---
title: Server
summary: null
url: https://www.fastly.com/documentation/reference/vcl/variables/server
---

- [req.grace](https://www.fastly.com/documentation/reference/vcl/variables/server/req-grace/)
- [req.is_clustering](https://www.fastly.com/documentation/reference/vcl/variables/server/req-is-clustering/)
- [req.max_stale_if_error](https://www.fastly.com/documentation/reference/vcl/variables/server/req-max-stale-if-error/)
- [req.max_stale_while_revalidate](https://www.fastly.com/documentation/reference/vcl/variables/server/req-max-stale-while-revalidate/)
- [req.restarts](https://www.fastly.com/documentation/reference/vcl/variables/server/req-restarts/)
- [server.billing_region](https://www.fastly.com/documentation/reference/vcl/variables/server/server-billing-region/)
- [server.datacenter](https://www.fastly.com/documentation/reference/vcl/variables/server/server-datacenter/)
- [server.hostname](https://www.fastly.com/documentation/reference/vcl/variables/server/server-hostname/)
- [server.identity](https://www.fastly.com/documentation/reference/vcl/variables/server/server-identity/)
- [server.ip](https://www.fastly.com/documentation/reference/vcl/variables/server/server-ip/)
- [server.pop](https://www.fastly.com/documentation/reference/vcl/variables/server/server-pop/)
- [server.port](https://www.fastly.com/documentation/reference/vcl/variables/server/server-port/)
- [server.region](https://www.fastly.com/documentation/reference/vcl/variables/server/server-region/)