Updated 3 November 2026
3 November 2026: engineering examples
Added individual examples, calculation reasoning, decisions and model limits to Subnet Calculator, Transfer Time, Storage Unit Converter, IOPS Calculator, SLA Calculator, RTO/RPO, Request Builder, HTTP Method, Retry Backoff, Rate Limit, JSON Formatter, Base64, JWT Decoder, Hash Generator, SPF Analyser, DNS TTL Planner, LLM Cost and RAG Chunk Calculator. The examples cover all nine tool categories; this is a defined review set, not a certification of every page.
3 November 2026: content stewardship
Published the editorial and correction policy and this update record. Restricted potential future ad placements to a selected list of substantive tool and walkthrough pages. Navigation, search, contact, policy, error and offline screens are excluded. Live advertising remains disabled.
2 November 2026: practical walkthroughs
Published backup retention sizing, cron UTC and UK local-time checking, and VM host capacity walkthroughs alongside the existing small-office VLAN guide. Added two reproducible worked-example cards each to Backup Storage, IP Range to CIDR, SOA Serial Generator, VM Capacity, Cron Builder and RAID Calculator.
2 November 2026: repeat usage
Added optional saved favourites containing tool identifiers only, with removal and clear controls. Worked-example buttons replace inputs and clear stale results before the next calculation. The tools remain usable without an account.
Suggest a correction
Use the Contact page to send a reproducible synthetic example. The editorial policy explains what is checked and where model and platform limits remain. Updates record actual changes; traffic or approval outcomes are not implied by a release.