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    A Secure Web Development Checklist You Can Actually Follow

    Written by Khalid NamraPublished: 13 September 2026Updated: 16 September 20268 min read
    A Secure Web Development Checklist You Can Actually Follow

    In three lines

    • Most websites are not broken into by sophisticated attackers.
    • Validation on the browser is a convenience for the user, never a control.
    • Administrative access is the shortest path to a full compromise.

    Most websites are not broken into by sophisticated attackers. They are broken into through an outdated plugin, a form that trusts its input, an admin account with a reused password, or a server that still exposes a database port to the internet. A short list of enforced habits removes most of that risk.

    Treat every input as hostile

    Validation on the browser is a convenience for the user, never a control. Every field must be validated again on the server against an explicit allow-list: expected type, length, format and range. Database access goes through parameterised queries, and user-supplied HTML is escaped on output rather than cleaned on input.

    • Parameterised queries everywhere — no string-built SQL
    • File uploads limited by type, size and stored outside the web root
    • Rate limiting on login, search and contact endpoints

    Lock the admin door first

    Administrative access is the shortest path to a full compromise. Enforce multi-factor authentication for every privileged account, remove accounts the day a person leaves, and give editors editor rights instead of administrator rights because it is faster to set up.

    Configure the headers and the transport

    HTTPS everywhere with HSTS, a content security policy that names the sources you actually load, cookies marked Secure, HttpOnly and SameSite, and referrer and frame policies set deliberately. These are configuration lines, not projects, and they neutralise entire classes of attack.

    Patch on a schedule, not on an incident

    Dependencies age badly. A monthly patch window, an automated dependency scan in the build pipeline, and a written owner for each site turn updates into routine maintenance rather than emergency work at midnight.

    The practical takeaway

    Validate on the server, enforce MFA on admin accounts, set your security headers, and patch on a fixed schedule — that removes the majority of practical web risk.

    Related RASED services

    Official references

    Written by Khalid Namra

    Founder & CEO, RASED Solutions — engineering lead of RASED Solutions

    Khalid Namra building software since 2015 and leads the engineering and security teams behind RASED Solutions in Riyadh.