A username verification checklist helps you decide whether two social profiles belong together. Record the exact URLs, compare the information each profile shows, check the links between them, and write down any contradictions before reaching a conclusion. A matching username alone is not proof of a shared owner.
You can do this work with an OSINTsearch Free account. Free results include profile information, former usernames and account history where available, giving you material to compare manually. Paid in-app cross-referencing helps you follow discoveries further. The checklist below gives you a way to record what supports each connection, whichever plan you use.
Start with a question you can answer
Keep each review focused on a pair of profiles. “Does this photo-sharing account belong with this portfolio?” is easier to assess than “Who owns all these accounts?” You can build a wider set of related profiles once you have checked the individual connections.
Choose a reference profile you have a reason to trust, such as your own account or a profile linked from the person's established website. Write down why it is your starting point. If you have only a handle, label the first profile as a candidate too.
For instructions on finding the initial results, see our username search guide. This worksheet begins once you have profiles to compare.
Copy this username verification worksheet
Use one copy for each pair. Paste it into your research notes or a spreadsheet, and keep the source beside the observation.
| Check | What to record | What to ask |
|---|---|---|
| Profile URLs | Full URL and platform for both accounts | Am I reviewing the intended profile on each site? |
| Date checked | When you opened each source | Could the two observations describe different periods? |
| Username and display name | Exact spelling from both profiles | Is the match distinctive, common, or only approximate? |
| Bio and website | Relevant text and complete linked URLs | Do the profiles describe the same work or link to the same personal site? |
| Links between profiles | Where the link appears and where it leads | Does a profile link directly to the other account? Is there a link back? |
| Former usernames and history | Available names, dates and the source for each | Is there evidence of continuity between the old and current account? |
| Contradictions | Details that disagree, plus their dates | Is there a reasonable explanation, or does the connection remain unsupported? |
| Assessment and next check | Your conclusion and the evidence still needed | What would change this assessment? |
Leave missing fields blank or mark them “not available.” An empty biography does not count as agreement or disagreement. Keeping that distinction makes the worksheet useful when one profile has much more detail than another.
Check the evidence behind each similarity
Record the exact match
Copy the handle as displayed, including punctuation and digits. Keep the display name in a separate field. Two accounts can use the same display name while having different usernames, and a similar-looking spelling can send you to the wrong profile.
Write specific observations: “Both bios link to the same portfolio URL” is useful. “Looks like the same person” leaves the next reader with nothing to check.
Check where each link comes from
Open the destination and compare the full URL with the account you are reviewing. Record whether the link is in the person's bio, on their own website, or somewhere else on the page. A website's footer link to its own social account does not connect the profile holder to that account.
Check for a link back when possible. If two profiles link to each other, record both directions separately. A one-way link is still useful, but it describes a different relationship: one page is pointing at another. Your notes should preserve that detail.
Compare history in context
Former usernames can explain why an old link uses a different handle from the current profile. Dates help you put those observations in order. Record what a date actually describes, such as an account creation date, a displayed rename date or the day you checked a page.
Avoid assuming an old handle still belongs to its previous owner. For example, GitHub states that an old username becomes available for someone else to claim after a rename. Check the current destination of an old link and look for account continuity. Our former username guide explains how to review the available history.
Give contradictions their own space
A matching picture and a matching name should not make a conflicting website disappear from your notes. Record the disagreement, then check its context. A changed location may reflect a move; an old job title may simply be out of date. Neither explanation should become a fact without supporting information.
Also check whether several similarities are really separate observations. A photograph, biography and link copied together from one page do not provide three independent confirmations. Look for evidence from the other account or an established website before treating the connection as settled.
Write an assessment another person can check
Finish with a short sentence that names the evidence. These are illustrative wording examples, not findings from actual searches:
- Supported connection: “The portfolio links to this exact social profile, and the social profile links back to the portfolio.”
- Possible connection: “The profiles share a distinctive username and project name, but neither links to the other. Check the project's published account links.”
- Keep separate: “The profiles use the same handle but link to different portfolios. No connection was established.”
These labels describe your review notes. They are not an OSINTsearch score or an automated verdict. Keep the original URLs and observations so the assessment can be revisited if the profiles change.
Use Free results to build your worksheet
Start with OSINTsearch username search, open the relevant results and use the visible details to fill in your notes. Free provides useful material for this comparison, including former usernames and account history where available. You can also export available results as CSV, JSON or PDF to keep alongside the worksheet.
Paid in-app cross-referencing adds a way to follow discoveries into further searches. It can extend your research, while the same evidence checks help you assess the profiles you find. See what Free and paid plans include and the current plans when that next step becomes useful.
The worksheet is complete when you can state which profiles you connected, why you connected them, and which questions remain open. Start with one pair and leave a record you can return to.
