Articles & Guides

Register a .ru domain as a foreigner: pick an accredited registrar, submit passport or company data, pass identity checks on time, read WHOIS status.

Certbot not renewing? Run certbot renew --dry-run, check certbot.timer and renewal configs, HTTP-01 and DNS-01 failures, deploy hooks and rate limits.

Best VPS providers 2026: Hetzner, DigitalOcean, Vultr, Linode, OVHcloud, Contabo, UpCloud compared on NVMe, vCPU, bandwidth, backups. How to verify.

Best domain registrars in 2026: where to buy a domain and what matters beyond price — renewal cost vs first-year discount, WHOIS privacy, bundled DNS, transfer-out ease and account 2FA. An honest comparison of Namecheap, Porkbun, Cloudflare, Squarespace Domains, GoDaddy and Dynadot.

Best web hosting providers 2026: eight global picks — Hetzner, DigitalOcean, OVHcloud, SiteGround and more. Transparent criteria, honest downsides for every pick, and a ten-minute routine to verify TTFB, DNS and SSL before you pay.

Free public DNS server addresses for IPv4 and IPv6: Cloudflare 1.1.1.1, Google 8.8.8.8, Quad9 9.9.9.9, AdGuard, OpenDNS. Pick by goal, test latency.

Website builders compared: Wix, Squarespace, Webflow, Shopify, WordPress.com, Framer, Carrd. Who each fits, SEO limits, lock-in, how to migrate.

What Schema.org structured data is and how to implement it: JSON-LD vs microdata vs RDFa, core types, ready-to-use code examples. How to check structured data online with Google, Yandex and schema.org validators, common errors and an implementation checklist.

Open Graph setup guide: the five core og tags, og:image size 1200×630, Twitter Card summary_large_image, fixing empty or stale link previews, forcing a cache refresh in Telegram and X, and validating the card with a preview tool.

How to set up email on your own domain: domain verification, MX, SPF, DKIM and DMARC, sending website mail over SMTP, and migrating providers without losing messages.