www.fethiye.org

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:6b:3c:33:f8:b3:7d:c0:cc:89:ab:14:c7:d0:dd:cc:ad:05 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.fethiye.org

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:6b:3c:33:f8:b3:7d:c0:cc:89:ab:14:c7:d0:dd:cc:ad:05
Serial Number (int): 297827094586966377260590974833567363542277
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 7b:c2:97:be:03:3b:53:21:41:2c:46:2e:e6:60:b1:ed:a9:e1:58:05
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 35:77:32:ca:83:7f:d8:ac:61:d9:f9:af:ed:44:43:34:9a:20:19:79
Fingerprint (sha256): 94:c8:c7:cd:e3:1b:e0:3a:27:c7:7b:6b:5a:22:56:68:fa:e3:f6:21:e2:dc:f6:da:aa:ba:98:96:ad:d7:bc:f1

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.fethiye.org

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.fethiye.org

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.fethiye.org

Other certificates including the domain name fethiye.org

(limited to 100 certificates)
fethiye.org
fethiye.org
www.fethiye.org
pensaukee.com
fethiye.org
fethiye.org
www.fethiye.org
fethiye.org
fethiye.org
www.fethiye.org
summit.bible

Certificate

The complete raw certificate details for www.fethiye.org 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 297827094586966377260590974833567363542277
 . . . . . . . . [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 2020-01-07 21:13:18 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-04-06 21:13:18 +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.fethiye.org'
 . . . . . . . . [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 852099926034609973934428386283384371216291679669792985848949212853707983688432784290750206436216263075636612474507818883165283628340660530753049246552047670577732619249152828598894005993879790025893854246878081694507566301972193809330999889277150814424403584674157576614321601206382079562437154295963450688249986021429149111342010243100005903485541500146871430157905372978450328198871554912315978465732828519172103588399922342599007722455321650976682791769733310438283759740872489232964565130091047171996911685623796756542758571384393313516624017946219888010830723174821523672703934546592790473633235311744273947715417766394192699259161550364145346489806683512118411177497778292675840080419922552743753371221498871938176041689649390861306193927905340344905607260722146585890495816575325339402573183713413323060100422554526441872642814762671093268551100607140359074532041700159023532197064160311375093892840017083086132759116333358780490032577878982630290307251337225851515155716548072343793964431809990020448700721650164337735752229966572772934578328259928989341888953464649022894576057827521226764297273888201419276814941980930106128613894958798067463089564885598855068714446886719252528863445177272079843141637506307050322048528961
 . . . . . . . . . . . . . . . . . . . . [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)
							7bc297be033b5321412c462ee660b1eda9e15805
 . . . . . . . . . . . . . . . . [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 (19 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.fethiye.org'
 . . . . . . . . . . . . . . . . [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)
							00f1007700b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016f8211bd470000040300483046022100e38cd4426d190034ad2823dca9bf11b9c6c655a7a2f704e4d3277701baba1fcf02210081ad8eefabff0b129117b693ce4feeed88ca4dbc50b3393f9e3104cecb1868ca0076005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016f8211bd720000040300473045022100c135399d97e3842e96cf879cc434a8829848bf89e54932a4ea9ca8947d332a2502202c509f186060ec5caee47631667ff015986d5c53e12e8b30c8384d760c372a40
 . . . . [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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