---
title: "Supported S3 HTTP Headers"
slug: "supported-s3-http-headers-tg"
tags: ["5.5"]
updated: 2026-10-27T23:00:54Z
published: 2026-10-27T23:00:54Z
canonical: "docs.vastdata.com/supported-s3-http-headers-tg"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.vastdata.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Supported S3 HTTP Headers

The VAST S3 server supports the following HTTP headers:

- S3 HTTP headers:

  - Host
  - Expect
  - Content-Length
  - Content-MD5
  - Content-Type
  - Expires
  - Transfer-Encoding
  - Range
  - If-Match
  - If-None-Match
  - x-amz-meta-
  - x-amz-copy-source
  - x-amz-copy-source-if-match
  - x-amz-copy-source-if-none-match
  - x-amz-copy-source-if-modified-since
  - x-amz-copy-source-if-unmodified-since
  - x-amz-copy-source-range
  - x-amz-grant-
  - x-amz-aclx-amz-metadata-directive
  - x-amz-decoded-content-length
  - Connection
  - x-amz-content-sha256
  - x-amz-bucket-object-lock-enabled
  - x-amz-object-ownership
  - x-amz-bypass-governance-retention
  - x-amz-object-lock-mode
  - x-amz-object-lock-retain-until-date
  - x-amz-object-lock-legal-hold
  - Access-Control-Request-Headers
  - Access-Control-Request-Method
  - Access-Control-Request-Origins
  - x-amz-tagging-directive
  - x-amz-tagging
  - x-amz-datereferer
  - x-amz-trailer
  - x-amz-checksum-*algorithm*
- Custom S3 HTTP headers:

  - x-amz-copy-disposition. See [Renaming Objects](/docs-5-5/docs/renaming-objects-tg).
  - x-amz-delete-contents. See [Using Trash Folder for S3 Objects](https://support.vastdata.com/s/article/UUID-785dd7b9-eed1-cc5e-54c3-a1fb0dda2e9a).
- Database-related custom S3 HTTP headers:

  - tabular-txid
  - tabular-client-tag
  - tabular-client-name
  - tabular-column-sep
  - tabular-request-format
  - tabular-name-prefix
  - tabular-name-exact-match
  - tabular-limit-rows
  - tabular-max-keys
  - tabular-next-key
  - tabular-api-version-id
  - tabular-split
  - tabular-num-of-subsplits
  - tabular-response-format
  - tabular-mgmt-command
  - tabular-case-sensitive
  - tabular-schedule-id
  - tabular-retry-count
  - tabular-bc-search-path
  - tabular-start-row-id
  - tabular-tenant-guid
  - tabular-bc-list-internal-col
  - tabular-list-count-only
  - tabular-enable-sorted-projections
  - tabular-include-list-stats