HTTPS and www
Sites often redirect http:// → https:// and choose either www. or the apex hostname as the preferred host. Doing both in separate hops (or bouncing between them) is a common post-migration smell.
What ChainTrace flags
When scheme or www/apex host flips between hops, the report lists those changes. Prefer consolidating to one redirect into the final preferred URL when your stack allows it.
Not a certificate checker
ChainTrace does not validate TLS certificates, HSTS preload lists, or mixed-content issues. It only observes redirect and host-shape changes along the hop list.