Jacob Hall

Lead Site Reliability Engineer · Minneapolis, MN

About

I'm a Lead Site Reliability Engineer at Dotcom-Monitor, where I run 24/7 synthetic and real-user monitoring across websites, web applications, APIs and cloud infrastructure. I also support Phone Number Monitoring, Dotcom-Monitor's sister product, which focuses on phone-line uptime and IVR testing for contact centers.

My day-to-day is about detecting failures before customers do — and then explaining, in plain language, what broke and why. Across both products that means synthetic monitoring, real browser testing, API observability, DTMF and voice-prompt validation, MOS call-quality scoring, and the alerting and incident workflows that sit on top of all of it.

I write about the craft of monitoring the things businesses depend on: web stacks, APIs, and the phone systems that still quietly carry a lot of customer-facing revenue.

Where I work

Primary

Dotcom-Monitor

Website, web application, API, DNS and SSL monitoring. Real browser and synthetic testing from a global monitoring network. Lead SRE on the platform that keeps it all running.

Sister brand

Phone Number Monitoring

24/7 automated phone-line and IVR uptime monitoring for call centers, healthcare, banks, utilities and government. Same parent company (AcrossCommunications, Inc.).

What I work on

Synthetic monitoring Web application monitoring API monitoring Real user monitoring Performance monitoring Distributed systems observability Site Reliability Engineering Incident response IVR testing IVR monitoring VoIP & SIP monitoring DTMF automation MOS / call-quality measurement Uptime engineering

Selected writing

Site reliability, web & API monitoring Dotcom-Monitor blog

What is a Site Reliability Engineer (SRE)? dotcom-monitor.com · foundations
SRE Principles: The 7 Fundamental Rules dotcom-monitor.com · practice
What is Synthetic Monitoring? Definition, Workflow & Best Practices dotcom-monitor.com · definitions
Monitoring Distributed Systems dotcom-monitor.com · architecture
Challenges in Monitoring Web Applications That Utilize SSO dotcom-monitor.com · web apps
Why Traditional Monitoring Isn't Enough for Modern Web Applications dotcom-monitor.com · opinion
Why a CDN Doesn't Solve All Your Performance Needs dotcom-monitor.com · performance

Voice, IVR & VoIP monitoring Phone Number Monitoring blog

IVR Monitoring and Testing Tools Comparison: Top 9 Solutions for 2026 phonenumbermonitoring.com · comparison
Cyara Alternative 2026: Phone Line & IVR Monitoring from $9.99/mo phonenumbermonitoring.com · comparison
The Complete Guide to IVR Testing for Call Centers phonenumbermonitoring.com · guide
Why IVR Load Testing is Crucial for Peak Call-Center Performance phonenumbermonitoring.com · load testing
SIP Monitoring: The Unsung Hero of Crystal-Clear Business Communication phonenumbermonitoring.com · SIP
SLA Compliance Monitoring for Voice Services phonenumbermonitoring.com · SLA
Proactive Kamailio Monitoring phonenumbermonitoring.com · Kamailio
Comprehensive FreeSWITCH Monitoring for a Custom VoIP Service phonenumbermonitoring.com · FreeSWITCH

Full archive: Phone Number Monitoring → · Dotcom-Monitor blog →

Elsewhere & contact

LinkedIn linkedin.com/in/jacob-hall-sre
PNM author archive phonenumbermonitoring.com · Jacob Hall
Dotcom-Monitor dotcom-monitor.com
Email hello@jacobhall.work

Disclosure

On coverage of the monitoring market. I work on Dotcom-Monitor and Phone Number Monitoring, both operated by AcrossCommunications, Inc. When I write comparisons on either company's blog, the affiliation is disclosed on the page. Any third-party tools I reference are evaluated against published documentation and pricing; please verify specifics with each vendor before purchase.