Toolumen is Stacklumen's web-tools product — SEO + AEO auditing, Open Graph previewing, contrast checking, Webflow embed sizing, HEIC conversion, and more. The full suite now runs at toolumen.com/app, free with a Stacklumen account. Browse what's live below.
Paste a URL. Get a graded report on title, meta, canonical, OG, JSON-LD, h1, robots, sitemap, and llms.txt.
Render any URL the way Slack, iMessage, Twitter, LinkedIn, Discord, and Google would.