How EOSL.ai works, where the data comes from, and what it can do for you.
End of Service Life — also called Last Date of Support — is the date after which the vendor no longer provides support, software fixes, or hardware replacement for a product. After EOSL the hardware still runs, but it is unsupported by the manufacturer.
End-of-sale is the last date you can buy the product new from the vendor. End-of-service-life (EOSL) is the later date when vendor support ends entirely. The gap between them is usually several years.
Every end-of-sale and EOSL date is taken from the vendor's own published end-of-life bulletin, and each record links back to that bulletin so you can confirm it at the source. Records also show when they were last verified.
Yes — public lookup and the bulk checker are free and need no login. Saved monitoring, alerts, and exports will be part of Stack Monitor, a paid workspace currently in development.
Cisco is fully covered today. Additional vendors are added only once their lifecycle data can be collected, normalized, source-linked, and verified to the same standard.
Yes. The bulk checker lets you paste or upload a list of part numbers and returns each one's support status, end-of-sale and EOSL dates, and source bulletin — in one report, entirely in your browser, with nothing stored.
Action Priority is a plain-language label for how urgently a part needs attention: Immediate (past EOSL), Soon (support ends within 12 months), Plan (within 36 months), or Monitor (supported, with a known timeline).
Common paths are third-party maintenance (independent support past the vendor cutoff), pre-stocking spares, scheduling a migration, or running to failure on low-criticality gear. The right choice depends on how critical the hardware is.
No. The bulk checker runs entirely in your browser — nothing you paste or upload is sent to a server or stored.