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Your workspace at a glance. Pick a tool to get started.
Bulk prospect analysis
From a messy prospect list
to a clear next step.
Upload your list, choose your checks, and review the evidence in one place. Find comment-link opportunities, compare signals, and focus your manual review.
Backlink Prospect Checker
Find the pages in your list that can actually take a comment link.
- Add your listUpload a CSV or Excel file, or paste URLs.
- Choose your checksQuick covers what most people need.
- Take the report with youCopy, CSV, Excel or Google Sheets.
Your credits
Backlink Verifier
Check the pages where your links were built and find every link to your client.
- Enter the client domainEvery link to it and its subdomains is found.
- Add the source pagesPaste them, or upload a CSV or Excel file.
- See what is liveTarget URL, anchor text and link type for every link.
Backlink Prospect Checker
Checks whether the exact pages in your list can actually take a comment link, and, if you ask for it, what each site and page is about.
Enter the client domain
The site your links should point to. Links to its www. and other subdomains count too.
No https:// or page path needed.
Add your backlink prospect list
Upload a CSV or Excel file, or paste URLs from Ahrefs, Semrush, a vendor, or your own link building list.
One URL per line. We add https:// if you leave it off.
Choose what to check
Unticked checks genuinely do not run. That is what keeps a scan fast, and what keeps the result honest.
Tick anything you also want in the results and the export. A scan runs up to 12 checks in total, counting the five you already get. The price per URL steps up at 6 checks and again at 9.
Scan summary
- URLs in list
- 0
- Price per URL
- 1
- Balance after
- –
Analysing your prospects
- 0comments available
- 0follow opportunities
- 0need review
- 0unable to verify
Keep this tab open until the scan finishes. You can move around the app - it keeps running.
Report
Scan
Your prospect list is ready
Every analysed URL, strongest first.
Both buttons take whatever the table below is showing, ready to paste straight into Google Sheets or Excel from whichever cell you pick.
Results
Every page you checked, strongest first.
No rows match that filter.
The table and standard exports use the columns selected for this scan. Copy and export follow the active table filters. Export the report before replacing it or signing out.
Saved reports
Report History
Usage & Credits
Everything about your credit balance, in one place.
How your credits work
Pricing
One plan today, and it is free. Here is exactly what it includes.
Everything in WebDiagnosis today, with no card and no trial timer.
For steady outreach, with a larger monthly allowance.
Allowances and features are still being decided. Nothing is listed here yet because a number on this page is a promise, and this one is not ready to make.
For agencies clearing thousands of prospects a week.
Allowances and features are still being decided. Nothing is listed here yet because a number on this page is a promise, and this one is not ready to make.
Paid plans are not live yet
WebDiagnosis is not taking payments. The two columns above are what paid plans are expected to cover as the product grows into verification and monitoring, not an offer: no card can be added, and nothing on your account can change. You will see final prices and allowances here before any of it starts.
Preferences
Your account, and what happens to your scan data.
Account
New tools and meaningful changes. No more than a few times a year, and you can turn this off whenever you like.
Email about your own account or a scan you started is always sent, and is never affected by the switch above.
Data & privacy
Your latest report stays on your account until you start another scan. It is also removed when you sign out, or whenever you delete it below.
Removes every scan on this account straight away. Your credits are not affected.
Help
How to run a check, how to read the results, and the questions people ask most.
Getting started
Five steps, about a minute of your time plus the scan itself.
- Add your prospect list Upload a CSV or Excel file, or paste URLs one per line. Ahrefs and Semrush exports, vendor lists and your own spreadsheets all work.
- Choose Quick or Detailed Quick Check answers what most people need. Detailed adds anything else you tick. Unticked checks genuinely do not run, which is what keeps a scan fast.
- Run the check Roughly a couple of seconds per page. You can close the tab; the scan keeps running and the counters pick up where they were.
- Review the strongest prospects Results arrive sorted best first, so the pages worth your team's time are at the top rather than somewhere in row 60.
- Export the cleaned list Copy, CSV, Excel or straight into a new Google Sheet in your own Drive.
Understanding your results
What each column is actually telling you.
Whether a real, open comment form was found on that exact page. Not on the domain, and not on the home page: the page you gave us.
Follow, nofollow, UGC or sponsored, read from links already sitting in that page's comments rather than assumed from the platform.
High means we measured it from five or more existing comment links on that page. Low means we are reporting a platform default, not something we saw. Unknown means neither. This is the column that tells you how much to trust the one beside it.
Domain strength, as supporting information only. It cannot tell you whether a page accepts links, which is why it never decides the verdict on its own.
How spammed the existing comments look. A page can be wide open and still be somewhere you would rather not appear.
Use, Review or Skip, with the reason attached to every row of your export.
We could not read the page well enough to answer. That is not a failure and it is not a no; it means the question is still open, so we say so instead of guessing.
Questions people ask
Quick Check costs 1 credit per URL. Custom Check costs 2 credits for 6–8 total fields or 3 for 9–12. The cost appears before you start. Unprocessed URLs are refunded; an attempted page may use credits even if it returns an error.
Either it did not load, commenting is closed, or there is nowhere a link could go. The reason is on every row of your export.
No. We read public pages only, and never post, log in, or bypass a CAPTCHA.
It is still there. Your latest report stays until you start another scan, so open the Backlink Prospect Checker and it comes back. Starting a new scan replaces it, and signing out removes it.
Quick Check takes up to 100 URLs. Detailed Check takes up to 50, because it does more work per page. The Backlink Verifier takes up to 100 pages.
A page it could not read: a timeout, a bot check, a refused request, a server error, or a page that builds its content in the browser. It never reports those as a missing link. Not Found means the page was read, or is gone (404 or 410), and has no link to your client domain.
Start checking your backlink list
Sign in so we can keep your credits on your account and your results private to you.
Continue with Google- 500 welcome credits, and one credit checks one URL
- Tops up to 100 credits every day, free
- No card and no trial timer
- Your latest report waits for you, and is never kept as history
Development sign-in. Google is not configured on this machine, so this stand-in creates a normal local account for testing.
We use your Google name and email only to create and sign you into your WebDiagnosis account. We cannot access Gmail, Drive, Contacts or Calendar.
Your list stays in this browser until you sign in. We do not store it.
One permission, just for this sheet
WebDiagnosis only needs permission to create and update the Google Sheet you export. It cannot read Gmail or browse your existing Drive files.
- Create one new spreadsheet in your Drive
- Write your results into that spreadsheet
- Read Gmail, or anything else in your Google account
- Open, list or change files it did not create
Google will call this https://www.googleapis.com/auth/drive.file
Prefer not to? Copy complete report, Excel and CSV need no permission at all.