le-all.pem

  https://letsencrypt.org/certificates/
  Let’s Encrypt Authority X3 (IdenTrust cross-signed): [txt] [pem] [der]

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

   Let’s Encrypt Authority X4 (IdenTrust cross-signed)
   https://letsencrypt.org/certificates/

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

  IdentiTrust root chain https://www.identrust.com/certificates/trustid/root-download-x3.html

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

   Let’s Encrypt Authority X1 (IdenTrust cross-signed)

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

  Let’s Encrypt Authority X2 (IdenTrust cross-signed): 

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

  ISRG Root X1

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