The ShareScan blog
Practical fixes, publishing workflows and research for the teams behind product and campaign pages.
Latest article
In a February 2026 sample, 70 domains declared an OG image on the homepage while an HTTP-200 product page lacked it. See the paired data and a practical coverage check.
23 articles
Open Graph · Technical SEO
What 72,716 product checks from February 2026 reveal about missing metadata, overlapping signals and the limits of automated preview checks. Includes aggregate data.
Open Graph · Release QA
Trace a missing Next.js preview image with a runnable, version-pinned example. Compare nested metadata, complete HTTP responses and file-based image behavior.
Open Graph · Monitoring
Build a URL inventory, check representative templates, expand the audit and verify the fixes. Follow a controlled 12-page example with downloadable results.
Open Graph · Social Preview
We chased a Facebook/Messenger preview bug through Open Graph tags, image URLs, robots.txt, and range requests. The fix was hiding in Cache-Control.
Open Graph · Social Preview
Changed your og:image but Slack, LinkedIn, or another channel still shows the old card? Use this practical cache and crawler checklist.
Slack · Social Preview
Separate Slack message settings from missing metadata, inaccessible images and stale cards. Use the exact shared URL and test each request in order.
Twitter Cards · Social Preview
A practical checklist for testing X and Twitter Card metadata, fixing missing images, checking Open Graph fallbacks, and avoiding stale preview cards.
Social Preview · Open Graph
A practical debugging flow for missing preview images, stale titles, crawler blocks, redirects, and Open Graph or X card metadata before a link goes live.
Open Graph · Monitoring
When is a manual preview check enough? A practical look at broken image URLs, shared templates, and the pages worth checking again after a deploy.
Open Graph · Twitter Cards
Open Graph and Twitter Card metadata overlap, but platforms do not read them equally. Here is what matters for reliable previews.
Release QA · Monitoring
Metadata regressions are deploy regressions. This workflow catches broken Open Graph, canonical, and preview fields before they reach customers.
Open Graph · Social Preview
A practical guide to the image dimensions, file weight, crop-safe layouts, and crawler access mistakes that make social cards unreliable.
Slack · CMS
Follow a renamed CMS image field through the HTML response, image request and correction. Then trigger a signed check when the public page is ready.
LinkedIn · Social Preview
Use the exact shared URL, its HTML response, the image request and LinkedIn Post Inspector to find where a preview goes wrong.
Technical SEO · Open Graph
Use the right Open Graph image size, aspect ratio, format, and crawler checks so Slack, LinkedIn, X, and other previews can render clean cards.
Technical SEO · Open Graph
Large preview images can make Slack, LinkedIn, X, and other crawlers give up before they build a card. Here is how to resize, compress, and test them.
Technical SEO · Metadata Monitoring
How ecommerce teams catch metadata regressions before product pages lose social preview images, titles, canonicals, or search visibility.
Technical SEO
Find the failing layer: missing HTML tags, an inaccessible image, the wrong asset or a stale platform card. Follow a tested example from 403 to a working image.
Technical SEO
The February 2026 benchmark found missing og:image values in 18.05% of sampled product-page checks. Here is how to investigate the affected template and image response.
Technical SEO
A new benchmark across 647 retail ecommerce domains shows that 27.7% exhibit structural preview risk and 18.05% of product pages lack an og:image tag.
Technical SEO · Website QA
Compare the HTML response with the rendered page to find metadata that depends on JavaScript. Then check image access, route behavior and platform caching.
Metadata Monitoring · Technical SEO
Metadata regressions don’t crash your site — they quietly reduce visibility, break social previews, and impact search performance after deploys. Here are five of the most common issues we see in production, and how to prevent them.
Product · Company
Websites rarely fail loudly — but metadata, Open Graph tags, and canonicals break more often than teams realize. ShareScan helps you catch these silent regressions after deploy, with continuous scans and real-time Slack alerts.