What is an alt tag and how should I use it?
Summary
It’s invisible to sighted users, but vital for blind and low‑vision visitors, people on flaky connections, and anyone who likes their browser with images turned off to save data. Good: “Team photo: four developers high‑fiving at their desks.” Overkill: “A candid high‑resolution photograph of four casually dressed developers…” • Skip “image of…”. AI to the rescue… sometimes Tools like Microsoft’s automatic image descriptions or AI‑powered CMS plug‑ins can generate a first draft, but always sanity‑check the output. • Complex graphics (charts, infographics) get a short alt plus a nearby long description or data table. Nail those five and you’ll tick WCAG 2.2’s Success Criterion 1.1.1 – Non‑text Content and make life easier for a huge slice of your audience—all without adding more than a sentence or two per image.
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