Perfect Forward Secrecy
Perfect forward secrecy explained: how ephemeral keys stop recorded HTTPS traffic from being decrypted later, even if the server's private key is leaked.
Knowledgebase
Clear answers to common hosting questions, written by our editors.
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By Maarten Soetens
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Database Size Limits
A database size limit is the most data a hosting plan allows a database to hold. Learn how hosts apply limits and what makes databases grow.
By Maarten Soetens
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HTTP Security Headers
HTTP security headers are instructions sent with each page. Learn what X-Frame-Options, X-Content-Type-Options, Referrer-Policy and Permissions-Policy do.
By Maarten Soetens
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DNS Zones and Zone Files
What is a DNS zone file? Learn what a zone is, how a zone file is laid out with $ORIGIN, records and the SOA record, and how zones differ from domains.
By Maarten Soetens
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Content Security Policy (CSP)
A content security policy tells the browser which scripts, styles and resources a page may load. Learn how CSP limits cross-site scripting and report-only mode.
By Maarten Soetens
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What Is PCI DSS?
What is PCI DSS? It is the security standard for any business that handles card payments. Learn who must comply and the main requirement areas.
By Maarten Soetens
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Domain Hijacking Explained
Domain hijacking is the unauthorized takeover of a domain, often by moving it to another registrar. Learn the common methods and protective steps.
By Maarten Soetens
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Granular vs Full Restore
A granular restore recovers single files, databases or emails without rolling back a whole site. Learn how it differs from a full restore and when each fits.
By Maarten Soetens
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Gateway vs Processor vs Merchant
Payment gateway vs payment processor vs merchant account: what each one does, how they connect in a card payment, and why providers often bundle them.
By Maarten Soetens
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What Is Server Hardening
Server hardening reduces the attack surface of a server by removing unused services, closing open ports and limiting access. Here is how the idea works.
By Maarten Soetens
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Admin, Reseller and User Levels
A control panel reseller account lets one person manage a group of hosting accounts. Learn how admin, reseller and user access levels and packages work.
By Maarten Soetens
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Dedicated vs Shared IP Address
Dedicated IP vs shared IP explains how shared hosting places many sites on one address and when a dedicated IP is worth having for a website.
By Maarten Soetens