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Payments

Square in Homepage Source

Square provides payments and commerce tools, including a web payments SDK.

142,523 estimated matches across 131,219,565 indexed homepages refreshed quarterly · September 2026

The source-code fingerprint

web.squarecdn.com Search this footprint →

Square's Web Payments SDK loads from web.squarecdn.com (js.squareup.com hosts the legacy payment form). Matching the SDK host finds sites that actually take Square payments, not pages that merely link to squareup.com.

Likely false positives: Redirect-style Square checkout links (square.link) never appear in storefront source, so casual Square sellers are undercounted.

Stored source examples for Square

These examples matched web.squarecdn.com in stored homepage source when the query was sampled on 2026-10-14. The sites may have changed since the source was captured. A match establishes a source reference; it does not confirm an active installation or code execution.

  • wpastra.com ...rocketcdn"],"cdn.shortpixel.ai":["essential","shortpixel"],"web.squarecdn.com":["essential","square"],"js.squareup.com":["essential","squ...
  • wpspectra.com ...tial","razorpay"],"rocketcdn.me":["essential","rocketcdn"],"web.squarecdn.com":["essential","square"],"js.squareup.com":["essential","squ...
  • prestoplayer.com ...rocketcdn"],"cdn.shortpixel.ai":["essential","shortpixel"],"web.squarecdn.com":["essential","square"],"js.squareup.com":["essential","squ...
  • wpschema.com ...rocketcdn"],"cdn.shortpixel.ai":["essential","shortpixel"],"web.squarecdn.com":["essential","square"],"js.squareup.com":["essential","squ...
  • www.galvestonhistory.org ... SEO Premium plugin. -->\n\n\n<link rel='dns-prefetch' href='//web.squarecdn.com' />\n<link rel='dns-prefetch' href='//fonts.googleapis.com' ...
  • ultimateelementor.com ...rocketcdn"],"cdn.shortpixel.ai":["essential","shortpixel"],"web.squarecdn.com":["essential","square"],"js.squareup.com":["essential","squ...
  • www.ultimatebeaver.com ...rocketcdn"],"cdn.shortpixel.ai":["essential","shortpixel"],"web.squarecdn.com":["essential","square"],"js.squareup.com":["essential","squ...
  • www.ttpbooks.com ...tmysite.com';\n window.SQUARE_WEB_PAYMENTS_SDK = 'https://web.squarecdn.com/v1/square.js'\n window.PUBLIC_SQUARE_URL_BASE = 'squareup...
  • surecart.com ...rocketcdn"],"cdn.shortpixel.ai":["essential","shortpixel"],"web.squarecdn.com":["essential","square"],"js.squareup.com":["essential","squ...
  • cartflows.com ..."paypal"],"checkout.razorpay.com":["essential","razorpay"],"web.squarecdn.com":["essential","square"],"js.squareup.com":["essential","squ...
  • www.iheartjane.com ...-E7bBL_4jkDu0l61NXYQFPg","squareWebPaymentsSdkUrl":"https://web.squarecdn.com/v1/square.js","strongholdEnv":"live","strongholdIntegration...
  • www.artavita.com ...l="stylesheet" type="text/css">\n\n <script src="https://web.squarecdn.com/v1/square.js"></script>\n \n <meta name="csrf-param" co...
  • www.paschalsatlanta.com ...Z0","squareEnvironment":"production","squareJsUrl":"https://web.squarecdn.com/v1/square.js"},"RestaurantActionBar:8272":{"__typename":"Re...
  • suremembers.com ...rocketcdn"],"cdn.shortpixel.ai":["essential","shortpixel"],"web.squarecdn.com":["essential","square"],"js.squareup.com":["essential","squ...
  • thebridgehead.ca ...-width, initial-scale=1" /><link rel='dns-prefetch' href='//web.squarecdn.com' />\n<link rel='dns-prefetch' href='//fonts.googleapis.com' ...
  • zipwp.com ...tial","razorpay"],"rocketcdn.me":["essential","rocketcdn"],"web.squarecdn.com":["essential","square"],"js.squareup.com":["essential","squ...
  • brainstormforce.com ...rocketcdn"],"cdn.shortpixel.ai":["essential","shortpixel"],"web.squarecdn.com":["essential","square"],"js.squareup.com":["essential","squ...
  • philzcoffee.com ...counts.google.com/gsi/client"></script><script src="https://web.squarecdn.com/v1/square.js"></script><script src="https://assets.philzcof...
  • startertemplates.com ...rocketcdn"],"cdn.shortpixel.ai":["essential","shortpixel"],"web.squarecdn.com":["essential","square"],"js.squareup.com":["essential","squ...
  • savingcranes.org ... / Yoast SEO plugin. -->\n\n\n<link rel='dns-prefetch' href='//web.squarecdn.com' />\n<link rel="alternate" title="oEmbed (JSON)" type="appli...
  • badaxethrowing.com ... / Yoast SEO plugin. -->\n\n\n<link rel='dns-prefetch' href='//web.squarecdn.com' />\n<link rel="alternate" type="application/rss+xml" title=...
  • www.71above.com ...Z0","squareEnvironment":"production","squareJsUrl":"https://web.squarecdn.com/v1/square.js"},"RestaurantActionBar:12567":{"__typename":"R...
  • palestineaction.org ... / Yoast SEO plugin. -->\n\n\n<link rel='dns-prefetch' href='//web.squarecdn.com' />\n<link rel='dns-prefetch' href='//fonts.googleapis.com' ...
  • www.traveldocs.com ...\r\n<![endif]-->\r\n<script type="text/javascript" src="https://web.squarecdn.com/v1/square.js"></script>\r\n<script type="text/javascript">\r\nc...
  • www.bustbright.com ...tmysite.com';\n window.SQUARE_WEB_PAYMENTS_SDK = 'https://web.squarecdn.com/v1/square.js'\n window.PUBLIC_SQUARE_URL_BASE = 'squareup...
  • www.buxtonmuseum.com ...tmysite.com';\n window.SQUARE_WEB_PAYMENTS_SDK = 'https://web.squarecdn.com/v1/square.js'\n window.PUBLIC_SQUARE_URL_BASE = 'squareup...
  • arbraska.com ...esheet"> \n\n\n <script type="text/javascript" src="https://web.squarecdn.com/v1/square.js"></script>\n\n<!-- Start cookieyes banner -->\n ...
  • topropebelts.com ...\t\t<!-- All in One SEO -->\n\n<link rel='dns-prefetch' href='//web.squarecdn.com' />\n<link rel='dns-prefetch' href='//challenges.cloudflare....
  • www.mtbaldyresort.com ...tmysite.com';\n window.SQUARE_WEB_PAYMENTS_SDK = 'https://web.squarecdn.com/v1/square.js'\n window.PUBLIC_SQUARE_URL_BASE = 'squareup...
  • www.roundpeak.com ...tmysite.com';\n window.SQUARE_WEB_PAYMENTS_SDK = 'https://web.squarecdn.com/v1/square.js'\n window.PUBLIC_SQUARE_URL_BASE = 'squareup...

Showing 30 checked source examples. The headline is estimated matches. Open the full ranked list, inspect the matched source, and export the domain list →

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How this works

The headline distinguishes candidate upper bounds (index prefilter), estimated matches (a projection from checked samples) and verified matches (an exact count established by the engine). The index contains 131,219,565 homepage documents, one homepage per hostname, including subdomains. The source index was promoted 2026-09-22 and follows a quarterly rebuild schedule. The sample date is when this query was checked against the stored index, not a new crawl of each example site.

Comparing adoption across tools? The Web Technology Adoption Report ranks the most common tags in the index side by side.