Scan your site.

The crawl loads up to 10 pages or 500 KB of rendered DOM, whichever comes first, and takes a few minutes. The report sits at an unguessable link for about 24 hours; a rescan of the same domain today returns that report. Bookmark the status page (this browser also remembers the last one). Publishing to the public queue is a later choice. Failed scans can be retried the same day. Non-public and internal addresses are refused. See a finished report: sample.