A common SEO accident is that the business team is “optimal” and the down page can be opened, but the search performance has deteriorated. Putting the deviation “Why is the BreadcrumbList mark wrong” is the common root cause of the common error that comes from position repetition, the loss of antem, and the order does not correspond to visible breadcrumbs. The surface is normal and does not mean that the search engine system is receiving the correct signal.
Revert to the principle: The list items should be output in the true navigation sequence from the superior to the current page. Compare the landing page, captured HTML, server status and on-site links seen by the browser, usually finding reasons faster than repeated changes to keywords.
The restoration scheme is for the CMS to generate ListItem by a tree, to provide a position, a name and atem, to process the last level by document requirements and to avoid placing the filter parameters at a level. Prioritize the restoration of high flow, high transformation and important extra-chain URLs, and then process the long end pages; each batch retains the change label and rerollable version.
Test multiple templates and languages to check if the cache after re-column is synchronized. If changes are seen only on a single day, do not rush to declare success because retakes, index updates and needs fluctuations take different time.
A follow-up flash drive must be clear about the fact that a manual copy of JSON to each page is easy to leave an old link, which also leads to inconsistent names and interfaces. Translating the cause of the accident into automatic item-by-line and manual sampling before release is more reliable than relying on someone to remember lessons.
At the maintenance level, “structured data for bread crumbs” can be added to the quarterly spot-check: randomly selects old and new landing pages, checking that configurations, text, links, and data are still consistent with current operations. Search rules and product information will change, and the correct landing page will need to be clearly updated.
In order to prevent the conclusion from remaining in the report, it is recommended that the list items and multi-template tests be issued as acceptances and that the anomaly be judged by whom and how long it will be repaired. This way the new landing page follows the same standard, and the old landing page can be detected in time after the template changes.