Opsis OSINT Review: Username, Email and Domain Search

Opsis OSINT is a browser-based lookup service that checks a username, email address or domain against hundreds of online sources and returns the public profiles and records it finds. This review is based on the vendor's website, terms, privacy policy and FAQ, checked on 10 October 2026; we have not run searches on it.

Email your brief Username investigations

Usernames, emails, domains
700+ sources claimed
From $14.99 a month
API on the top plan

Short answer

Opsis OSINT is a subscription web tool from Opsis LLC that runs username, email and domain lookups across what it says are 700+ sources, showing public profile details such as avatars, bios and join dates. It targets investigators, security teams and researchers. Plans start at $14.99 a month for 25 searches; the Pro plan adds API access.

What Is Opsis OSINT?

A hosted selector-lookup tool: you enter one identifier, and it queries many sites and services in real time to show where that identifier appears.

Opsis describes itself as an OSINT search platform for investigators, security teams and researchers (Opsis). It accepts three kinds of input: a username, an email address or a domain. It does not list phone-number search. The service runs in the browser with no installation and is operated by Opsis LLC, a Minnesota limited liability company (Terms).

Tools of this kind automate a step every investigator does by hand: checking whether an identifier exists on other platforms. The value is speed and breadth; the risk is treating a match as an identity. Opsis itself says matches are leads, not proof of identity. For more lookup tools grouped by task, see our OSINT tools catalog.

The name is shared with unrelated companies, so searches for "opsis osint" may also surface other businesses. This review covers the product at useopsis.com.

Key Features

Username, email and domain modules, a verified-hit filter, deep search on paid tiers, saved profiles and an API on the top plan.

Username

400+ platform checks

Searches social, developer, gaming and other sites for a handle and returns profile details where the source exposes them.

330+ enrichment modules

Checks which services an email address appears to be associated with.

Domain

WHOIS and DNS

WHOIS, DNS and reverse WHOIS lookups, plus document metadata analysis for domains on premium tiers when files are accessible.

Quality

Verified-hit filter

The vendor says a match needs real profile signals, not just a page that loads, to reduce false positives.

Workflow

Saved profiles

Findings can be saved to Profiles, which persist until you delete them, while raw results are purged automatically.

API

API access

Programmatic searches are included on the Pro plan, for adding lookups to your own tools.

Opsis Pricing and Plans

Three monthly plans from $14.99 to $49.99, priced by number of searches; there is no free plan, only free preview pages.

Plan	Price	Searches a month	Includes
Starter	$14.99/month	25	Full module library, username, email and domain search
Basic	$24.99/month	75	Starter plus premium deep search and priority support
Pro	$49.99/month	150	Basic plus API access

Prices are in US dollars as published on the vendor's site, checked 10 October 2026 (Opsis pricing). Credits reset monthly and do not roll over, and the terms say unused credits and partial periods are not refunded, subject to statutory consumer rights (Terms). A third-party directory lists lower search allowances for the same prices (CyberSecTools), so rely on the vendor page.

How Opsis Handles Search Data

Results are purged within hours, search logs are kept for 90 days, and queries are passed to the third-party sources being checked.

Results. The FAQ says search results are purged automatically within hours; saved Profiles stay until you delete them (FAQ).
Search logs. Queries, search type, timestamps and IP addresses are logged and purged after 90 days (Privacy Policy).
Third parties. The privacy policy says queries are sent to the sources being checked, such as GitHub, Gravatar and public breach indexes, but not to advertising platforms. Ad platforms receive hashed account data and the search type.
People who are searched. Opsis offers a data-removal (suppression) page for people who want to limit results about themselves (Suppression).

For investigations involving EU or UK residents, remember that the GDPR applies to your own processing of the results, whatever the tool's policy says.

Legal Limits: What Opsis OSINT Must Not Be Used For

Opsis is not a consumer reporting agency, so its results cannot be used for hiring, tenancy, credit or insurance decisions, and stalking or doxxing is prohibited.

The terms state that Opsis is not a consumer reporting agency and prohibit using it to determine eligibility for employment, promotion or retention, for tenant screening, or for credit and insurance decisions (Terms). In the US, employment background checks fall under the Fair Credit Reporting Act, with consent and adverse-action duties (FTC). The terms also prohibit stalking, harassment, doxxing with intent to harm, bulk extraction, reselling results and facilitating fraud, and allow the company to suspend accounts and report suspected illegal activity.

Permitted uses listed include licensed private investigation, corporate due diligence, journalism and academic research. Even then, public profile data is personal data: regulators have said that publicly accessible personal data is still protected against scraping and misuse (joint statement on data scraping). Document your purpose before you search.

Who Opsis Suits, and Who It Does Not

It suits analysts who need fast, low-cost selector checks; it does not suit employment screening, phone lookups or anyone who needs confirmed identities.

Good fit: fraud and trust-and-safety analysts, licensed investigators, journalists and security teams who need to pivot quickly from a handle or email to other accounts, at a modest monthly cost and without installing anything.

Poor fit: HR and recruiting teams (barred by the terms for hiring decisions), anyone who needs phone-number lookups, and cases where the result must stand up as evidence that an account belongs to a specific person.

OSINT Limitations and Risks

A match shows that an identifier exists somewhere, not who controls it; a miss proves nothing.

Same handle, different person. Common usernames and recycled emails produce matches that belong to other people. The terms warn that results may concern different people with similar identifiers.
Absence is not evidence. The vendor notes that private, unavailable or rate-limited sources can return nothing even when an account exists.
No accuracy guarantee. The terms say Opsis does not generate, verify or guarantee the information returned and advise independent verification (Terms).
Point-in-time. Real-time checks show what exists today; deleted accounts and past usernames need archive work.
Search budget. At 25 to 150 searches a month, broad pivoting across many identifiers uses credits quickly.

Opsis Alternatives for Username and Email OSINT

Free open-source tools cover username and email checks if you can run them; commercial services add breadth, phone lookups and support.

OSINT Industries: a commercial lookup platform for emails, phone numbers and usernames.
Epieos: email and phone lookup with free and paid options.
WhatsMyName: an open-source username enumeration project with a web front end.
Sherlock and Maigret: open-source command-line username search tools.
Holehe: an open-source tool that checks whether an email is registered on a range of sites.

Need the Answer, Not the Tool?

If you need to know who is behind an account, not just where a handle appears, an analyst-led investigation is the better fit.

Lookups list candidate accounts; an investigation tests whether they belong to the same person and what that means for your decision. Our username investigations and email address investigations do that work with documented sources, and website and domain investigations cover who runs a site. For lawful, FCRA-compliant hiring checks, use our background checks instead of a lookup tool. Focused checks start from 10 business days, with a senior analyst review before reporting. Compare our other OSINT services.

Get a Verified Answer About an Account

Send us the username, email or domain, the question and the decision it supports. We confirm the lawful purpose and scope in writing and give you a fixed quote.

Email your brief Email address investigations

Opsis OSINT FAQ

I came across Opsis OSINT while looking for a username search tool — is it a real company, and what exactly do I get for the cheapest plan?

Yes. Opsis is run by Opsis LLC, a Minnesota limited liability company, at useopsis.com (Terms). The Starter plan, at $14.99 a month when checked on 10 October 2026, includes 25 searches across the full module library for usernames, email addresses and domains. Credits reset monthly and do not roll over. Premium deep search starts on the $24.99 Basic plan, and API access requires the $49.99 Pro plan.

Our HR team wants to run job candidates' emails through Opsis to see their other accounts before we make an offer — is that allowed?

No. Opsis's terms say it is not a consumer reporting agency and prohibit using it to determine eligibility for employment, promotion or retention (Terms). In the US, background checks used for hiring fall under the Fair Credit Reporting Act, which requires disclosure, written consent and adverse-action steps. Use an FCRA-compliant screening provider, or an OSINT background check run on that basis, and limit social media review to job-relevant, lawful criteria.

If Opsis finds a matching username on ten sites, can I assume all those accounts belong to the person I'm investigating?

No. A match shows that the handle exists on those sites, not that one person controls them. Common usernames are reused by unrelated people, and Opsis's own terms warn that results may concern different people with similar identifiers. Compare profile photos, bios, creation dates, linked accounts and writing style, and record your reasoning. Treat each account as a lead until independent evidence ties it to your subject.

I'm worried about privacy — if I search someone's email on Opsis, who else sees that query, and how long does Opsis keep it?

According to the privacy policy, the query goes to the third-party sources being checked, such as GitHub, Gravatar and public breach indexes, but not to advertising platforms (Privacy Policy). Search logs, including the query, timestamp and your IP address, are kept for 90 days. Results themselves are purged within hours unless you save them to a Profile. Avoid running highly sensitive selectors through any hosted lookup tool without a clear purpose.

We're a small fraud team on a tight budget — should we pay for Opsis or just use free open-source tools like Sherlock and Holehe?

It depends on volume and skills. Free tools such as Sherlock, Maigret and Holehe cover username and email checks if someone on your team can run command-line tools and handle their maintenance. Opsis adds a browser interface, a verified-hit filter and saved profiles for a monthly fee, but caps searches at 25 to 150 a month. Many teams use both: free tools for breadth, a paid tool for convenience, and analyst time for verification.

Someone may have searched my email on Opsis — can I ask the company to remove or limit results about me?

Yes, there is a route. Opsis links a data-removal (suppression) page from its site footer (Suppression), and its privacy policy describes GDPR and CCPA rights handled by email within 30 days. Bear in mind that Opsis queries other public sources in real time, so removing data at the original platforms, such as tightening profile privacy, has more lasting effect. A personal digital footprint check can map what is exposed.

Sources and Notes

Sources checked 10 October 2026. Prices and policies are as published by Opsis on the date checked; OSINT-S has no affiliation with the vendor and does not resell the tool.