Checklist
Phone, email and street in the footer, so nobody has to look for them.
One sentence a neighbor would use, not a slogan.
For screen readers and for search engines, see alt text.
Compress pictures and load the ones further down only when they come into view.
Send a test message from your phone and answer it.
If you moved pages, set a permanent redirect for each one.
In the footer of every page, one click away.
Without calling anyone, in under a minute.