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The data before June is missing in the report, should I check statistics first or check collection first?

📅 2026-11-01 👁️ 0

The data before June is missing in the report, check statistics or collection first - check the report side first. Data defects on the platform side are not uncommon, there was an issue confirmed in the October webmaster monthly report: the index report is missing old data before June. The characteristic of this kind of problem is that 'a section of history data disappears in one go, and recent data is normal', and the collection anomalies on the site side are usually manifested as new pages not being accessible, and the coverage range gradually shrinking, which are different in form. Making changes to the site when seeing a break in old data is the easiest way to do nothing in this kind of troubleshooting.

First exclude the report side fault

The first step is to double-check, view again with the same caliber: switch to another report module to see if the corresponding data is still there, switch to a different device or another account to confirm that it is not caused by the interface filtering conditions, and then pull the date range back to an earlier time to see if the breakpoint falls neatly on the first day of a month or is scattered. When these three conditions - neat breakpoints, consistency across modules, and affecting only historical segments - are all met, it is basically possible to judge that it is a problem on the report side.

The second step is to check if there is any public explanation. The webmaster's monthly report and the official help page will record such known issues, such as entries such as missing old data in index reports, as well as new report functions launched at the same time. Don't change the site after seeing the announcement: wait for the platform to repair and data to be supplemented. Any 'compensation actions' during the process will make the subsequent review distorted.

The third step is to make collateral records. In addition to reports, the background data of the site itself, the crawling logs, and the interface readings can be used as a reference. Write a record of the start and end dates of the broken window and the observed phenomena for easy judgment after repair whether it is really supplemented.

Then check the inclusion and push of the site side.

Only when the report side is excluded, the site investigation is entered. The order is still from outside to inside: first check if the site map is still accessible and if the number matches the current content volume, the site map should be updated automatically with the addition or deletion of content, and the old maps manually maintained are most likely to be distorted after the revision; then check if the active push channel is still working, when new content is not pushed, the delay in collection will be manifested as 'recent page absence', which is completely opposite to the 'old data disappearance'.

Continue to check the robots configuration and page accessibility. If historical pages are batched to be unscrapable or return an abnormal status, the old data in the reports will indeed decrease. This belongs to the site-side reason and needs to be checked item by item by address instead of rolling back in bulk.

Generative presentation data is different from traditional data in tables.

The newly launched generative presentation report is not the same as the traditional display and click report, and the口径 is also different: the former counts the occurrence of content in the generative answer feature, and the sample window and start date are usually later than the traditional report. Placing both types of data in the same trend chart for comparison can easily lead to the misjudgment that 'old data is missing' - in fact, the newly generated report does not have such a long history. When investigating, first confirm which table you are looking at, and then check the data start and end range.

The method of filing comparison.

Make the verification into a fixed action, which is more convenient than checking it all at once. Export a report reading archive weekly or monthly, with fixed fields; at the same time, call the list and detail interfaces through the interface document, and store the number of articles and the reading of related configuration items in the background into a snapshot of the same day, so that the problem can be identified on the platform side or the site side by comparing the two sides. The on-site data obtained from the API call is not affected by external report failures and is a natural control surface. When an abnormal window occurs, add a description to the archive: phenomenon, start and end time, possible exclusions, and items to be observed. Whether to fill in after repair can be known at a glance.

Common questions

Whether the old data is broken, should we submit the site map again for补救?Don't do it first. If the breakpoint is neat and only affects the historical section, it belongs to the report side failure, and re-submission will not change the result, but will leave meaningless fluctuations in the crawling log.

How to confirm that it is a platform failure and not that I have changed it wrong?If all three criteria are met, it can be highly suspected that it is on the platform side: the breakpoint is on the whole month boundary, multiple modules cannot see this period at the same time, and there are open explanations or similar feedback from others at the same time. If one is missing, consider the site side.

Is it normal that the new report cannot see the data from half a year ago?Normal. The newly generated report has a start date, the historical segment does not exist, and it cannot be compared with the traditional report on the same time axis.

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