Your root domain returns a 301 redirect to the www site. You’d need to correct that on your origin.
* Host toplinepro.com:443 was resolved.
* IPv6: (none)
* IPv4: 99.83.190.102, 75.2.70.75
* Trying 99.83.190.102:443...
* Connected to toplinepro.com (99.83.190.102) port 443
[snip]
* SSL connection using TLSv1.3 / AEAD-AES256-GCM-SHA384 / [blank] / UNDEF
* ALPN: server accepted h2
* Server certificate:
* subject: CN=toplinepro.com
* start date: Feb 18 13:28:56 2025 GMT
* expire date: May 19 13:28:55 2025 GMT
* issuer: C=US; O=Let's Encrypt; CN=R10
* SSL certificate verify ok.
* using HTTP/2
[snip]
* Request completely sent off
< HTTP/2 301
HTTP/2 301
< date: Sat, 29 Mar 2025 01:15:21 GMT
date: Sat, 29 Mar 2025 01:15:21 GMT
< content-type: text/html
content-type: text/html
< content-length: 166
content-length: 166
< location: https://www.toplinepro.com/
location: https://www.toplinepro.com/
< strict-transport-security: max-age=31536000
strict-transport-security: max-age=31536000
< x-cluster-name: us-east-1-prod-hosting-red
x-cluster-name: us-east-1-prod-hosting-red
<
The 403 is not related to the redirection. See #6 here… it’s being returned by your origin server for requests from Cloudflare’s edge.
Ensure your origin is configured to accept connections from Cloudflare IPs/ review your logs for the reason the requests were blocked.