The Website Specification(specification.website)

526 points by k1m 4 months ago | 210 comments

Website Spec is a platform-agnostic specification and checklist of 128 technical features a good website should have, covering SEO, accessibility, security, and agent readiness.

Free, fast diagnostic tools for DNS, email authentication, and network security(mrdns.com)

52 points by dogsnews 6 months ago | 4 comments

No DNS address record found for repo.maven.apache.org(nslookup.io)

64 points by mfiguiere 3 years ago | 18 comments

About dn42(dn42.dev)

13 points by immibis 2 years ago | 5 comments

NIH.gov DNS servers down, making PubMed, BLAST, etc. unreachable(nslookup.io)

398 points by raphman 1 year ago | 278 comments

NsLookup.io page showing authoritative DNS record lookup for www.nih.gov, shared to illustrate an NIH DNS outage affecting PubMed and BLAST.

RFC 9498: The GNU Name System(gnunet.org)

20 points by simjue 2 years ago | 1 comments

What came first: the CNAME or the A record?(blog.cloudflare.com)

446 points by linolevan 9 months ago | 153 comments

Cloudflare blog post examining the ordering of CNAME and A records in DNS responses and what the DNS standards say about it.

Implement DNS in a Weekend(implement-dns.wizardzines.com)

594 points by asicsp 3 years ago | 68 comments

Julia Evans's blog post announcing a free guide to implementing a DNS resolver from scratch in about 200 lines of Python.

DNSSEC disruption affecting .de domains – Resolved(status.denic.de)

724 points by warpspin 5 months ago | 383 comments

DENIC status page incident report on a resolved DNSSEC disruption affecting .de domains; screenshot shows a Verisign Labs DNSSEC analyzer for nic.de.

How to set up SPF, DKIM, and DMARC for your sending domain(mailfully.com)

49 points by spy888 25 days ago | 20 comments

A blog guide from Mailfully explaining how to configure SPF, DKIM, and DMARC DNS records for an email sending domain.

Why is DNS still hard to learn?(jvns.ca)

458 points by TangerineDream 3 years ago | 232 comments

Julia Evans blog post exploring why DNS remains hard for newcomers to learn despite being stable for decades.

A German ISP changed their DNS to block my website(lina.sh)

705 points by shaunpud 1 year ago | 356 comments

Blog post alleging German ISP Telefónica/O2 altered its DNS to return NXDOMAIN for the author's site after she exposed an organization it belongs to.