Compare AI visibility scans, and tell real change from swing
Proofsource lets you scan again on the same buyer questions and compare any two scans side by side: headline numbers, per-engine before and after, questions newly named, still missing and dropped. A swing check labels each change as normal swing or a real change against your brand's own history, so teams do not celebrate or panic over noise.
| Run | Started | Status |
|---|---|---|
| Scan 15 | Oct 17 | Checking |
| Scan 14 | Oct 3 | Done |
| Scan 13 | Sep 19 | Done |
The headline appears when every answer is checked.
AI visibility scan comparison, in short
The facts, ready to quote.
- Rescan
- Scan again on the same questions, any time
- Compare
- Pick any two scans and see the numbers side by side
- Order
- Drops are shown first
- Swing check
- Each change labeled normal swing or real change
- Live progress
- Real answer counts while checking, no number until done
- Reliability
- Every scan reaches a final state
What is an AI visibility scan comparison?
A scan is one pass of your tracked buyer questions across the engines in your panel. Comparing two scans shows what changed between them: which questions now name you, which still do not, and which you dropped.
The hard part is knowing whether a change is real. AI answers vary between runs, so a few points up or down can be noise. Proofsource checks each change against your brand's own history and labels it normal swing or a real change. While a rescan runs, it shows the real count of answers checked and holds the headline until the scan is final.
How it works
Scan again on the same questions and compare any two scans, with a swing check that says whether a change is real.
Scan again
Rerun your tracked questions on every engine in your panel.
Watch it check
The real answer count shows while the rerun is checking.
Compare
Pick any two scans; drops are listed first.
Check the swing
Each change is tested against your brand's history.
Fix the next five
Open the next five still-missing questions, each with a fix plan.
See it in the product
Screens from the Proofsource app, drawn with sample data for an example brand.
| Metric | Oct 3 | Oct 17 | Check |
|---|---|---|---|
| Named in answers | 31% | 42% | Real change |
| Average position | #2.9 | #2.4 | Real change |
| Cites your site | 15% | 17% | Normal swing |
Claude before10Claude after11- best meeting notes app for sales: dropped on Perplexity
- free ai note taker: dropped on Claude
Every capability, live today
6 shipped capabilities behind AI visibility scan comparison, each in the product now.
Full compare
A before and after view with drops first, per-engine bars, and named, still missing and dropped lists.
Compare any two scans
Pick any two scans and see headline numbers side by side, with the swing check.
Normal swing check
Labels a change as normal swing or a real change against your brand's history.
Real counts while checking
Shows the real answer count while a rerun is checking and no headline until it is done. Every open scan has a deadline, so each one reaches a final state whatever fails.
Fix the next 5
Opens the next five still-missing questions, each with a fix plan card.
Scan again
Start a rerun on the same questions yourself, see its status and recent runs, and open a compare view that sets the new scan beside the earlier one. Each scan asks your tracked questions on every engine in your panel.
Who it is for
Check a launch
Rescan after a launch and see which questions now name you.
Show month-on-month change
Compare this month's scan with last month's, with drops first.
Know what to do next
Fix the next five still-missing questions straight from the comparison.
Avoid false alarms
The swing check tells you when a dip is noise.
Why it matters
Noise flagged
Normal swing is labeled, so you react to real change.
Drops first
The most urgent changes are at the top.
Never a fake number
No headline appears until every answer is checked.
Always finishes
Scans reach a final state even when an engine fails.
Google AI OverviewsGoogle AI Mode
AI visibility scan comparison: Proofsource and other tools
Comparing periods is common in this category; here is how each tool presents change, from their own pages.
| Capability | Proofsource | SE Ranking | Peec AI | Rankscale | Otterly.AI | Scrunch | Semrush |
|---|---|---|---|---|---|---|---|
| Change versus a previous period | YesCompare any two scans | YesChange versus previous period, sorted by biggest moversSource | YesVisibility, sentiment and share of voice compared to prior 7 daysSource | Not listed | Not listed | RelatedPrompt analytics with trends, citations, competitors, rankingsSource | RelatedShare of voice vs sentiment chart against competitors, updated weeklySource |
| Manual rerun | YesScan again any time | Not listed | Not listed | YesManual refresh with sync timestamps per brandSource | Not listed | Not listed | Not listed |
| Before and after per engine | YesPer-engine bars and lists | YesVisibility compared across each AI engineSource | Not listed | Not listed | YesCoverage split by engine with filtersSource | Not listed | Not listed |
| Normal swing versus real change | YesSwing check against your history | Not listed | Not listed | Not listed | Not listed | Not listed | Not listed |
| Winners and losers lists | YesNewly named, still missing and dropped | Not listed | Not listed | Not listed | RelatedTop winners and losers, starred citationsSource | Not listed | Not listed |
| Full answer behind each number | YesEvery scan stores the answers behind its numbers | YesAny number opens the unedited AI answer behind itSource | Not listed | Not listed | YesCSV or JSON of raw answersSource | YesShows the full AI responses behind each metricSource | Not listed |
| Next steps from the comparison | YesFix the next 5 still-missing questions, each with a fix plan | RelatedTopics where competitors lead, ranked by gap sizeSource | RelatedRanked opportunities with evidence, fact-checking, custom actions; approval requiredSource | RelatedActionable recommendations (beta)Source | RelatedNext steps from brand report data; personalized since April 2026Source | Not listed | Not listed |
Where each of them shines
Period-over-period change sorted by the biggest movers.
Visibility, sentiment and share of voice compared with the prior seven days. Compare in full
Manual refresh with sync timestamps per brand.
A citations report with top winners and losers. Compare in full
Alerts on rank and citation changes between periods. Compare in full
A share-of-voice chart against competitors, updated weekly. Compare in full
Questions about AI visibility scan comparison
What does Scan again do?
It reruns your tracked buyer questions on every engine in your panel and compares the result with the scan before.
Can I compare any two scans?
Yes. Pick any two scans to see headline numbers side by side, with the swing check.
What is the normal swing check?
AI answers vary between runs. The check compares a change against your brand's own history and labels it normal swing or a real change.
Why is there no number while the scan is running?
A partial number can mislead. Proofsource shows the real count of answers checked and holds the headline until the scan is final.
What happens if an engine fails during a scan?
Every scan has a deadline and reaches a final state, so it never sits stuck.
Which engines are compared?
Up to 10 AI engines depending on your plan: ChatGPT, Perplexity, Claude, Google AI Overviews, Google AI Mode, Gemini, Microsoft Copilot, Grok, DeepSeek and Meta AI.
How is this different from SE Ranking's period comparison?
SE Ranking offers clear period-over-period movers. Proofsource adds a swing check against your history and turns still-missing questions into fix plans.
Keep exploring
Try it on your own brand.
Proofsource is live: scan your brand and see AI visibility scan comparison at work with your own answers, competitors and sources.
Google AI OverviewsGoogle AI Mode