2010 Verified Download — Directx End User Runtimes June

This is the most important section. Many third-party websites (e.g., DLL-files.com, Softonic, CNET Download.com) bundle this runtime with adware, toolbars, or fake "driver updaters." You should never download system-level Microsoft software from anywhere other than Microsoft.

Source: Microsoft Download Center (Official) directx end user runtimes june 2010 verified download

File Name: dxwebsetup.exe (Web installer) or more usefully, the full offline redistributable: This is the most important section

🔒 This link points directly to download.microsoft.com. It is the original, unmodified June 2010 redistributable. 🔒 This link points directly to download

No. Those are out of date. The June 2010 runtime supersedes all previous DirectX 9.0c releases.