Delta View

What a snapshot is

Every time you run a full analysis on a URL, ContentGrapher saves a snapshot of the result: the concept structure, coverage score, writing brief, and boundary classifications at that point in time.

Snapshots are created when Phase 2 completes. Phase 1 — the concept graph and boundary classifications — is free. Phase 2, which produces the writing brief and enables snapshot saving, requires an analysis credit.

If you are not signed in, the before/after comparison is available within the current browser session only. Named snapshots and the full history view require a signed-in account.

How to read ↑, ↓, and →

↑ means the coverage score improved between this analysis and the prior one. ↓ means it declined. → means no change.

The coverage score is a composite measure: part integration quality (how many of your observed concepts are fully explained) and part diagnostic question coverage (how many of ContentGrapher's 8 structural questions your content answers). See Coverage Score for the full definition.

The score is computed at the end of each analysis and stored. The delta view compares the stored score from the latest run against the stored score from the prior run in the same series.

What closing a gap means

In the detailed comparison, gaps close in two ways: a writing brief item moves from open to resolved, or a required concept moves from absent or partially covered to fully present.

The detailed comparison shows three things: which writing brief items are resolved versus still open, which concepts changed coverage status between runs, and how the overall coverage score changed.

Not every revision produces visible progress. Adding a sentence that names a concept without explaining it may improve prose but will not move the concept to fully present. ContentGrapher requires the explanation to be complete, not just the concept to be mentioned.

What if I re-analyze without making changes

If ContentGrapher detects that your content has not changed since the last analysis, the comparison toggle is replaced with a notice instead of a before/after view.

This happens when the content fingerprint — a hash of the extracted page text — matches the previous snapshot. Edit your content before re-analyzing to generate a meaningful comparison.

When to re-analyze

Re-analyze after meaningful content changes: new sections, revised explanations, added examples. Do not re-analyze after formatting-only changes; they will not affect the coverage score or writing brief.

The delta view is most useful after targeted revisions based on the writing guidance. If you addressed the top writing brief items, the comparison will show exactly which gaps closed as a result.

Series and standalone analyses

A series is automatically created when you re-analyze a URL you have analyzed before under the same account. You do not create series manually — they appear when the second analysis of a URL completes.

Standalone analyses (those never re-analyzed) do not have a comparison view. The history view marks these separately so you can see which pages have been tracked over time and which have only been snapshotted once.