The engineering blog
Practical notes on search visibility, redirects, page speed and multilingual sites, from building and auditing real websites.
Semrush tracked 400 US desktop buying searches for a year and found an AI Overview on 88% of them by August 2026. What the study shows, what it can't show, and five searches to run about your own company.
Bozhidar Ivanov
Chrome and Firefox turned on JPEG XL in October 2026, but Edge hasn't. What changed, what it means for your page speed, and five steps to test it and add it without breaking images.
Bozhidar Ivanov
A pre-launch audit found almost 5 MB of oversized images, 17 preloaded fonts and a script running ahead of the page title. Here's the quick version, and how to check your own site in ten minutes.
Bozhidar Ivanov
A missing translation shouldn't borrow another language. Quick lessons on hreflang, sizing, fonts and caching from a real English and Bulgarian site.
Bozhidar Ivanov
A page rename can quietly cost you rankings and backlinks. Here's the short version of what should happen to every old address.
Bozhidar Ivanov
