MXToolbox SPF Checker: MXToolbox is a reliable solution for real-time SPF record evaluation, error detection, and DNS lookup ...

Appleu2019s security update on July 31st may have patched a widespread DNS flaw on Mac servers, but it hasnu2019t closed the debate on their handling of it, nor the risk to Mac OS X users.

Cloudflare has launched a new version of its free DNS (Domain Name System) service called Cloudflare 1.1.1.1 for Families that blocks adult content and malware before your browser ever has a ...

It’s been a few weeks since [Dan Kaminsky] announced the nature of the DNS vulnerability and allowed 30 days of non-disclosure for patches to be applied before details of the exploit went pub… ...

This feature is expected to arrive later this year or next year. Enable DoH in Google Chrome Chrome 83 and later supports DNS-over-HTTPS, but the feature isn't enabled by default for all users. To ...

Learn how to enable & test DNS over HTTPS in Windows 11/10. Enable system-wide DoH service by editing the Registry & using pktmon.exe.

How to test if DoH is working To check if the Windows DoH client is doing its job, you can use the PacketMon utility to check the traffic going out to the web over port 53 — once DoH is enabled ...

By flushing the Windows 10 DNS cache, you can eliminate the clutter and reestablish a pristine cache of valid and useful information. The easiest way to accomplish this task in Windows 10 is from ...

First, most (but not all) DNS servers sequentially assign the ports they use in making DNS queries. That is, they start with 58363, then use 58364, and so on, incrementing by one.