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BNবাংলাBlog
Guides on website health, SEO, speed, SSL and e-mail deliverability.
Aug 21, 2026 · 8 min readWildcard vs Multi-Domain (SAN) SSL: Which Should You Choose?
Wildcard certificates cover every subdomain; multi-domain SAN certificates cover a list of names. Compare coverage, security, validation and renewal here.
Aug 20, 2026 · 8 min readFinding Redirect Chains and Loops on Your Website
What redirect chains and redirect loops are, why they slow pages and confuse crawlers, how they build up over time and a simple process…
Aug 20, 2026 · 7 min readDefer vs Async: How to Load JavaScript Without Slowing Pages
Defer and async both stop scripts from blocking the page, but run code at different times. Learn the difference, when to use each and…
Aug 20, 2026 · 8 min readBIMI Explained: How to Show Your Logo in Recipients’ Inboxes
BIMI shows your logo next to authenticated e-mail in supporting inboxes. Learn the requirements, SVG and certificate rules, and whether it is worth it.
Aug 20, 2026 · 8 min readWebsite Security for Small Businesses: Where to Start
A plain-language starting point for small business website security: the real risks, the first ten fixes, who is responsible, and what to check every…
Aug 19, 2026 · 8 min readDuplicate Content in SEO: Common Causes and How to Fix Them
What duplicate content really means for SEO, why it is rarely a penalty, the technical causes behind most duplicates and how to fix each…
Aug 19, 2026 · 8 min readHow to Reduce Unused JavaScript and Speed Up Your Pages
Unused JavaScript costs download and processing time on every visit. Learn how to measure it, find its source and remove or delay it without…
Aug 19, 2026 · 8 min readReverse DNS and PTR Records for Email: What You Need to Know
Mail servers without matching reverse DNS are treated as suspicious. Learn what PTR records are, who controls them, and how to check forward-confirmed rDNS.
Aug 19, 2026 · 8 min readWordPress Security Checklist: 20 Steps That Actually Matter
A practical WordPress security checklist for owners and agencies: updates, plugins, logins, backups, HTTPS, headers and monitoring, ordered by real impact.
Aug 18, 2026 · 8 min readSEO-Friendly URLs: How to Structure Them the Right Way
How to create short, readable, SEO-friendly URLs: words, hyphens, folders and parameters to use or avoid, and when changing existing URLs is worth the…
Aug 18, 2026 · 8 min readHow to Eliminate Render-Blocking Resources on Your Website
Render-blocking CSS and JavaScript keep the screen blank while files download. Learn how to find them, which to defer, which to inline and how…
Aug 18, 2026 · 8 min readWordPress Emails Going to Spam or Not Sending? How to Fix It
WordPress contact form and WooCommerce e-mails often fail or land in spam. Learn why PHP mail is the problem and how to send through…