# How should server performance be considered in Technical SEO?

> Server performance affects:

- crawl capacity;

- user experience;

- TTFB;

- availability;

- rendering;

- migration reliability.

Google's crawling infrastructure explicitly considers server responsiveness when determining how aggressively it can crawl.

A server returning frequent 5xx errors can cause Google to reduce crawling.

## Sources

- [Google Search Central — Crawl Budget](https://developers.google.com/crawling/docs/crawl-budget)
- [Google Search Central — HTTP Network Errors](https://developers.google.com/search/docs/crawling-indexing/http-network-errors)

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Answered by Abhinav Krishna (https://www.theseocentral.com/author/abhinav-krishna)
Source: https://www.theseocentral.com/technical-seo-faq/how-should-server-performance-be-considered-in-technical-seo