📄️ alongside login
a page with both a newsletter signup form (opaque email field id/name) and a separate login form containing only a password field
📄️ no form
a newsletter signup email input with an inline submit button and no enclosing `<form>` element — a common pattern in landing-page hero sections.
📄️ opaque id
a newsletter signup form whose email field has no username-related keywords in its `id`, `name`, or `label` — only `type="email"` signals its purpose.
📄️ simple
a newsletter signup form with an email-named input field