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BNবাংলাBlog
Guides on website health, SEO, speed, SSL and e-mail deliverability.
Aug 17, 2026 · 8 min readClickjacking Protection: X-Frame-Options vs frame-ancestors
Clickjacking tricks visitors into clicking hidden buttons on your site inside another page. Learn how X-Frame-Options and CSP frame-ancestors stop it.
Aug 17, 2026 · 8 min readInternal Linking for SEO: A Practical Guide for Small Sites
How internal links help visitors and search engines, how to plan a simple link structure, write good anchor text and fix orphan pages and…
Aug 17, 2026 · 8 min readDo You Need a CDN? A Plain-Language Guide for Site Owners
A CDN serves your files from servers near your visitors. Learn what it speeds up, when a small business site benefits, what it cannot…
Aug 16, 2026 · 8 min readEmail Spoofing: How to Stop People Sending Mail as Your Domain
Criminals can send e-mail that looks like it comes from your domain. Learn how spoofing works, which records stop it and what DMARC cannot…
Aug 16, 2026 · 8 min readExposed Software Versions: How to Hide Server and CMS Details
Server, PHP and CMS version numbers in headers and page code help attackers pick targets. Learn where versions leak and how to hide them…
Aug 16, 2026 · 8 min readSEO Audit Checklist for Small Business Websites
A practical SEO audit checklist for small business websites: indexing, crawling, on-page basics, links, content and local signals, in the order worth fixing.
Aug 16, 2026 · 7 min readPage Caching Explained: How to Speed Up a Dynamic Website
Page caching serves ready-made HTML instead of rebuilding each page. Learn how it works, what to exclude, how to clear it safely and which…
Aug 15, 2026 · 8 min readMicrosoft 365 Email Authentication: SPF, DKIM and DMARC Setup
A practical guide to SPF, DKIM and DMARC for Microsoft 365: the records to publish, how to enable DKIM in the Defender portal and…
Aug 15, 2026 · 8 min readTLS 1.0 and 1.1 Are Obsolete: How to Disable Them Safely
Old TLS versions are deprecated and flagged in every security test. Learn which TLS versions to allow, how to disable 1.0 and 1.1, and…
Aug 15, 2026 · 8 min readHow to Set Up Google Search Console for a Small Business
Step-by-step Google Search Console setup for small businesses: choosing a property, verifying ownership, submitting a sitemap and the first reports to read.
Aug 14, 2026 · 8 min readBrowser Caching Explained: How to Set Cache-Control Headers
Browser caching lets returning visitors skip re-downloading files. Learn how Cache-Control works, which lifetimes to use and how to update files safely.
Aug 14, 2026 · 8 min readGoogle Workspace SPF, DKIM and DMARC Setup, Step by Step
Set up SPF, DKIM and DMARC correctly for Google Workspace: the exact records, where to enable DKIM signing, and how to confirm everything passes…