When you purchase GlobalSign DV SSL certificate, you will receive CA bundle from certificate authority. CA bundle contains root & intermediate certificate, you must add it during SSL installation process.
Copy and Paste all characters include the -----BEGIN CERTIFICATE-----
and -----END CERTIFICATE-----
lines from the below box into a text editor and save into your server.
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DV RSA/ECC Intermediate (GlobalSign GCC R3 DV TLS CA 2020)
-----BEGIN CERTIFICATE-----
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D/fayQ==
-----END CERTIFICATE-----
R3 GlobalSign Root Certificate
-----BEGIN CERTIFICATE-----
MIIDXzCCAkegAwIBAgILBAAAAAABIVhTCKIwDQYJKoZIhvcNAQELBQAwTDEgMB4
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-----END CERTIFICATE-----