# OpenLink Structured Data Sniffer
**Wikidata**: [Q112434722](https://www.wikidata.org/wiki/Q112434722)  
**Source**: https://4ort.xyz/entity/openlink-structured-data-sniffer

## Summary
The OpenLink Structured Data Sniffer (OSDS) is a software tool developed by OpenLink Software that analyzes web pages to detect and validate structured data markup, particularly schema.org and JSON-LD. It helps developers and SEO professionals ensure proper implementation of structured data, which enhances search engine visibility and rich snippets. The tool is available as a browser extension for Chrome and Firefox and has been updated through multiple versions since its initial release.

## Key Facts
- **Type**: Software (non-tangible executable component of a computer)
- **Developer**: OpenLink Software
- **Initial Release**: 2015-12-01 (version 2.2.3)
- **Latest Version**: 2.11 (released 2016-06-02)
- **Platforms**: Available as a Chrome extension and distributed via Google Play
- **Website**: [https://osds.openlinksw.com/](https://osds.openlinksw.com/)
- **Twitter Handle**: @datasniff (active since 2016-05-18)
- **Source Code**: Hosted on GitHub ([https://github.com/openlink/structured-data-sniffer](https://github.com/openlink/structured-data-sniffer) and [https://github.com/OpenLinkSoftware/OSDS_extension](https://github.com/OpenLinkSoftware/OSDS_extension))
- **YouTube Playlist**: PLRK2jt8obd-DrF35W8XRL2EcZZ6TdoDw1
- **Firefox Add-ons URL Slug**: openlink-structured-data-sniff

## FAQs
### Q: What is the OpenLink Structured Data Sniffer used for?
A: The OpenLink Structured Data Sniffer is a browser extension that detects and validates structured data markup (such as schema.org and JSON-LD) on web pages. It helps ensure proper implementation, which improves search engine visibility and rich snippets.

### Q: Who developed the OpenLink Structured Data Sniffer?
A: The tool was developed by OpenLink Software, a company specializing in semantic web technologies.

### Q: Is the OpenLink Structured Data Sniffer available for multiple browsers?
A: Yes, it is available as a Chrome extension and distributed via Google Play. It also has a version for Firefox.

### Q: How often has the OpenLink Structured Data Sniffer been updated?
A: The tool has been updated multiple times between 2015 and 2016, with the latest version (2.11) released on 2016-06-02.

### Q: Where can I find more information about the OpenLink Structured Data Sniffer?
A: Additional details can be found on the official website ([https://osds.openlinksw.com/](https://osds.openlinksw.com/)), GitHub repositories, and various articles published on platforms like LinkedIn, Medium, and Twaino.

## Why It Matters
The OpenLink Structured Data Sniffer plays a crucial role in the digital ecosystem by helping web developers and SEO professionals ensure that structured data is correctly implemented on their websites. Properly marked-up structured data enhances search engine optimization (SEO) by enabling rich snippets, which provide more informative and visually appealing search results. This, in turn, improves user experience and can drive more traffic to websites. The tool’s availability across multiple platforms ensures broad accessibility, making it a valuable resource for anyone involved in web development or digital marketing. By validating structured data, the OpenLink Structured Data Sniffer helps maintain consistency and compliance with industry standards, ultimately contributing to a more organized and searchable web.

## Notable For
- **First Release**: One of the earliest tools dedicated to validating structured data markup, predating many similar tools.
- **Multi-Platform Support**: Available as a Chrome extension, Firefox add-on, and via Google Play, ensuring broad accessibility.
- **Comprehensive Validation**: Detects and validates schema.org and JSON-LD markup, ensuring proper implementation.
- **Developer-Friendly**: Provides detailed feedback to help developers correct errors in structured data.
- **SEO Enhancement**: Helps improve search engine visibility by ensuring rich snippets are properly displayed.

## Body
### Overview
The OpenLink Structured Data Sniffer (OSDS) is a specialized software tool designed to analyze web pages for structured data markup. It focuses on schema.org and JSON-LD, which are widely used for enhancing search engine results with rich snippets. The tool is developed by OpenLink Software, a company known for its work in semantic web technologies.

### Development and Release
- **Initial Release**: The first version (2.2.3) was released on December 1, 2015.
- **Version Updates**: The tool has been updated multiple times, with the latest version (2.11) released on June 2, 2016.
- **Source Code**: The source code is hosted on GitHub, with repositories available for both the main tool and the extension.

### Availability and Distribution
- **Browser Extensions**: Available as a Chrome extension and a Firefox add-on.
- **Google Play**: Also distributed via Google Play, making it accessible to Android users.
- **Website**: The official website ([https://osds.openlinksw.com/](https://osds.openlinksw.com/)) provides additional information and resources.

### Social Media Presence
- **Twitter**: The tool has an active Twitter account (@datasniff) since May 18, 2016, providing updates and engagement with users.

### Additional Resources
- **YouTube Playlist**: A playlist (ID: PLRK2jt8obd-DrF35W8XRL2EcZZ6TdoDw1) may contain tutorials or demonstrations.
- **External Articles**: The tool has been featured in articles on LinkedIn, Medium, and Twaino, discussing its features and benefits.

### Purpose and Functionality
- **Structured Data Validation**: The primary function is to detect and validate structured data markup on web pages.
- **SEO Improvement**: Properly marked-up structured data enhances search engine visibility and rich snippets.
- **Developer Support**: Provides feedback to help developers correct errors in structured data implementation.

### Impact
- **Industry Standard**: One of the earliest tools dedicated to validating structured data markup.
- **User Accessibility**: Available across multiple platforms, ensuring broad accessibility.
- **SEO Enhancement**: Contributes to better search engine optimization by ensuring rich snippets are properly displayed.

## References

1. [Release 2.2.3. 2015](https://github.com/openlink/structured-data-sniffer/releases/tag/v2.2.3)
2. [Release 2.3.1. 2015](https://github.com/openlink/structured-data-sniffer/releases/tag/v2.3.1)
3. [Release 2.4.2. 2015](https://github.com/openlink/structured-data-sniffer/releases/tag/v2.4.2)
4. [Release 2.5.0. 2015](https://github.com/openlink/structured-data-sniffer/releases/tag/v2.5.0)
5. [Release 2.6.1. 2016](https://github.com/openlink/structured-data-sniffer/releases/tag/v2.6.1)
6. [Release 2.7.0. 2016](https://github.com/openlink/structured-data-sniffer/releases/tag/v2.7.0)
7. [Release 2.8.0. 2016](https://github.com/openlink/structured-data-sniffer/releases/tag/v2.8.0)
8. [Release 2.9.0. 2016](https://github.com/openlink/structured-data-sniffer/releases/tag/v2.9.0)
9. [Release 2.10. 2016](https://github.com/openlink/structured-data-sniffer/releases/tag/v2.10)
10. [Release 2.11. 2016](https://github.com/openlink/structured-data-sniffer/releases/tag/v2.11)
11. [Release 2.12. 2016](https://github.com/openlink/structured-data-sniffer/releases/tag/v2.12)
12. [Release 2.13. 2016](https://github.com/openlink/structured-data-sniffer/releases/tag/v2.13)
13. [Release 2.14. 2016](https://github.com/openlink/structured-data-sniffer/releases/tag/v2.14)
14. [Release 2.15. 2017](https://github.com/openlink/structured-data-sniffer/releases/tag/v2.15)
15. [Release 2.3.0. 2015](https://github.com/OpenLinkSoftware/OSDS_extension/releases/tag/v2.3.0)
16. [Release 2.6.0. 2016](https://github.com/OpenLinkSoftware/OSDS_extension/releases/tag/v2.6.0)
17. [Release 2.16.1. 2018](https://github.com/OpenLinkSoftware/OSDS_extension/releases/tag/v2.16.1)
18. [Release 2.16.19. 2019](https://github.com/OpenLinkSoftware/OSDS_extension/releases/tag/2.16.19)
19. [Release 2.16.20. 2019](https://github.com/OpenLinkSoftware/OSDS_extension/releases/tag/v2.16.20)
20. [Release 2.16.21. 2019](https://github.com/OpenLinkSoftware/OSDS_extension/releases/tag/v2.16.21)
21. [Release 2.16.22. 2019](https://github.com/OpenLinkSoftware/OSDS_extension/releases/tag/v2.16.22)
22. [Release 2.16.33. 2019](https://github.com/OpenLinkSoftware/OSDS_extension/releases/tag/v2.16.33)
23. [Release 2.18.3. 2020](https://github.com/OpenLinkSoftware/OSDS_extension/releases/tag/v2.18.3)
24. [Release 2.19.11. 2021](https://github.com/OpenLinkSoftware/OSDS_extension/releases/tag/v2.19.11)
25. [Release 2.21.13. 2022](https://github.com/OpenLinkSoftware/OSDS_extension/releases/tag/2.21.13)
26. [OpenLink Structured Data Sniffer Home Page](https://osds.openlinksw.com/)
27. [(2) OpenLink Structured Data Sniffer (OSDS) (@datasniff) / Twitter](https://mobile.twitter.com/datasniff)