OpenLink Structured Data Sniffer

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

Total ratings for OpenLink Structured Data Sniffer

4.76 (Rating count: 17)

User reviews summary

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 Chrome Web Store does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.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 insight into RDF data on websites
Helpful for detecting JSON-LD and other semantic markup
Elegantly designed UI with tabs for each syntax

Cons

Adds popup and snackbar items to the DOM
Expanding prefixed node names fails in certain cases

Most mentioned

Detects JSON-LD and other semantic markup formats/syntaxes
Useful for understanding what is on web pages
Well-designed UI with tabs for each syntax

See reviews for OpenLink Structured Data Sniffer on Chrome Web Store

Recent reviews for OpenLink Structured Data Sniffer

Recent rating average: 4.60

All time rating average: 4.76

Rating filters

5 star

Date	Author	Lang	Comment
2024-02-17	Doğa Armangil	en	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 !)
2023-12-06	Duy Nguyen
2023-04-04	Joshua Hintze		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.
2021-11-12	Ron Henry		Cool, I've been looking for that
2019-05-09	Aaron Bradley		Hands down the best-in-class extension for inspecting a page for the presence or absence of structured or semi-structured data.
2018-02-12	Tyson Graaff		Just what I was looking for. Let's me know if my JSON-LD is on the page and I can check it in an easy to read format.
2017-04-19	Michael Andrews		Very helpful tool for seeing structured data on a web page.
2016-06-21	Rich Missey		Dug around for over an hour trying to find an extension that could display JSON-LD data pulled through an AJAX call. Thought I was going to have to write the thing myself!
2015-12-21	A Google user		I've been enjoying using this extension to see what markup has been used on pages. I've recommended that others install and use this extension as well. It makes understanding what is going on upon pages easier to glean, in a helpful way.
2015-12-21	Barbara Starr		I have long been awaiting the arrival of a chrome extension that can effectively detect json-ld and display it in my chrome browser as an alert/extension with the relevant data. This tool detects not only json-ld, but all semantic markup formats/syntaxes (Microdata, rdfa, etc). The UI is elegantly and well thought out in terms of the fact that there are tabs for each syntax. I love this extension and highly recommend it!! As a caveat, it has other interesting features I have not yet fully explored, but that does not detract in any way from my above statements.