Review monthly new and lost backlink counts

Provide one bare domain without https://, www. or a page path, plus startDate and endDate in YYYY-MM-DD format. The domain must be 3–253 characters. Start on or after 2019-01-30; end on or after the start and no later than today. Both dates are required, with no default interval.

The supplier uses the supplied start date as a threshold. An entry appearing in its index after that date is considered new. An entry not found after that date, but previously present, is considered lost. These classifications do not independently prove when a physical link was created or permanently removed, or why it changed; they are not defined as subtraction of two consecutive monthly totals.

The supplier groups it into full calendar months, labelled with the month's last day. For example, March 23 through May 13 corresponds to March, April and May buckets. Keep that grouping separate from the start-date classification threshold. The labels do not identify exact link-event cutoffs or establish that the current month is complete. Daily and weekly grouping are not inputs.

Read them as separate measures. Link counts describe backlinks, while the two source measures describe referring domains and referring main domains. A source can contribute multiple links, and the counts do not establish a conversion ratio or a shared deduplication rule. Adding different units together, or adding monthly counts into a unique all-time total, would require evidence this result does not supply.

No. It is the supplier's UTC data-storage timestamp, with monthly records using last-day-of-month labels. It is not the exact time of an appearance or removal, a monthly sum, or the Tool execution time. The reported range start and end describe the request, and do not promise a fresh crawl through the end date.

Preserve them as returned. The supplier can report zero for a period with no data, so zero does not confirm that no links changed. A null value or absent monthly record remains unknown. Do not invent missing months or convert unknown values to zero.

This Tool returns six aggregate counters, not the changed source or destination URLs. It does not determine causes, recover links or provide continuous alerts. Use the counts to identify questions for a separate investigation rather than infer the specific links or their current state.