Free tools
Free calculators and checkers from Keres AI, with no signup: estimate the revenue you lose to missed calls by trade, what slow lead response costs, what a front-desk hire costs against an AI receptionist, and whether your email will reach the inbox. Each tool shows its formula and assumptions.
Free tools
Email Deliverability Checker
Check your domain’s SPF, DKIM, DMARC, and MX records in seconds and see what’s keeping your email out of the inbox.
Email Spam-Score Checker
Paste a subject and body to score spam-filter risk and get specific fixes — runs entirely in your browser.
Missed-Call Revenue Calculator
Enter your call volume and average job value to see how much revenue you lose to unanswered calls every month and year.
Front-Desk Staffing Cost Estimator
See the fully-loaded annual cost of phone coverage and how many hours of the week your team still can’t answer.
HVAC Missed-Call Calculator | Keres AI
Peak-season and after-hours calls are where HVAC companies lose the most. Plug in your numbers to see the monthly and annual revenue slipping away to voicemail.
Roofing Storm-Lead Calculator | Keres AI
A hailstorm can generate a season of calls in hours — and the first roofer to answer usually wins the claim. See what an unanswered surge costs you.
Dental No-Show Calculator | Keres AI
Empty chairs are lost production you rarely recover same-day. See what your no-show rate costs every month — and every year.
Legal Intake ROI Calculator
A single missed new-client call can be thousands in lost case value handed to the firm that answered. See what your intake gap costs.
Lead Response Time Calculator | Keres AI
Speed to lead decides the job. See the estimated revenue you can recover by responding to every inbound lead in under five minutes.
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Get a quoteLast updated · Reviewed by the Keres AI team