Jessica walt

@dnslookup

Having 5 years of experience in DNS servers

New York City, USAJoined March 2026

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Jessica walt's blogs

DNS LOOKUPdnschecker.hashnode.dev3 posts

DNS Monitordns-monitor.hashnode.dev1 post

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Recently published

JWJessica waltdnschecker.hashnode.devMay 1 · 3 min read

How to Use Dig and NSLookup to Trace DNS Paths

Have you ever felt like you are just shouting into a dark room when a website wont load? It is realy annoying when you know the internet is fine but your computer just refuses to find the site you nee

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JWJessica waltdns-monitor.hashnode.devApr 14 · 4 min read

Why Your DNS Configuration Might Be Killing Your Core Web Vitals

I have been talking to a lot of SEOs lately who are pulling their hair out over their Core Web Vitals. They spend weeks optimizing images and minifying their code but their scores just won't budge. Wh

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JWJessica waltdnschecker.hashnode.devApr 11 · 3 min read

How Many DNS Servers Should a Network Have

Introduction DNS servers are a critical part of any network infrastructure. They translate domain names into IP addresses so devices can connect to websites and online services. Without properly confi

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JWJessica waltdnschecker.hashnode.devApr 11 · 4 min read

Top 10 DNS Lookup & Spy Tools for Network Admins in 2026

I have spent a good portion of my career staring at terminal screens and network logs. If there is one thing I’ve learned, it’s that a network admin is only as good as their visibility. When a site go

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Jessica walt

About

Available for

Jessica walt's blogs

Recently published

How to Use Dig and NSLookup to Trace DNS Paths

Why Your DNS Configuration Might Be Killing Your Core Web Vitals

How Many DNS Servers Should a Network Have

Top 10 DNS Lookup & Spy Tools for Network Admins in 2026

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Jessica walt

About

Available for

Jessica walt's blogs

Recently published

How to Use Dig and NSLookup to Trace DNS Paths

Why Your DNS Configuration Might Be Killing Your Core Web Vitals

How Many DNS Servers Should a Network Have

Top 10 DNS Lookup & Spy Tools for Network Admins in 2026