Articles & Guides
Useful resources for web developers and system administrators
AI
GEO vs SEO: How AI Optimization Differs
GEO vs SEO explained: what they share (E-E-A-T, technical health), how they differ by goal, metrics, format and crawlers, whether to choose, plus a 2026 plan.
AI
Bing Copilot Optimization: How to Get Cited by AI
How to get cited by Bing Copilot: the link to Bing ranking, the role of Bingbot and Bing Webmaster Tools, Schema, IndexNow for fast indexing, and Google differences.
AI
Perplexity SEO: How to Get Cited in Answers
How to optimize for Perplexity: how it picks sources, allowing PerplexityBot in robots.txt, citation factors, GEO vs classic SEO, and checking your mentions.
AI
How to Appear in AI Answers: ChatGPT, Perplexity, Yandex
How to appear in AI answers from ChatGPT, Perplexity, Yandex and AI Overviews: extractable passages, sourced facts, Schema, AI crawler access, checklist.
AI
How to Promote a Website in AI Neural Networks (GEO)
Promote your website in AI answers (ChatGPT, Perplexity, Google AI Overviews, Gemini): the three GEO pillars, cited content formats, llms.txt, and a checklist.
AI
Google AI Overviews: How to Rank and Turn It Off
How to rank in Google AI Overviews: query fan-out, E-E-A-T, extractable passages, Schema. Impact on CTR and traffic, plus how to turn AI Overviews off.
AI
Yandex Neuro: How to Appear in Its AI Answers
How Yandex Neuro works, which signals its neuro-search uses to pick sources, and what raises your citation odds. Factors, checklist and a free test.
Networking
SMTP Errors 550 and 554: Causes and Fixes
SMTP errors 550 and 554 explained: what the codes mean, enhanced 5.x.x status codes, rejection causes (SPF, DKIM, DMARC, blacklist) and how to fix them fast.
DNS
SOA DNS Record: Fields, Serial, and How to Read It
Understand the SOA DNS record: all fields (MNAME, RNAME, serial, refresh, retry, expire, minimum), the YYYYMMDDnn serial format, zone transfers, and dig checks.
DNS
SRV Record: DNS Syntax, Priority, Weight and Examples
An SRV record (RFC 2782) maps a service to a host and port: _sip._tcp.example.com SRV 10 60 5060 sip.example.com. Priority, weight, lookups.