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Performance & Core Web Vitals

Core Web Vitals, LCP, CLS, INP. Real numbers from real builds, not benchmarks. What actually moves the needle for site speed in 2026.

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12 jul 2026 WebP vs JPEG in 2026: Pick the Right Image Format After building 12,000+ sites I've run this debate more times than I can count. WebP isn't always the answer. Here's the full picture on which format actually makes your site faster in 2026.
1 jul 2026 Vercel Bandwidth Bills: How to Stop the Surprise Charges Vercel's free tier feels generous until you wake up to a $300 invoice you never saw coming. Here's what actually triggers egress charges, and how to stop it happening to you.
23 jun 2026 How bot farms spiked my Vercel bill, and the firewall fix that took 50 days to find My Vercel bill spiked to $50-200 a day with no matching rise in real visitors. It was bot traffic, and the fix took two minutes once I found it, after 50 days and several thousand dollars.
3 may 2026 Core Web Vitals on Large Sites: How to Hit Sub-1.5s LCP LCP under 1.5 seconds on a large site isn't a myth, it's a plumbing problem. Here's exactly how we engineered it at Seahawk, with specific tools, real numbers, and no hand-waving.
30 apr 2026 Luxury Jewelry Sites That Load in Under 1.5 Seconds Luxury jewelry sites are notoriously slow, massive imagery, bespoke fonts, parallax everything. Here's exactly how I get them under 1.5 seconds without stripping out what makes them feel expensive.