Why SPF too many DNS lookups errors happen, how to count lookups in your record, and five safe ways to bring your SPF record back under the limit of 10.
Open source vs proprietary software compared on true cost: licences, support, hosting, skills, customisation and exit costs over the full lifecycle.
Two-factor authentication methods ranked: SMS, authenticator apps, push prompts, security keys and passkeys, with where each one is weak.
What an offline first app is, when your product needs one, and how local storage, sync queues and conflict resolution make it work reliably.
How a reverse DNS lookup turns an IP into a hostname, why mail servers reject senders without a valid PTR record, and how to set one up correctly.
How to write a software requirements document that developers can quote and build from: structure, examples, common mistakes and a checklist.
Why web application maintenance matters after launch: security patches, upgrades, backups, monitoring and fixes, and how to plan and budget for them.
Why website uptime monitoring matters, which checks to set up (HTTP, keyword, SSL, DNS, cron), sensible intervals, and how to avoid false alarms.
URL encoding explained: why spaces become %20, which characters must be percent-encoded, plus vs %20, double encoding bugs, and the right functions to use.
Prompt engineering basics for business teams: the parts of a good prompt, before-and-after examples, reusable templates, testing and safe use of AI.
12 practical ways to reduce cloud costs: right-sizing, scheduling, commitments, storage tiers, data transfer and the habits that keep bills low.
ORM vs raw SQL for business applications: productivity, performance, security and maintainability trade-offs, and why most teams use both.
