Explain how iframes impact performance and SEO.

Short answer: Performance: Iframes load as separate browsing contexts, adding extra network requests and increasing page load time. SEO: Content inside iframes isn’t fully indexed by search engines. Links and text inside may not count toward the parent page’s SEO. Best Practice: Use iframes only when necessary (e.g., embedding maps or videos). Add title attributes for accessibility.

Example code

<iframe src=" title="Location Map"></iframe> Key Takeaway: Iframes isolate content — great for embedding, but can slow pages and weaken SEO. Follow me on LinkedIn: CSS Interview Questions

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.