OpenLink Structured Data Sniffer

Reveals structured metadata (Microdata, RDFa, JSON-LD, Turtle, etc.) embedded within HTML documents.

OpenLink Structured Data Sniffer: Uncover Hidden Metadata

OpenLink Structured Data Sniffer is a specialized tool designed to enhance your browsing experience by revealing embedded metadata in HTML documents. It exposes structured data islands created using various notations like Microdata, RDFa, JSON-LD, RDF-Turtle, RDF-XML, CSV, and JSON. This tool eases the process of understanding a document's metadata, which can benefit end-users, developers, and digital content managers alike. It visually indicates the presence of metadata and, upon a click, presents transformed metadata in an easy-to-understand format.

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Extension stats

By: OpenLink Software

Users: 7,000+

Rating: 4.76

(17)

Version: 3.4.8 (Last updated: 2024-11-13)

Creation date: 2020-05-30

Permissions:

storage
webRequest
contextMenus
scripting
declarativeNetRequest

Host permissions:

<all_urls>

Size: 2.67M

Email: su*****@openlinksw.com

URLs: Privacy policy

Full description: See detailed description

Ranking

# 11,887 ▲ 36

Other rankings

#1696 in Developer Tools ▲ 3 #14 in data keyword 53 ▼ 6 #231 in content optimization keyword 15 ▼ 10 #243 in software keyword 56 ▼ 14 #250 in json keyword 69 ▼ 5

Other platforms

Not available on Android

OpenLink Structured Data Sniffer (v3.4.8)

458 4.36

(11)

Not available on Edge

User reviews

These summaries are automatically generated weekly using AI based on recent user reviews. Chrome Web Store does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.

Pros

Great for providing insight into RDF data on websites.
Best-in-class extension for inspecting structured and semi-structured data.
Detects various semantic markup formats (JSON-LD, Microdata, RDFa).
User-friendly UI with tabs for each syntax.
Helpful tool for easy reading and understanding of structured data.

Cons

Contains minor bugs related to prefix URL handling.
Adds extra popup and snackbar items to the DOM.

Most mentioned

Great for inspecting structured data.
Detects JSON-LD effectively.
User-friendly interface.

User reviews

This extension is great at providing insight into the RDF data that is contained in websites. 𝕄𝕚𝕟𝕠𝕣 𝕓𝕦𝕘 𝗧𝗵𝗲 𝗶𝘀𝘀𝘂𝗲: In a turtle file, expanding prefixed node names fails if a prefix URL is missing a "/" after the host part, as in here: "@𝚙𝚛𝚎𝚏𝚒𝚡 𝚜𝚌𝚑𝚎𝚖𝚊: <𝚑𝚝𝚝𝚙𝚜://𝚜𝚌𝚑𝚎𝚖𝚊.𝚘𝚛𝚐>.". So "𝚜𝚌𝚑𝚎𝚖𝚊:𝚌𝚘𝚗𝚝𝚎𝚗𝚝𝚞𝚛𝚕" resolves to "𝚑𝚝𝚝𝚙𝚜://𝚜𝚌𝚑𝚎𝚖𝚊.𝚘𝚛𝚐𝚌𝚘𝚗𝚝𝚎𝚗𝚝𝚞𝚛𝚕/", which is not what we want. 𝗧𝗵𝗲 𝗳𝗶𝘅: Easy, if the path of the prefix URL is empty then act as if the path part were "/". (And: if the RDF-related specs don't mandate this behaviour, then maybe the specs should be fixed as well !)

Doğa Armangil, 2024-02-17

Unfortunately this plugin adds popup and snackbar items to the DOM. You can see this by inspecting DOM and seeing super_links_popup items and osds_popup junk get added to your DOM in your browser.

Joshua Hintze, 2023-04-04

Cool, I've been looking for that

Ron Henry, 2021-11-12

View all user reviews

Extension safety

Risk impact

OpenLink Structured Data Sniffer requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details

Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
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Risk likelihood

We don't have sufficient data to confidently determine the risk likelihood of OpenLink Structured Data Sniffer. Use it at your own risk.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
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