$ headless-seo-check http://127.0.0.1:4312 --urls /static --verbose --plain
--- stdout+stderr ---
headless-seo-check: checking http://127.0.0.1:4312 …
headless-seo-check: 1 of 1 URL selected, from --urls
run	http://127.0.0.1:4312	--urls	1	1
page	http://127.0.0.1:4312/static	checked	200	dynamic	325	17	1	1	-
finding	http://127.0.0.1:4312/static	error	dynamic-render	rendered on every request, never cached at the edge
detail	http://127.0.0.1:4312/static	dynamic-render	cache-control: private, no-cache, no-store, max-age=0, must-revalidate
finding	http://127.0.0.1:4312/static	warn	canonical-missing	no canonical link in the served HTML
summary	checked	1
summary	dynamic	1
summary	unclear	0
summary	noindex_header	0
summary	hreflang_drift	0
summary	hreflang_dead_target	0
summary	empty_html	0
summary	sitemap_errors	0
summary	unreachable	0
summary	blocking	1
summary	warnings	1
summary	interrupted	0
summary	exit_code	1
--- exit code: 1 ---