What is this website built with?

Every platform leaves traces in the code it serves. The detector reads the raw page and looks for them:

• Response headers: some platforms, and CDNs like Cloudflare, Vercel and Netlify, name themselves.
• Meta generator tag: WordPress, Drupal, Joomla, Webflow and Framer write their name in the page head.
• Asset domains: files from cdn.shopify.com mean Shopify, and a /wp-content/ folder means WordPress.
• Cookies and markup: Shopify's cart cookies, Elementor and Divi class names, Next.js data blocks.

Weaker hints show as likely, and every result lists its signal so you can confirm it.

Detection only sees what the server sends. Sites built with JavaScript after loading, sites that block automated requests and custom-built sites can show little or nothing. A footer year proves nothing on its own: some sites update it automatically.

The tool also checks the basics: HTTPS, a mobile viewport tag, a page title, a meta description and the footer copyright year. Treat all of it as research that tells you where to look, not what to assert.

• A builder subdomain like wixsite.com usually means a free plan. The owner wants a site but lacks time, so a managed site is an easy offer.
• Paid Wix, Squarespace or GoDaddy: the owner pays monthly and does the work. Pitch time and results.
• WordPress needs ongoing updates. A care plan is often an easier yes than a rebuild.
• Shopify is a store. Pitch store work, not a brochure site.
• Webflow, Framer or Lovable usually means a recent designer build. Pitch local SEO and conversion instead.

Mention one specific, checkable thing: a missing viewport tag with a phone screenshot, a site browsers mark as not secure, or a years-old copyright year. Keep it helpful. The owner built or paid for this site, so point to a fixable problem rather than calling it outdated.

Want more businesses to check? SiteSeeker finds local businesses from map listings by city and category, flags the ones with no website, and generates a preview site to send with your first message.