Short answer
Trustworthy sexual-health websites share checkable signatures: agency, academic, or established-nonprofit authority; named credentials; linked primary sources; current dates; no product sales.
You can verify all five in under a minute per site. And once you internalize the habit, the internet’s mixture of excellent guidance and dangerous fiction stops being intimidating and starts being navigable.
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See Tests & Prices →The trusted shortlist, with what each does best
- CDC STI pages. Current US guidance and statistics; the reference standard for transmission, testing, and treatment recommendations.
- MedlinePlus. Encyclopedic overviews in plain language; ideal first stop for understanding any condition or test.
- FDA. Diagnostics, vaccines, and drug information; authoritative on test authorizations and vaccine approvals.
- NIH institutes (NIAID, NCI, NICHD). Research context and in-depth topic pages.
- ASHA (American Sexual Health Association). Patient advocacy with clinician-reviewed education.
- Bedsider. Contraception guidance with exceptional clarity.
- Local health departments. Services, clinic finders, and local outbreak information no national site provides.
Evaluation criteria that work
- Authority: who writes and publishes. Licensed clinicians, certified educators, government agencies, academic centers? Anonymous expertise claims fail immediately.
- Evidence: linked primary sources supporting each claim (CDC guidance, journals. Not screenshots of text).
- Motive: selling versus educating. Miracle-cure sales, clinic funnels, and supplement pitches distort predictably.
- Currency: page dates and update histories, since STI guidance evolves (treatment regimens especially).
- Consensus: alignment with mainstream guidance; lone contrarianism demands extraordinary evidence, not confident tone.
Red-flag catalog with examples
Miracle-cure sales (“doctors hide this herpes cure”), conspiracy narratives (microchip testing fantasies), anonymous “doctors” with no verifiable credentials, scraped content farms repeating each other verbatim, extreme absolute language (“always,” “never,” “they don’t want you to know”), absent dates on medical claims, and comment sections functioning as editorial processes.
Any two flags together mean leaving the site.
Building your verification habit
Bookmark the shortlist above.
When a viral claim arrives, check it against one bookmark before acting. Sixty seconds prevents most harm.
For consequential decisions (starting/stopping treatment, interpreting results), confirm with a clinician as well; websites inform, clinicians decide. Teach the habit to partners and teens; health literacy compounds across households.
For the deeper skill set, see Evaluating Online Sexual Health Advice.
When to seek care
To verify online claims affecting your decisions, after acting on dubious advice (corrective evaluation beats silent worry), and for personalized resource lists from clinicians and educators who know your situation.