DNS, Routing & BGP

1+ hour, 24+ min ago   (630+ words) For a blog, that leads to three different outcomes depending on how you connected the domain: That last case is easy to get wrong. www.taniarascia.com is a CNAME to tania.netlify.app, which has no CAA records. The…...

2+ hour, 43+ min ago   (387+ words) You built a side project. You want a real URL for it. You do not want to pay $12/year for a.com you might abandon in two months. Fair enough. Here are your actual options for getting a custom domain for…...

2+ hour, 43+ min ago   (835+ words) You changed your DNS records. You saved. You refreshed your browser. Nothing happened. You refreshed again. Still nothing. You googled "how long does DNS propagation take" and got the answer every developer dreads: Up to 48 hours. That answer is technically…...

2+ hour, 47+ min ago   (594+ words) You bought example.com. You want HTTPS on app.example.com, api.example.com, docs.example.com, and staging.example.com. That is four subdomains, and each one needs an SSL certificate. You could get four separate certificates. Or you…...

3+ hour ago   (1608+ words) Every time a browser visits a website, a DNS query leaves the machine. The query contains a domain name. That name resolves to an address. The connection proceeds. Nothing interesting happened. But the name in that query is arbitrary text....

9+ hour, 45+ min ago   (639+ words) The table below lines up the core specs across all three platforms, pulling from each vendor’s own published materials and third-party pricing trackers where official numbers are not public. Two things stand out from that table. First, Cisco and Cloudflare…...

3+ hour, 11+ min ago   (400+ words) An IP address can reveal useful information about a network, server, or internet connection. During cybersecurity research, OSINT, penetration testing, and network troubleshooting, an IP lookup tool can help you quickly understand an IP address. IP-Lookup.org is an online…...

14+ hour, 4+ min ago   (277+ words) ICANN's planned DNSSEC root key rollover requires organizations and ISPs to ensure their DNS resolvers are synchronized to prevent disruptions to online services. The DNSSEC Key Signing Key (KSK) in the internet's root servers is scheduled to be rolled over…...

14+ hour, 7+ min ago   (1501+ words) The 2026 competition for new Internet top-level domains is not fundamentally a competition to create websites. It is a competition to obtain control over a scarce, globally recognized naming resource whose commercial value may derive from exclusion, future strategic flexibility, brand…...

1+ day, 12+ hour ago   (655+ words) Originally published at guushu.com/notes. I keep the original updated, so this copy may lag. The dashboard said Enabled, DNS records said Locked, and all 49 routing rules were still there. When Cloudflare Email Routing stopped working for someone I…...