www.iijco.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:ef:1c:0f:fa:61:94:d6:cc:94:02:52:8a:ae:61:c9:18: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.iijco.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:ef:1c:0f:fa:61:94:d6:cc:94:02:52:8a:ae:61:c9:18:e7
Serial Number (int): 342701644836053484508947215550058989164775
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: ef:38:50:78:bf:94:23:fc:a3:2b:9d:7b:77:fb:76:ac:c7:31:b7:87
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): bf:d6:d2:7c:84:d9:44:c3:7f:6c:6d:65:e4:92:e9:d7:85:50:6d:5f
Fingerprint (sha256): 8a:b8:19:97:74:e2:77:8b:82:4f:a5:0e:67:3b:f1:10:3e:07:09:22:4c:22:31:7e:b4:b3:c3:cd:e7:4d:d5:f5

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.iijco.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.iijco.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.iijco.com

Other certificates including the domain name iijco.com

(limited to 100 certificates)

Certificate

The complete raw certificate details for www.iijco.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 342701644836053484508947215550058989164775
 . . . . . . . . [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 2019-10-13 09:24:20 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-11 09:24:20 +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.iijco.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 855152111399170931296581351260345118421521028010062659302344152557026736100226587565938273967297589017442553503171950570530255210744355115983800663910322433836329194813094368701805547450128141381742124223034721234956622199549524717073886893276865772746266182411940736327379983521911718664736269085657754561550875814957656662224508927824274803141198207131306215361522594586707728012280175835909534966762967957948750422689002386870193669852033431415780445489060621613365600851678289716359140204638619223515135657570683847924398132602808125921086316228917276789717498442022197739256521986233289549978885096703936736622505030223616971777274568302655063119679675951762310101941885603474770853870887749074865579115803940884847946024042533841269294617670858749476755785624487591388250761268103703808561743609356002149871616102158476328130072043294533649413273096270060161531442073434443711192230472995235204745775901958859091819325713162795457874429020259741842814330740034609070317859079498698086713857549036446872691083579911584145757332728418498610688717834684155774695867631529095336827570728095546212891151702017236322875537737621375851549820500054572584629031246500515387019468249509082887740101613183050309807551718835135948589203903
 . . . . . . . . . . . . . . . . . . . . [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)
							ef385078bf9423fca32b9d7b77fb76acc731b787
 . . . . . . . . . . . . . . . . [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 (17 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.iijco.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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f0007600f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016dc4a5c3950000040300473045022100fede478fcd2943e15b854b1f28828d674ce78c538f09254b1a78b1fe1d5e2d6902207405d02de895934993797c1bb757fd512c3e0cb95e87a59283e73feaa24b8866007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016dc4a5c39700000403004730450221008bfbd4dfd3be909e25d92da32764acba80d7239bb71b152766432ad31ae0dd24022038ae9b84bd3af1665d4f3b70d927b15c0f90de4a7265080b81701813fddae7b0
 . . . . [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)
		005173a270dc3a2250cb8781de2e5ce86a27515674f2484faa25e868ff6c9538225362698ad7cc62ab84cadbc9a79c9102cf4a8a5c93eaac33cb62c316542ccd75bbdbc7d0137b2fb82016805ab52a020495127de33217cbceb941c2dfcabcdfc15c5e8af7d2daa3c5a1be7893decfc2d99389e565f0dad9826bd8c659dc40a86c2bd8fe011decbb08543666b16914beb0f02ea0f5d1c5bb846d3984712f620f78549fc99d18b1c6109782c804cde36d6518f7fde023f46434cfdf25b334b6e406f1a0a4f53959e62fed25deddff0de2e2a40b7243ff041dc13e156102d05f343e5a7c69cfc78636f2ed7e19581d2ec4c0248574fdd975cf009f50aeecb08824a8