Overview / Terms of use

Terms of use

Which terms apply while you are reading this website?

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These ones, and they reach no further than the pages themselves. Nothing written here licenses the OpTier product, sets the commercial terms of a supply, or obliges either side to enter into one.

What is this website, in contractual terms?

A published account of a monitoring product and of the engineering ideas underneath it, kept online so an evaluator can read the argument before speaking to anybody. Sending the demo form opens an email conversation and achieves nothing beyond that: no order is placed, no licence is granted, no capacity is held, no trial period begins, and neither party takes on an obligation to the other. OpTier is software a customer installs on infrastructure they control; this is not an operations business and we do not administer or repair anybody's systems, so no page here should be read as an offer to take over the running of yours.

How far can the technical material here be relied upon?

It is written to hold true in general about distributed tracing, baselining and alerting, and the generality is deliberate. Your architecture, your traffic shape, your regulatory position and whatever instrumentation you already run all depart from the neutral case these pages describe, so nothing published here constitutes a design specification for a named system. Where a page works an example through with figures in it, the page says on its face that the figures are illustrative: they are there to show how a formula behaves, not to describe an installation, an organisation or a measured outcome.

What may the latency budget allocator be used to justify?

Its own arithmetic, and nothing further. The allocator totals the millisecond values you type, subtracts them from your target, divides to find each hop's share and draws that share as a bar. It knows nothing of any real system, retains nothing once the tab closes, transmits nothing to this server or elsewhere, and models neither work happening in parallel nor the overhead the instrumentation itself adds. Carrying one of its numbers into a service level promised to somebody else would be reading far more into the tool than it contains.

What are readers permitted to do with these pages?

• Read them, quote them where the quotation carries attribution, and link to any page without asking us first.
• Let the server and the form endpoint be: no port scanning, no synthetic load, no effort spent reaching anything these pages do not publish.
• Enter your own details in the demo form and nobody else's — not a colleague's, not a customer's.
• Refrain from republishing this writing under another name or presenting it as your own work.

Who owns the writing, the design and the photographs?

The words, the page structure, the typographic treatment and the OpTier mark are ours. The photographs are not: each was taken by a photographer who released it under a free licence, and each remains that photographer's. The section immediately below records, for every photograph on the site, who made it, which licence covers it and where the original can be found.

Which photographs appear here, and under which licences?

Every photograph published here was released under terms that allow commercial reuse; a non-commercial or no-derivatives licence ruled a candidate out at the point of selection, since these pages are both resized and commercial. Where an image sits in the public domain, or its author gave up rights through a CC0 waiver, no credit is owed to anyone, and the entry appears below regardless — a partial credit list is a misleading one. Where a Creative Commons attribution licence applies, the entry carries what that licence asks for: the photographer named, the licence text linked, and the original file linked alongside it.

• lit-office-windows-night.webp — Dozens of lit office windows across the face of a building at night by Mike Kononov mikofilm, CC0 — original file
• instrument-wall-operators.webp — Three technicians reading a wall of analogue dials and chart recorders in a control room by NASA Glenn Research Center, Public domain — original file
• power-supply-wiring.webp — A bundle of coloured wires leaving a circuit board inside an opened power supply by blacklerphotos, CC BY — original file
• open-office-desk-worker.webp — A person working at a laptop in an open office seen through a glass partition by Crew crew, CC0 — original file
• start-stop-control-panel.webp — Close view of an industrial control panel with a red indicator lamp and start and stop buttons by USDAgov, Public domain — original file
• trip-switch-panel.webp — A switchgear cabinet handle set against a green, yellow and red position dial by USDAgov, Public domain — original file
• bright-meeting-room.webp — An empty white meeting room with a long table, dark chairs and two glass boards by Breather breather, CC0 — original file
• dark-meeting-room.webp — A meeting room with a dark wooden table and mesh chairs beside tall factory windows by Crew crew, CC0 — original file
• city-skyline-dusk.webp — A city skyline of office towers photographed from above at dusk by an uncredited photographer, CC0

What about the outbound links on this site?

An outbound link points at material somebody else publishes and can change or disappear without telling us. We choose what to link to and take no responsibility for what a reader finds at the far end of it.

Where does our responsibility stop?

These pages are published as they stand, without a promise that they fit your circumstances. A decision taken from general information read on a website belongs to whoever takes it, and no liability for its consequences is accepted here. Where the law refuses to let liability be excluded or capped, nothing in this document attempts to exclude or cap it.

Can these terms be revised?

They can, and a revision is recorded by its date rather than announced. The date below is the most recent one.

Last revised 15 August 2026. Questions: contact@optier.com.