Articles & Guides

Site missing from Google? Learn how to check indexing with the site: operator and Search Console, find blockers — robots.txt Disallow, noindex, server errors, downtime — and get your pages back into search results, step by step.

Website or IP blacklisted? Check Safe Browsing, SmartScreen, email DNSBLs and AbuseIPDB: dig commands, 127.0.0.x return codes and the delisting order.

Website privacy policy: who needs one, which sections it must contain, how to publish it, how to run a compliant cookie consent banner under GDPR and ePrivacy, and what fines you risk without one.

How to choose web hosting: shared vs VPS vs dedicated vs cloud, hidden shared-plan limits (inodes, CPU seconds), backup and SLA math in real downtime minutes, measuring TTFB before you pay, contract red flags, and a 12-point vendor-neutral checklist.

Website security check: the complete checklist. How to test any website online in 5 minutes — HTTPS, security headers, CSP, cookies, malware — plus a full owner's checklist with curl examples and a layer-by-layer summary table.

Website hacked — what to do in the first hour: a minute-by-minute plan. Isolate the site, rotate all credentials, preserve logs, find the web shell and entry point, restore from a clean backup, and close the vulnerability. With commands, a 10-step checklist, and FAQ.

Check ping in seconds: run ping on Windows, macOS or Linux, or test online from another network. Under 50 ms is good; over 200 ms feels slow.

Since June 2025 Russian ISPs throttle Cloudflare-proxied connections after about 16 KB; ECH is dropped since November 2024. How to test it and fix it.

Email not arriving? A step-by-step checklist for senders and recipients: Spam folder, SPF, DKIM, DMARC, MX records, blacklists, bounce codes 550, 552, 554, greylisting. Includes a symptom-cause-fix table, dig commands, and answers to common questions.

How to check a domain's MX record: a DNS check or dig, what the priorities and an empty answer mean, common mail problems and the link to SPF/DKIM/DMARC.