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Tags that cause child tags not to be found in the DOM

⚠ Browser differences
Chrome logo 10
Firefox logo 11
Edge logo 10
Safari logo 11

This vector demonstrates Shazzer's new placeholder "notfound", you can use this when you want to perform a HTML fuzz and log every time the element isn't found.

hackvertor
Created byhackvertor
Created Jul 18, 2024
Updated May 27, 2025

Tweet
Detecting browser...
CategoryHTML Parsing
VisibilityPublic
TypeHTML
CharsetUTF-8
$[data1] placeholderhtml
Template used:
<$[data1]><notfound>

Sample payloads

<frameset><notfound>
<iframe><notfound>
<noembed><notfound>
<noframes><notfound>
<script><notfound>
<select><notfound>
<style><notfound>
<template><notfound>
<textarea><notfound>
<title><notfound>
<xmp><notfound>

Fuzz results

Chrome logo
Chrome 144.0.0.0 desktop Windows NT 10.0
Updated31 Jan 2026
Found 10 results
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Chrome logo
Chrome 143.0.0.0 desktop macOS 10.15.7older version
Updated28 Jan 2026
Found 10 results
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Firefox logo
Firefox 147.0 desktop Linux
Updated1 Feb 2026
Found 11 results
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Firefox logo
Firefox 128.0 desktop macOS 10.15older version
Updated18 Jul 2024
Found 11 results
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Edge logo
Microsoft Edge 144.0.0.0 desktop Windows NT 10.0
Updated30 Jan 2026
Found 10 results
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Safari logo
Safari 17.4 desktop macOS 10.15.7
Updated18 Jul 2024
Found 11 results
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