WordPress Importer is the canonical free tool from the wordpress.org team for ingesting WXR exports between sites. It walks the XML, creates posts, terms and attachments, and attempts to remap authors. The footprint it leaves is sparse: _wxr_import_user_* postmeta on remapped users, _wxr_imported_post_id on legacy IDs and an admin-side progress log that does not persist. The native UI confirms success and disappears.

SleekView Charts reads the residual postmeta and joins it back to wp_posts to recover an audit trail. A Number card counts posts imported in the last 30 days using the _wxr_imported_post_id marker. A donut breaks imported rows down by post_type so the team sees the mix of pages, posts and attachments. A bar lists author mappings by remapped user. An area chart tracks imports over time, which is useful when you ingest content from several legacy sources.

Attachments are the usual failure point. The chart layer flags attachment rows where _wp_attached_file is missing or where the source URL did not download, so cleanup is targeted instead of guesswork.

WordPress Importer is rock-solid at the technical job of moving WXR content from site to site. The gap is that it leaves almost no readable history once the run completes, which is awkward for any migration that imports from several sources or runs in passes. The _wxr_imported_post_id and _wxr_import_user_* postmeta are usually treated as internals, but they are exactly the breadcrumbs needed to reconstruct an audit.

Charting them turns a one-off dialog into a saved view, which is what serious editorial migrations need.