Google schedules crawling by crawl demand and crawl rate limit. From the Google Search Central perspective, this article explains crawl budget and gives practical ways to optimize crawl rate and indexation.
Indexation is the prerequisite for organic traffic. This guide explains Google's three stages — crawling, indexing, and serving — and provides a systematic method to improve indexation and troubleshoot issues.
Under mobile-first indexing, Google ranks and indexes your site based primarily on the mobile version. This guide covers responsive design, dynamic serving, and separate URLs, plus content, structured data, and media best practices with troubleshooting.