--- title: "Blog | ThemeSniffer" description: "Tips, guides, and insights about WordPress themes, plugins, and website development. Learn how to identify themes, optimize your WordPress site, and stay updated with the latest trends." canonical_url: "https://themesniffer.com/blog/" author: "Ruslan Saifullin" source: "Generated from HTML by scripts/build-markdown.mjs — do not edit by hand." --- Blog # WordPress Tips & Insights Guides, tutorials, and best practices for WordPress developers, designers, and site owners. Research September 09, 2026 ## [What WordPress Themes Do Famous Brands Use? 50 Sites Revealed](https://themesniffer.com/blog/wordpress-themes-famous-brands-use) TIME, NASA, Vox, Spotify, Harvard, the White House - all on WordPress, almost none on a theme you could buy. What 50 famous sites are actually built on. 21 min read [Read article](https://themesniffer.com/blog/wordpress-themes-famous-brands-use) Guides July 01, 2026 ## [How to Check Any WordPress Site's Tech Stack (2026)](https://themesniffer.com/blog/how-to-check-wordpress-tech-stack) The theme is only the surface. Learn to read the plugins, hosting, CDN, and speed behind any WordPress site, and what each layer reveals about the business. 11 min read [Read article](https://themesniffer.com/blog/how-to-check-wordpress-tech-stack) Guides July 1, 2026 ## [How to Reverse-Engineer Any WordPress Site's Design](https://themesniffer.com/blog/reverse-engineer-wordpress-design) Detecting the theme is step one. Learn how to deconstruct a site's fonts, colors, spacing, page builder, and plugin stack - then rebuild the parts you love as your own. 14 min read [Read article](https://themesniffer.com/blog/reverse-engineer-wordpress-design) Performance February 28, 2026 ## [Fastest WordPress Themes (Speed-Tested the Top 15)](https://themesniffer.com/blog/fastest-wordpress-themes) We speed-tested 15 popular WordPress themes on identical hosting. See which themes scored 100 on PageSpeed Insights and loaded in under 600 ms. 21 min read [Read article](https://themesniffer.com/blog/fastest-wordpress-themes) Research February 28, 2026 ## [Most Popular WordPress Themes in 2026 (We Analyzed 50,000 Sites)](https://themesniffer.com/blog/most-popular-wordpress-themes) We scanned 50,000 WordPress sites to find out which themes people actually use. See the full breakdown by category, performance, and market share. 18 min read [Read article](https://themesniffer.com/blog/most-popular-wordpress-themes) Guides February 3, 2026 ## [The Ultimate Guide to WordPress Competitive Analysis (2026)](https://themesniffer.com/blog/wordpress-competitive-analysis) Learn how to reverse-engineer any competitor's WordPress tech stack - their themes, plugins, hosting, and performance strategies - and turn those insights into an actionable plan. 18 min read [Read article](https://themesniffer.com/blog/wordpress-competitive-analysis) Guides February 3, 2026 ## [How to Find What Plugins a WordPress Site Is Using (2026 Guide)](https://themesniffer.com/blog/how-to-find-wordpress-plugins) Learn 3 proven methods to identify any WordPress plugin instantly - from a one-click browser extension to manually digging through source code. 14 min read [Read article](https://themesniffer.com/blog/how-to-find-wordpress-plugins) Guides February 3, 2026 ## [How to Find Out What WordPress Theme Any Website Is Using (2026 Guide)](https://themesniffer.com/blog/how-to-find-wordpress-theme) Learn 3 proven methods to identify any WordPress theme instantly - from a 2-second browser extension click to digging through source code yourself. 14 min read [Read article](https://themesniffer.com/blog/how-to-find-wordpress-theme) ## Stay Updated Follow us on X for the latest WordPress tips, theme discoveries, and product updates. [Follow @ruslan\_dev\_ai](https://x.com/ruslan_dev_ai)