CohesionStack Lab
Check and fix how your links look when shared on LinkedIn, X, Slack and WhatsApp. Preview one page or export Open Graph data for up to ten.
Check and fix how your links look when shared on LinkedIn, X, Slack and WhatsApp. Preview one page or export Open Graph data for up to ten.
This page is designed to help you find out whether CohesionStack Lab is good and if it is the right choice for you.
CohesionStack Lab shows you how a page will look when someone shares it, before you publish it, and helps you fix what's wrong. Paste a URL and the Link Preview draws approximate share cards for LinkedIn, Facebook, X, Slack and WhatsApp from the page's live Open Graph and Twitter Card tags. It reads the tags as they are right now rather than whatever a platform has cached, so you can see whether the image, title and description will come through the way you intended.
When you need to check more than one page, the Metadata Packer runs the same extraction for up to ten URLs at once. It pulls Open Graph, Twitter Card and JSON-LD data and exports it as a CSV, along with a ZIP of each page's images and favicons. A strict mode reports only the tags that are actually on the page, and a relaxed mode fills gaps with documented fallbacks, so you can see both what platforms will find and what can be recovered. A companion guide lists the recommended Open Graph image sizes for each platform.
The Lab is built for marketers, developers and anyone who publishes pages that get shared. It's free, runs in the browser and needs no account. It's made by CohesionStack, the principal-led technology consulting practice of Rahul Sawhney.
Listed in
Link Preview
Approximate share cards for LinkedIn, Facebook, X, Slack and WhatsApp, read from a page's live Open Graph and Twitter Card tags
Bulk extraction
Up to 10 URLs at once with Metadata Packer
Export
CSV of Open Graph, Twitter Card and JSON-LD metadata, plus a ZIP of page images and favicons
Strict and relaxed modes
Strict shows only the tags on the page; relaxed fills gaps with standard fallbacks and flags each inferred value
Open Graph tag checker
Checks the Open Graph tags on a page
Twitter Card checker
Checks the Twitter Card tags on a page
No Signup Required
Free to use, no account required
CohesionStack Lab reads a page's Open Graph and Twitter Card tags as they are right now, not from a platform's cache, and shows side-by-side previews for LinkedIn, Facebook, X, Slack and WhatsApp in one place. When you need more than a preview, Metadata Packer pulls the same data from up to ten URLs at once and hands you a CSV plus a ZIP of each page's images and favicons. It's free and doesn't need an account.
Most preview tools check one URL at a time and stop at a picture of the card. CohesionStack Lab also does batch work: you can audit ten pages in one go and export the metadata and image assets, which is useful before a launch or when you're handing pages off to someone else. A strict mode shows exactly what's on the page, and a relaxed mode fills gaps with standard fallbacks and flags every value it inferred, so you can see both what platforms will show and what's missing.
Marketers, founders and developers who want their shared links to look right before a launch, campaign or post, and agencies or consultants who need to audit Open Graph metadata across a batch of client pages without installing anything.
CohesionStack is a principal-led technology consulting practice run by Rahul Sawhney, who spent his career building engineering teams at companies including Amazon, The Knot Worldwide and Citrix. The Lab is where he builds small, practical tools for everyday problems teams run into. Link previews that look fine in one app and broken in another kept coming up, and each platform's own debugger only shows its own card, so he built one place to check them all.
The browser front end calls a small backend: an AWS Lambda running a Java container behind Amazon API Gateway, deployed with AWS CDK. The Lambda fetches and parses each page, and the preview images load in your browser straight from the site's own image host.
All marketers, developers and anyone who publishes pages that get shared. The app has no sign up requirements.
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Check the traffic stats of CohesionStack Lab on SimilarWeb. The key metrics to look for are: monthly visits, average visit duration, pages per visit, and traffic by country. Moreoever, check the traffic sources. For example "Direct" traffic is a good sign.
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Check the "Domain Authority" of CohesionStack Lab on MOZ. A website's domain authority (DA) is a search engine ranking score that predicts how well a website will rank on search engine result pages (SERPs). It is based on a 100-point logarithmic scale, with higher scores corresponding to a greater likelihood of ranking. This is another useful metric to check if a website is good.
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