Websites Using Heap

Heap is an autocapture product-analytics tool that records events without manual instrumentation.

1,467,560 sites detected across 129,313,463 indexed domains refreshed monthly · August 2026

The source-code fingerprint

heap.load Search all 1,467,560 results →

The snippet initializes with heap.load("<appId>"), so the literal heap.load appears inline in the page.

Likely false positives: None significant.

Example websites using Heap

These domains all contain the heap.load fingerprint in their homepage source right now. A match is a verified substring of the live page, so confidence is high, the false positives noted above are the main caveat.

www.hotjar.com ... window.heapReadyCb || [], window.heap = window.heap || [], heap.load = function (e, t) {\n window.getDefaultHeap...
istory.teachable.com ...cript type="text/javascript">\n window.heap=window.heap||[],heap.load=function(e,t){window.heap.appid=e,window.heap.config=t=t||{...
teachable.com ...cript type="text/javascript">\n window.heap=window.heap||[],heap.load=function(e,t){window.heap.appid=e,window.heap.config=t=t||{...
www.charitynavigator.org ...function () {\n window.heap = window.heap || [];\n\n heap.load = function (appId, heapConfig) {\n window.heap.appid ...
authy.com ...ipt type="text/javascript">\n window.heap=window.heap||[],heap.load=function(e,t){window.heap.appid=e,window.heap.config=t=t||{...
www.bonfire.com ...heapReadyCb || [];\r\n window.heap = window.heap || [];\r\n\r\n heap.load = function (envId, config) {\r\n window.heap.envId = envId...
vocal.media ...vascript">\n\t\t\t\t\t\t\t\twindow.heap = window.heap || [];\n\t\t\t\t\t\t\t\theap.load = function(b, a) {\n\t\t\t\t\t\t\t\t\t\twindow.heap.appid = b;\n\t\t\t\t\t\t\t...
www.topcoder.com ...pReadyCb=window.heapReadyCb||[],window.heap=window.heap||[],heap.load=function(e,t){window.heap.envId=e,window.heap.clientConfig=...
www.foxsports.com ...ReadyCb || [];\n window.heap = window.heap || [];\n heap.load = function(e, t) {\n window.heap.envId = e;\n w...
anaconda.org ...ipt type="text/javascript">\n window.heap=window.heap||[],heap.load=function(e,t){window.heap.appid=e,window.heap.config=t=t||{...
www.23andme.com ...s method\n stubs (heap.track, heap.identify, ...) INSIDE heap.load(), so window.heap\n must not be assigned until we are re...
birdeye.com ...t="true" type="text/javascript">window.heap=window.heap||[],heap.load=function(e,t){window.heap.appid=e,window.heap.config=t=t||{...
www.flightaware.com ...id\":\"heap_1\",\"children\":[\"window.heap=window.heap||[],heap.load=function(e,t){window.heap.appid=e,window.heap.config=t=t||{...
www.boundless.com ...ript type="text/javascript"> \nwindow.heap=window.heap||[],heap.load=function(e,t){window.heap.appid=e,window.heap.config=t=t||{...
nation.foxnews.com ...heapReadyCb || [];\n window.heap = window.heap || [];\n heap.load = function(e, t) {\n window.heap.envId = e;\n windo...

Showing 15 of 1,467,560 matching sites. Open the full ranked list, inspect the matched source, and export the domain list →

Related technologies

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How this works

SearchWebCode indexes the raw HTML, CSS and JavaScript source of public web pages. To find sites using Heap we match the literal fingerprint heap.load, the code Heap ships, against that index, then verify each match against the raw source. Counts reflect the current index (129,313,463 domains, refreshed monthly, last built August 2026) and grow as we scale toward the whole web. Run the search yourself to see every match, view the full page source for any result, filter by TLD or regex, and export the domain list.

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