SSL guides & resources
SSL guides and resources for Bangladesh
Clear guidance for choosing a certificate, preparing an office purchase and keeping HTTPS working after installation.
Start with your next task
Useful starting points for website owners, IT teams and procurement officers.
Get your first certificate
Prepare website names, purchasing details, CSR and deployment responsibilities.
Read the guide 
Resolve an HTTPS warning
Identify the symptom and gather useful information before requesting help.
Read the guide Choose the coverage your website needs
Compare exact names, then check the product’s included coverage.
One domain and its subdomains
Understand wildcard matching and deeper-level exclusions.
Explore wildcard SSL 
Several domain names
Review included names, SAN limits and extra-name pricing.
Explore multi-domain SSL Choose the right identity checks
Validation and coverage answer different questions.
Organization validation
For purchases requiring verified organization details.
Explore OV certificates 
Extended validation
Understand the additional organization checks and discuss eligible options.
Explore EV guidance Installation and renewal guidance
Keep someone responsible for the work after purchase.
Install and verify
Prepare your hosting platform, issued files and deployment checks.
Read installation guidance 
Replace or renew
Check certificate expiry, remaining plan coverage and next steps.
Read renewal guidance Coordinate ongoing SSL tasks
Discuss ownership, validation, deployment and an agreed support scope.
Explore Managed SSL More ways to find the right SSL
Choose a detailed answer, compare current products or prepare a quotation.
Installation & Renewal Guidance
Plan deployment, replacement and renewal.
Explore lifecycle guidance 
Buying for a Bangladesh Government office?
Use the Government Desk for public-sector requirements or the Enterprise page for business purchasing. Bring the specification, public domain names and requested date to the quotation team.
Request a quotation Make the right SSL buying decision
Understand cost, coverage and certificate expiry before choosing a product.
Free vs paid SSL
Choose the certificate and support arrangement your website needs, then compare the full cost of keeping HTTPS working.
Read the guide Subscription and certificate expiry
Keep two dates in your records: when the commercial plan ends and when the certificate currently installed on your server expires.
Read the guide Wildcard vs multi-domain SSL
Write down the exact names first. A wildcard pattern and a list of separate domain names solve different coverage needs.
Read the guide Validate domains and manage keys
Domain validation checklist
Prepare DNS, email or HTTP validation for your SSL certificate. Check domain access, challenge records and common failures before requesting issuance.
Read the guide CSR & private key guide
Understand the difference between a CSR, certificate and private key. Prepare certificate requests and agree a secure installation and handover process.
Read the guide CAA & issuance errors
Understand how CAA controls certificate issuance. Check inherited records, issuer identifiers, DNS errors and wildcard policy without disrupting other services.
Read the guide Install and troubleshoot on your platform
cPanel SSL installation
Install a paid SSL certificate in cPanel, check AutoSSL settings and verify the live domain, certificate chain and renewal responsibility.
Read the guide WordPress HTTPS & mixed content
Move WordPress to HTTPS safely. Check the server certificate, site URLs, mixed content, redirects and important customer journeys after the change.
Read the guide Cloudflare origin SSL
Understand Cloudflare’s two TLS connections. Check origin certificate requirements, browser trust and safe troubleshooting before changing encryption mode.
Read the guide NGINX SSL installation
Prepare an NGINX certificate change, check the full chain and matching key, validate configuration and verify each public hostname after reload.
Read the guide Apache SSL installation
Plan an Apache HTTPS certificate change. Check virtual hosts, certificate files, private-key access, configuration testing and live verification.
Read the guide Windows IIS SSL installation
Check the Windows certificate store, private-key association and IIS HTTPS bindings. Plan renewal and verify the certificate served by each website.
Read the guide Plan ecommerce, signing and business security
SSL for ecommerce
Choose SSL coverage for your Bangladesh online shop. Review checkout domains, validation, renewals and support without confusing HTTPS with PCI compliance.
Read the guide SSL & website security
Understand what SSL protects and where a firewall, malware response, patching and tested backups fit into a Bangladesh website’s security plan.
Read the guide Code signing vs website SSL
Compare software signing and website TLS certificates. Prepare publisher validation, key storage and deployment requirements before requesting a quotation.
Read the guide S/MIME, email TLS & BIMI
Separate email message signing, transport encryption and inbox branding. Prepare mailbox, device and recipient requirements before choosing certificates.
Read the guide Security licensing checklist
Inventory existing security subscriptions before buying more. Compare users, devices, workloads and service responsibilities in a Bangladesh business quotation.
Read the guide Common questions
Which guide should I read first?
For terminology, start with Understanding SSL / TLS. If you already know the website names, use the comparison page and the getting-started checklist.
Where are product-specific prices and technical details?
Use the live catalogue and selected product page for current BDT totals, available terms, coverage and validation. These guides explain how to assess those options.
Can I use these guides for an existing order?
Yes. Use the installation, renewal and troubleshooting guidance alongside the records available through My Account. An order reference helps the team identify the correct purchase.