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WHOIS / RDAP lookup
updated
Port scan + probeing
DNSBL blacklist check
Reverse DNS
CIDR calculator
beta
What is my IPv4 and IPv6?
GeoIP location
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Port scan + probeing
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What is my IPv4 and IPv6?
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Color picker
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HTML encode/decode
beta
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URL encode/decode
beta
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beta
BASE64 encode/decode
beta
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beta
What is my IPv4 and IPv6?
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SSL certificate check
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Related tools
DNS lookup
facebook.com
DNS propagation check
updated
facebook.com
WHOIS / RDAP lookup
updated
facebook.com
WHOIS / RDAP lookup
updated
31.13.80.36
Port scan + probeing
facebook.com
HTTP/S request tool
facebook.com
SSL check of 'facebook.com'
Multiple A-records!
The domain 'facebook.com' has severals A/AAAA-records - and thereby multiple IP's to check.
selected
31.13.80.36
click to use
2a03:2880:f10e:83:face:b00c:0:25de
Certificat warning
Certificat '*.facebook.com' SUCCEDED the verification, but raised some warnings: Certificate will expire soon!
Certificate retrival
Certificate '*.facebook.com' retrived from
https://facebook.com/
(31.13.80.36) using TLS 1.3, in a total of 160ms.
Basic verification
Host:
facebook.com
Protocol:
TLS 1.3, cipher algorithm AES128
Verification:
Succeeded!
Chain of certificates
3 of 3 - End-Entity
*.facebook.com
Certificat:
*.facebook.com, Meta Platforms, US
Issued by:
DigiCert SHA2 High Assurance Server CA, DigiCert Inc, US
Valid:
From 09-01-2023 to 03-04-2023
Verification:
Warning: Certificate will expire soon!
SAN's:
*.facebook.com *.facebook.net *.fbcdn.net *.fbsbx.com *.m.facebook.com *.messenger.com *.xx.fbcdn.net *.xy.fbcdn.net *.xz.fbcdn.net facebook.com messenger.com
Algorithm:
sha256RSA
Serial:
074F9487EB7DABDF4E489A788C72155C
SHA1 thumbprint:
A532DF0039D024707F05CA4F17A42DA4578E03E1
SHA256 thumbprint:
15C254BAA35C3D75B8CAD6BCE7C2E87987206547F96084D43AA45305F383D801
2 of 3 - Intermediate
DigiCert SHA2 High Assurance Server CA
Certificat:
DigiCert SHA2 High Assurance Server CA, DigiCert Inc, US
Issued by:
DigiCert High Assurance EV Root CA, DigiCert Inc, US
Valid:
From 22-10-2013 to 22-10-2028
Verification:
Succeeded!
Algorithm:
sha256RSA
Serial:
04E1E7A4DC5CF2F36DC02B42B85D159F
SHA1 thumbprint:
A031C46782E6E6C662C2C87C76DA9AA62CCABD8E
SHA256 thumbprint:
19400BE5B7A31FB733917700789D2F0A2471C0C9D506C0E504C06C16D7CB17C0
1 of 3 - Root certificate
DigiCert High Assurance EV Root CA
Certificat:
DigiCert High Assurance EV Root CA, DigiCert Inc, US
Issued by:
DigiCert High Assurance EV Root CA, DigiCert Inc, US
Valid:
From 09-11-2006 to 09-11-2031
Verification:
Succeeded!
Algorithm:
sha1RSA
Serial:
02AC5C266A0B409B8F0B79F2AE462577
SHA1 thumbprint:
5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25
SHA256 thumbprint:
7431E5F4C3C1CE4690774F0B61E05440883BA9A01ED00BA6ABD7806ED3B118CF
Log
Multiple A-records!
Domain 'facebook.com' has several A-records, and thereby multiple IPs to check. IP 31.13.80.36 will be used.
SSL certificate fetched from 'https://facebook.com/', IP 31.13.80.36, using TLS 1.3.
Full chain of certificates has been loaded and verified in 142ms.
Host 'facebook.com' is matching Subject/SAN 'facebook.com' from certificate. All good!
Protocol TLS 1.3 verified okay!
Certificat warning
Certificat '*.facebook.com' SUCCEDED the verification, but raised some warnings: Certificate will expire soon!