I need you to build a fully responsive website from scratch using clean, well-commented HTML, CSS, and JavaScript. The look and feel must stay professional and corporate, with crisp typography, balanced white space, and a layout that adapts perfectly to any screen size. Once the core build is in place, please integrate the three essentials—an SEO plugin, a performance-optimisation plugin, and a security plugin—so the site launches fast, ranks well, and stays protected. No page should score below industry-standard metrics for speed or accessibility. Parallel to the build, I want measurable authority links through genuine guest posting. That means manual outreach, original content tailored to each host site, and live URLs on real, reputable domains (no PBNs or sponsored-only farms). Share placement proofs as they go live so I can track gains in Domain Rating and organic traffic. Deliverables • Fully tested, mobile-first website coded in vanilla HTML, CSS, JS • Installed and configured SEO, performance, and security plugins • At least X verified guest post placements on sites with comparable or higher authority (let’s confirm the exact number before kickoff) • A short handover document covering code structure, plugin settings, and backlink reports If anything in the brief is unclear, flag it early so we stay on schedule and on spec.