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The five checks
Run these against the page or app actually in front of you. If you cannot do one, mark it as not checked — do not mark it passed from memory.
Nothing checked yet
Select any item above and a summary will appear here. You can screenshot it for comparison next time.
What the padlock icon actually proves
This is the single most common misreading
The padlock means traffic between you and that server is encrypted. It does not mean the company is real. Certificates asserting only control of a domain are freely available, and an imitation site obtains one as easily as anyone else — same padlock, same appearance.
Put plainly: if the far end is an impostor, encryption has only guaranteed that your password reached them undisturbed.
That is why the certificate check sits fifth rather than first. The decisive one is the first: reading the domain character by character. Full explanation in confirming a real app and a real site.
When it is worth running all five
Not on every visit. These four situations justify the two minutes.
Four moments worth checking
- The first time you use a platform. Do it once, save the bookmark, and later visits cost nothing.
- Before entering a password, a code, or submitting identity documents. None of those can be taken back.
- After changing device or browser. With bookmarks not yet synced, people fall back to the search box.
- Any time somebody hands you a link. Whoever they are, that link earns its own check — the reason is in six things a legitimate platform never does.