86:61:ec:6f:a2:ef:94:d3:39:83:68:bc:2c:94:30:03:3b:c9:85:e7:86

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.ifdef.io

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.ifdef.io

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

ifdef.io
www.ifdef.io

Other certificates including the domain name ifdef.io

(limited to 100 certificates)
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www.ifdef.io
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ifdef.io
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api.blip.ifdef.io
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ifdef.io
api.blip.ifdef.io
prosperis.com.br
api.ifdef.io
ifdef.io
ifdef.io
api.ifdef.io
www.ifdef.io
www.ifdef.io
staging.design4.pro
ifdef.io
docs.ifdef.io
ifdef.io
www.ifdef.io
prod.ifdef.io
www.ifdef.io
ifdef.io
api.ifdef.io
www.kmltech.xyz
ifdef.io
www.ifdef.io
app.vibix.io
gintas.io
privacypolicy.mhdanh.com
gintas.io
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ifdef.io
www.ifdef.io
docs.ifdef.io
www.ifdef.io

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEApYQSOER5olx2wg5Txdus
oyL079LjgEIq2AVaijbDb0Zsbz0vLvDiHNnF/yuXOiW4N+euXYGqNazVtMZOLoM8
le0X5dMDrYFVqZJyPUgCJ6/3n6ltYRkhf8poDzEQ9osHjnG1HM7lvSHA6G71kR4E
uLTHoaqnzKigtr337fN9+B73MAfNfAg34sQd/UV1gd9U3GwroQ/TA2MFlgiCwMo9
zx9qxp7oovD6p4ACe0cvyLVbRAtA0gQy189gxVm/vAPd60jAF9mSux3nybid6i+u
R3K1Qd35vu/DcBzZOvKnlW4br5/tFOW4uWkxJvU6ckS4y5er0oJ1Q83xoh4y8Npj
UwIDAQAB
-----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 369484682073052419504934947843025317367151
 . . . . . . . . [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 2019-11-20 10:41:22 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-02-18 10:41:22 +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.ifdef.io'
 . . . . . . . . [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 20894447041162237462465275533490623952781651479134845774702655344815638811097699799230783637309893710024231261645249574412213064943663938150190008380263502161912702615484353410607412125353506111359031291237534396227716046845480242660158174322478989075279953195910079234329799873961647904324568739868213955354185086652739185928282866115450040755252120958640465755507749535437811552279646980657539150134785158083449685215563670508445690171014082313866279799061678216801251263651020234375571328729657214596461061048399841411472282946708147223521939445717505179469082583685511845349566090966086810853280564770462120960851
 . . . . . . . . . . . . . . . . . . . . [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)
							2aa4bc084e2b438e5407eda7d410bdb536b84ddd
 . . . . . . . . . . . . . . . . [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 (26 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'ifdef.io'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.ifdef.io'
 . . . . . . . . . . . . . . . . [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)
							00ef007500b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016e889df218000004030046304402204e00beaebc8aacd6364ff118f3f312d5bbdf9624fdeefe2473d5d4fc55c4625402200c7e7e3f9bdb7b653caea2b62261950f40a004b35ea0d0294557cdb4fbd35fd40076006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016e889df2420000040300473045022100c7a176826930e198b1aeebae290c94f3df8f9f9489da4e578f502ec380271f9a022048679f486561f23fe3bddfee70905aad3ad4e059973f7e1254ba1bc5ede1ddd9
 . . . . [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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