Duolingo Inc

- Duolingo Inc -

Issued by Entrust Verified Mark CA - VMC2

About this certificate

This digital certificate with serial number 04:13:8f:cc:2d:cc:6f:84:98:ef:30:ac:a8:c2:5a:23 was issued on by Entrust, Inc..

This certificate is currently not expired, we haven't checked the revocation status of this certificate but you can do this simply on revocationcheck.com. 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.

Duolingo Inc

Company registration number: 5026811
Organization: Duolingo Inc
Address: 5900 Penn Ave
State / Province: Pennsylvania
Locality: Pittsburgh
Country: US

Entrust, Inc.

Organization: Entrust, Inc.
Country: US

This certificate will expire on

Certificate Details

Serial Number (hex): 04:13:8f:cc:2d:cc:6f:84:98:ef:30:ac:a8:c2:5a:23
Serial Number (int): 5418482184744273253184610247133780515
Serial Number lenght: 123 bits, 16 octets

SubjectKeyId: 75:02:70:e6:46:20:bb:cd:02:a0:f4:fa:88:6d:a7:99:b6:57:01:0c
AuthorityKeyId: ef:bc:3c:b4:af:3a:d0:45:5e:76:54:df:c7:64:78:e9:2d:1d:74:3f

Fingerprint (sha1): 09:66:6a:77:47:e5:fe:4a:6e:1d:e4:8f:84:aa:35:49:df:84:67:3d
Fingerprint (sha256): 19:89:f6:a6:ec:3c:7e:22:83:50:80:f1:66:00:fc:36:ff:10:53:af:84:82:75:b1:fa:68:44:96:a4:5a:d5:96

Issuing Certificate URL: http://aia.entrust.net/vmc2-chain.cer

Revocation information

OCSP Server: http://ocsp.entrust.net
CRL Distribution Point: http://crl.entrust.net/vmc2.crl

Check the revocation status for certificate Duolingo Inc


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Advanced Certificate Properties

Tehnical certificate details for Duolingo Inc

Public Key Algorithm


Key Size


Signature Algorithm

SHA512 with RSA

Key Usage

Digital Signature

Extended Key Usages


11 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

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