Performance &amp; SEO

10 Best Keyword Research Tools for Beginners

Compare ten keyword research tools for finding search topics, checking competition, and planning content, with practical notes on which options suit small sites and growing teams.

10 Best Image Optimization Tools

Compare ten image optimisation tools for shrinking photos, preparing web graphics, and automating delivery, with practical notes on format support, workflow fit, and quality trade-offs.

10 Best Free Website Speed Test Tools

Find a suitable website speed tester for quick checks, repeatable lab runs, or real-user monitoring, and learn how to interpret the results without chasing a meaningless perfect score.

Ethan ClarkeRead the article

12 Best Free SEO Tools for Websites

Compare twelve useful free SEO tools for checking search visibility, researching topics, finding technical issues, and improving page metadata without committing to a costly marketing suite.

Inside this article

Quick picks
How we picked
Search visibility and research
Technical checks and page quality

Monitor Core Web Vitals With Real-User Data

Instrument LCP, INP and CLS with the web-vitals library, collect privacy-conscious RUM events, and turn field percentiles into actionable performance investigations.

Critical Rendering Path: Defer JavaScript for Speed

Trace rendering bottlenecks, choose safe script-loading strategies, and verify faster page delivery with a repeatable network and main-thread audit.

Third-Party Scripts and Performance: Reduce the Cost

Audit third-party JavaScript by network and main-thread cost, delay optional integrations safely, and keep vendor changes from silently slowing critical user journeys.

Ethan ClarkeRead the article

Font Loading Strategy: Prevent FOIT and FOUT

Keep text readable while fonts load, reduce layout shifts with metric-aware fallbacks, and choose preload and font-display settings using realistic tests.

Inside this article

Separate font visibility from typography sizing
Choose a display policy by content priority
Ship a smaller, deliberate font inventory
Match fallback metrics before polishing transitions

Lazy Loading Images Without Hurting LCP or SEO

Choose what to lazy-load, preserve native image discovery, reserve layout space, and test below-the-fold content without delaying the page's most important visual.

AI Image Optimization and Upscaling for Responsive Sites

Decide when AI image upscaling is appropriate, check for invented detail and build responsive derivatives that preserve image quality without wasting bandwidth.

XML Sitemap Structure for Large Content Sites

Design a scalable sitemap system with clean canonical URLs, meaningful partitions, accurate modification dates, and checks that catch indexing waste early.