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ALCO has joined the Caldwell Chamber of Commerce
Read moreDesigning monitoring that earns its alerts
Read moreIntroducing ALCO Tools: a home for the small jobs
Read moreReuse is the real password problem
Read moreThe shared responsibility gap in Microsoft 365 and Google Workspace
Read moreA quick check can make your next step clearer
Read moreThe patch window problem: why known vulnerabilities are still the way in
Read moreBuilding an everyday toolkit you trust
Read moreMigrating a production platform without downtime
Read moreTraining & tutorials
Step-by-step guides with video walkthroughs, all in one place.
Checking Service Status in Under a Minute
Find out whether a service issue affects everyone or just you using ALCO's public status page. No sign-in needed, and it takes well under a minute.
Start trainingCan Strangers Send Email as Your Company?
Learn how to check whether someone could send email using your company's identity, and what SPF, DKIM and DMARC actually prove when you look them up.
Start trainingWho Really Owns Your Domain Name?
Learn how to check domain registration, expiration and transfer-lock information, so you can confirm who really controls the name your business runs on.
Start trainingProving an Email Was Faked: How to Read the Headers
Learn how email headers can help you investigate a suspicious message: what the path shows, which fields can be faked, and what actually proves origin.
Start training30 Free Online Tools That Run in the Browser
Thirty small tools for the jobs that interrupt your actual work: merging a PDF, resizing an image, counting words, converting a spreadsheet, working out a percentage.
Start trainingPrefer to learn by doing?
Explore practical training and video walkthroughs from ALCO.