The goal of crawl budget optimization is to allow engines to see more useful pages during its crawls, so not to waste time on uninteresting URLs. Thus, the engine will detect additions and modifications made to the site more quickly, therefore allowing Google to be more responsive to the SEO optimizations that you implement.
The meta description has no direct weight for SEO: this means that the keywords placed in the tag are not taken into account by Google as a direct criterion for the positioning of a web page.
However, it is worth taking great care in writing it because it plays a major role in deciding Google users to visit your site when browsing search results.
In fact, the description metadata simply refers to the text that appears below the blue link in search results.
People rely on the metadata description text to get an idea of what's on the page, so it's crucial to optimize this metadata so that it makes people want to visit your content over your competitors'.
Several factors can be addressed in order to optimize your crawl budget:
This is about minimizing the same content accessible via multiple URLs.
Depending on the typology, it will be necessary to set up the necessary redirections, to put in noindex, to exclude via the robots.txt file and/or to no longer allow their generation or internal meshing towards these URLs.
The presence of links in errors (404, 500, no response) or in redirects (301,302) will waste time for the engines, so it will be important to reduce their presence as much as possible. Also think about identifying and correcting redirection chains.
Identify empty or nearly empty pages and pages whose content does not allow you to attract traffic. Delete them and determine whether it is useful to reuse the content on another page of the same theme.
Perfecting your internal network:
In fact, the more quickly and easily a page is accessible in the structure of the site, the greater its probability of being crawled.