ユーザー名検索ガイド
1つのハンドルネームから正体を辿る実践的で誇張のないガイド — 技術の仕組み、何が分かって何が分からないか、法的・倫理的な境界線、そして自分自身のフットプリントの守り方。
How to Find Someone by Username: A Step-by-Step Guide
Learn how to find someone by username across social media, dating and gaming platforms — the methods that work, what they can and can't reveal, and how to do it safely.
読了時間 8分What Is a Reverse Username Search? (And How It Works)
A reverse username search turns a single handle into a map of someone's public accounts. Here's exactly how it works, what it reveals, and when to use one.
読了時間 8分Is It Legal to Search Someone by Username?
Searching a public username is generally legal, but how you use the results has limits. A plain-English look at the law, ethics and red lines of username lookups.
読了時間 8分How to Find Someone's Hidden Social Media Accounts
Secondary and 'finsta' accounts are usually hidden in plain sight. Learn the username, email and cross-platform techniques that surface accounts people forget they linked.
読了時間 8分How to Protect Your Privacy When You Reuse Usernames
The same handle habit that helps you find others exposes you too. A practical checklist to audit your own username footprint and lock down what you don't want found.
読了時間 8分OSINT Username Search: Techniques and Tools
How open-source intelligence practitioners pivot from a single username to a full profile — the core techniques, the tooling landscape, and where AliaScan fits.
読了時間 8分How to Catch a Catfish: 6 Signs and How to Verify Someone Online
Suspect you're being catfished? Learn the red flags of a fake online identity and the exact steps — including a username search — to verify who you're really talking to.
読了時間 8分How to Find Someone's Instagram From Their TikTok (and Vice Versa)
Want to find someone's Instagram from their TikTok handle? Here are the reliable ways to connect a person's accounts across the two apps — including when they haven't linked them.
読了時間 8分How to Verify an Online Seller or Buyer Before You Pay
Buying from a stranger on Depop, Facebook Marketplace or via Cash App? Learn how to check a seller or buyer is legitimate — including a username and $cashtag lookup — before money changes hands.
読了時間 8分How to Find Hidden Dating Profiles (What Actually Works)
Most 'search all dating sites free' tools are selling you nothing. Here's what can genuinely be found from a handle, what no tool can do, and how to read the result.
読了時間 7分How to Find Out if Your Partner Has a Dating Profile
A calm, honest walkthrough of what you can actually verify about a partner's online accounts, what no tool can confirm, and where checking crosses into territory you'll regret.
読了時間 7分How to Find Out Who Is Behind a Fake Account
Someone made a fake profile of you — or is using one to harass you. Here's how to gather identifiers, run the handle, avoid misidentifying an innocent person, and get the account removed.
読了時間 8分How to Verify Someone's Identity Online Before You Meet
A ten-minute check that catches almost every fake identity: photo verification, account history, a live video test and the meet-up rules that hold even when someone checks out.
読了時間 7分The Best Username Search Tools in 2026: An Honest Comparison
Open-source scanners, free availability checkers, people-search subscriptions and hosted lookups compared on coverage, freshness, output and price — including where AliaScan loses.
読了時間 8分How to Find Old Accounts You Forgot About
Dormant accounts are the biggest hole in most people's privacy and security. Four methods to find every account you've ever opened — then delete, clean or lock down what turns up.
読了時間 7分How to Find a Deleted Instagram Account (What's Still Recoverable)
Deleted, deactivated, renamed or blocked look identical from the outside. Learn to tell them apart, find what survives in archives, and locate where the person went instead.
読了時間 7分A Parent's Guide to Checking Your Child's Online Footprint
How to see what a stranger can see about your kid — the handle-first method, the specific risk signals to look for, and the platform settings that actually fix them.
読了時間 8分How to Find Social Media Accounts Linked to an Email Address
Platforms deliberately stopped confirming email-to-account. Here's what still works — local-part handles, Gravatar, breach data and exact-phrase search — ranked by how much it actually yields.
読了時間 7分What Your Username Reveals About You
A handle is closer to a fingerprint than a nickname. What the string itself leaks, what the reuse pattern leaks, and how to run three separate identities that never touch.
読了時間 7分Advanced OSINT Username Techniques: Beyond the Basic Scan
Permutation rules, archived sources, timestamp forensics and stylometric de-confliction — the techniques that turn a list of username hits into a defensible attribution.
読了時間 8分