Discontinued performance testing tools and successors

Performance tooling churns: products rebrand, vendors acquire, and cloud services shut down. This directory deliberately keeps discontinued entries so old diagrams, RFPs, and blog posts still resolve to something truthful.

Use this guide to scan discontinued or legacy-named tools and follow successor notes where we have them. Do not start new programs on discontinued products without confirming vendor support yourself.

When a successor exists, treat it as a starting point, not a guarantee of feature parity. Re-run proof-of-concepts, especially for licensing and cloud regions.

If you maintain internal runbooks, link them to the living tool entity pages here rather than static intranet copies that rot silently.