Most advice about evaluating sources tells you to inspect the page in front of you — check the domain, look for an author, scan the "About" section, weigh the design. That advice is mostly wrong, and researchers can show you why. When Stanford's education group put historians, undergraduates, and professional fact-checkers through the same tests, the fact-checkers ran circles around everyone else. Their trick wasn't sharper eyes. It was that they barely looked at the page at all.
That habit has a name — lateral reading — and it's the backbone of SIFT, a four-move method developed by digital-literacy researcher Mike Caulfield. SIFT stands for Stop, Investigate the source, Find better coverage, and Trace claims to the original. You rarely need all four; often the first two are enough. Here's how each one works in practice.
The four moves of SIFT
01.Stop
The first move isn't research — it's a pause. When a headline triggers a strong reaction, that's exactly the moment you're least likely to check. Stop long enough to ask two things: do I actually recognize this source, and do I know enough to judge the claim? If the answer to either is no, you're not ready to share. Mike Caulfield, who built the SIFT framework from studying how professional fact-checkers work, describes Stop as the move you return to whenever you feel yourself getting pulled deeper into a single page.
02.Investigate the source
Here's the counterintuitive part. Don't scrutinize the website itself — a slick logo and an 'About' page prove nothing, and bad actors design both to look convincing. Instead, read laterally: open a new tab and search the outlet's name, ideally with a word like 'wikipedia' or 'bias'. Stanford's research team (who coined the term lateral reading) found that professional fact-checkers reached accurate judgments in a fraction of the time it took historians and students, precisely because they left the page fast instead of reading top-to-bottom. Thirty seconds of lateral reading beats ten minutes staring at the source.
03.Find better coverage
Sometimes the source barely matters — what you really want is the claim. If a page reports that a study found X, don't argue with that one page. Search the claim itself and see whether established outlets, fact-checkers, or the study's own authors describe it the same way. If the only places making the claim are a cluster of unknown sites echoing each other, that's a signal. FAXTR is built for this move: one query searches 100+ IFCN-signatory fact-checkers at once, so you can see in seconds whether a claim already has an independent verdict.
04.Trace claims, quotes, and media to the original
Most misleading content isn't invented — it's stripped of context. A real quote gets clipped, a real photo gets a false caption, a real statistic loses its denominator. Follow each back to where it started: click through to the actual study, find the full quote, reverse-image-search the photo. Often the original context quietly contradicts the framing that went viral. If you can't reach an original at all, treat the claim as unsupported no matter how many accounts repeat it.
What lateral reading actually looks like
Say you land on an article from "Global Health Report Daily," a name you've never seen. The instinct is to read the piece and judge whether it feels legitimate. Resist that. Open a second tab, search the outlet's name, and add the word wikipedia. Within a few results you usually learn who owns it, whether it has a track record, and whether anyone credible has flagged it. If nothing comes up at all — no Wikipedia entry, no coverage, no history — that absence is itself informative. Real news organizations leave footprints.
The same logic applies to authors. A byline with a real publication history, named editors, and a record of corrections is a far stronger signal than a confident tone. Anonymous or unsearchable bylines don't make a claim false, but they shift the burden of proof onto you — and that's a cost worth noticing before you share.
Credibility is a signal, not a verdict
One caveat worth holding onto: a credible outlet can still get a specific story wrong, and an obscure blog can occasionally be right. Source evaluation raises or lowers your confidence — it doesn't hand you a final ruling. That's why the "Find" move matters so much. When several independent outlets, working separately, converge on the same account, your confidence should climb sharply. When a claim lives only inside one source and its echoes, stay skeptical no matter how professional the page looks.
This is also the honest limit of any checklist, including this one. SIFT won't tell you whether a contested claim is true. What it does — reliably, and fast — is tell you whether you're looking at something worth taking seriously, or a page dressed up to look that way.
A 60-second routine you can actually keep
Put together, the moves form a habit rather than a chore. Feel the reaction, stop. Open a tab, search the source. Search the claim, see who else reports it. Click through to the original before you believe the framing. Do that for a week on anything you're tempted to share, and it stops feeling like work — it becomes the small pause that separates informed sharing from accidental amplification.
Find better coverage in one search
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