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BNবাংলাBlog
Guides on website health, SEO, speed, SSL and e-mail deliverability.
Oct 1, 2026 · 8 min readFeatured Snippets: How to Format Content Google Can Quote
Featured snippets quote one page at the top of Google. Learn how they are chosen, how to format answers, lists and tables, and when…
Oct 1, 2026 · 8 min readWhy Your Website Slows Down or Crashes During Traffic Spikes
Sales, newsletters and viral posts can bring a website to its knees. Learn why sites slow down under load and how to prepare so…
Oct 1, 2026 · 7 min readCatch-All Email Addresses: Pros, Cons and the Spam Problem
A catch-all mailbox accepts mail sent to any address at your domain. See the benefits, the spam and security costs, and the safer alternatives…
Oct 1, 2026 · 8 min readSelf-Signed SSL Certificates: When Are They Acceptable?
Self-signed certificates encrypt traffic but browsers do not trust them. Learn where they are acceptable, where they are risky, and the better free options.
Oct 1, 2026 · 8 min readURL Parameters and SEO: Filters, Tracking and Crawl Waste
URL parameters from filters, sorting and tracking tags create endless duplicate URLs. Learn which ones to index, canonicalise or block, with clear examples.
Oct 1, 2026 · 8 min readFetchpriority Explained: Tell the Browser What Matters First
The fetchpriority attribute lets you tell browsers which image or script matters most. Learn when to use high and low, with examples and mistakes…
Oct 1, 2026 · 8 min readNo-Reply Email Addresses: Why They Hurt Deliverability
No-reply addresses frustrate customers and waste useful engagement signals. See when they cause harm, what to use instead, and how to route replies sensibly.
Oct 1, 2026 · 8 min readWebsite User Accounts: Least Privilege for Admins and Staff
Too many admin accounts make a website easy to break into. Learn how to set user roles by least privilege, remove old accounts and…
Oct 1, 2026 · 8 min readStaging Site Indexed by Google? How to Fix and Prevent It
Found your staging or dev site in Google results? Here is how to remove it quickly, why robots.txt alone fails, and how to keep…
Oct 1, 2026 · 8 min readUnused CSS: How to Find and Remove It Without Breaking Pages
PageSpeed says "Reduce unused CSS"? Learn where unused CSS comes from, how to measure it with Coverage, and how to remove it safely without…
Oct 1, 2026 · 8 min readSMTP Ports 25, 587 and 465: Which One Should You Use?
Port 25, 587 or 465? Learn what each SMTP port is for, which to use for your website or mail app, and how to…
Oct 1, 2026 · 8 min readCORS Explained: The Misconfigurations That Expose Your Data
CORS decides which other websites may read your responses. Learn how it works, the common misconfigurations that leak data, and how to set it…