Authors › Sarah Chen
Lead Technical SEO Engineer
Technical SEO engineer focused on Core Web Vitals, crawl-budget optimization, indexability auditing, and structured-data engineering for high-traffic sites.
Sarah leads atlookup's technical SEO research. Before atlookup she was a senior front-end engineer at two B2B SaaS companies where she shipped Core Web Vitals improvements that moved organic traffic by double digits.
She writes about the parts of SEO most consultants skip: log-file analysis, JS rendering, crawl-budget math, schema validation, and how Googlebot actually consumes your page.
How to Fix FAQ Rich Results Disappeared (Step-by-Step)
How to Fix Schema Not Showing In Rich Results (Step-by-Step)
How to Fix Mobile Usability Issues (Step-by-Step)
How to Fix Search Console Coverage Warnings (Step-by-Step)
How to Fix Sitemap Submitted But Not Processed (Step-by-Step)
How to Fix Pages Missing From Sitemap (Step-by-Step)
Migration SEO Checklist: The Complete 2026 Guide
Page Experience Signals: The Complete 2026 Guide
Best Free WebPageTest Alternatives in 2026 (Ranked)
Best Free GTmetrix Alternatives in 2026 (Ranked)
Best Free Image Compression Tools in 2026 (Ranked)
Best Free AVIF Converters in 2026 (Ranked)
Best Free WebP Converters in 2026 (Ranked)
Best Free Favicon Generators in 2026 (Ranked)
Best Free Core Web Vitals Monitoring Tools in 2026 (Ranked)
Best Free Mobile SEO Testing Tools in 2026 (Ranked)
Best Free Structured Data Testing Tools in 2026 (Ranked)
Best Free Canonical URL Checkers in 2026 (Ranked)
Best Free Meta Tag Generators in 2026 (Ranked)
Best Free FAQ Schema Generators in 2026 (Ranked)
Best Free Schema Markup Generators in 2026 (Ranked)
Best Free Server Monitoring Tools in 2026 (Ranked)
Best Free Uptime Monitoring Tools in 2026 (Ranked)
Best Free SSL Certificate Providers in 2026 (Ranked)
Best Free Image CDNs in 2026 (Ranked)
Best Free CDN Providers in 2026 (Ranked)
404 vs 410 Gone — Which One in 2026?
Soft 404 vs Hard 404 — Which One in 2026?
Noindex vs Disallow — Which One in 2026?
Canonical vs Hreflang — Which One in 2026?
Server-side Rendering vs Static Generation — Which One in 2026?
JPEG vs WebP — Which One in 2026?
WebP vs AVIF — Which One in 2026?
Cloudflare vs Fastly — Which One in 2026?
Lighthouse vs WebPageTest — Which One in 2026?
Lighthouse vs PageSpeed Insights — Which One in 2026?
Static vs Dynamic Site SEO — Which One in 2026?
Subdomain vs Subdirectory — Which One in 2026?
301 vs 302 Redirects — Which One in 2026?
JSON-LD vs Microdata — Which One in 2026?
Best Free Technical SEO Tools in 2026 (Ranked)
Best Free Hreflang Validators in 2026 (Ranked)
Best Free Robots.txt Validators in 2026 (Ranked)
Best Free Sitemap Generators in 2026 (Ranked)
Best Free Image Optimization Tools in 2026 (Ranked)
Best Free Core Web Vitals Tools in 2026 (Ranked)
Best Free Site Crawlers in 2026 (Ranked)
Best Free Schema Generators in 2026 (Ranked)
Best Free Page Speed Tools in 2026 (Ranked)
How to Fix JavaScript-rendered Content (Step-by-Step)