Complete Technical, On-Page, Off-Page & Mobile-First SEO Strategy for 200+ Calculator website Pages

We are seeking a data-driven SEO Specialist for myfavcalculator.com, a custom utility platform built on HTML, CSS, JavaScript, and basic PHP featuring 200+ interactive calculator pages.

As a fresh domain, our goal is to build topical authority, solve dynamic crawlability/indexing issues, enhance thin content with educational frameworks, build clean white-hat backlink authority, and deliver an exceptional mobile experience.

CRITICAL DIRECTIVE — PRESERVE CODE & FUNCTIONALITY

Zero Tolerance Policy for Broken Logic: All SEO optimizations, metadata additions, or layout tweaks must NEVER modify, alter, or break the underlying JavaScript calculation logic, PHP functions, or custom CSS styling rules. All calculators must remain 100% functional and visually intact.

SPECIAL ISSUE: Google Search Console Impression Drop

Our website recently experienced a sudden drop from initial clicks/impressions down to 0 impressions in Google Search Console within a week. We require candidates to confirm they can diagnose and fix this indexing/trust drop as part of the initial phase.

Scope of Work

1. Technical SEO, URL Routing & Code Performance

Code Preservation: Absolutely no changes to interactive JS calculation scripts or layout CSS.

301 Redirect Mapping & URL Hierarchy: Any permalink/slug adjustments must resolve via server-level 301 permanent redirects to destination URLs with zero broken internal links, redirect loops, or canonical errors.

Code Execution Performance: Optimize DOM size and CSS/JS execution speeds without affecting calculation dynamic processing.

Structured Data (JSON-LD Schema): Implement dynamic, page-specific schemas across 200+ tools:

SoftwareApplication / WebApplication

FAQPage (enabling expandable SERP rich results)

HowTo & BreadcrumbList

Crawlability & Indexing: Audit GSC, optimize XML sitemaps, clean robots.txt, and verify dynamic JS rendering for search bots.

2. Mobile-First SEO & Responsive UX Optimization

Over 70% of calculator queries originate on mobile devices (Google Mobile-First Indexing):

Mobile Core Web Vitals: Optimize site resources to pass INP (Interaction to Next Paint), LCP, and CLS on mobile networks.

Touch Target & UX Integrity: Ensure interactive buttons, inputs, sliders, and dropdowns maintain touch targets of at least 48x48px with zero mis-clicks.

Layout Shift Prevention: Eliminate horizontal scrolling and dynamic jumps when calculation outputs display on mobile viewports.

3. On-Page SEO & Content Architecture

To overcome "thin content" flags, each page requires a humanized, structured content layout:

Formulas & Logic Breakdown: Clear mathematical formula definitions formatted via clean HTML/CSS/LaTeX.

Step-by-Step Instructions ("How to Use"): Actionable, numbered user guides targeting Google's Featured Snippets.

Worked Practical Examples: 1–2 real-world scenarios showing inputs and expected outputs.

Deep-Dive Educational Copy: 400–700 words of strictly humanized contextual content (edge cases, benchmarks, unit conversions).

Comprehensive FAQ Section: 10–20 relevant, high-value Q&As per page mapped with JSON-LD FAQPage schema.

Solid Keyword Research & Anti-Cannibalization: Map unique titles, meta descriptions, and H1/H2/H3 hierarchies across all 200+ pages to prevent cannibalization and improve keyword rankings.

Silo Internal Linking: Categorical linking structures connecting related tools (e.g., Finance, Health, Math) to pass PageRank efficiently.

4. Off-Page SEO & Authority Building

White-Hat Outreach: Pitch tools to legitimate resource pages, educational hubs, and niche directories.

Unlinked Brand Mentions: Secure contextual link placements on formula and tool discussions.

Strict Quality Controls: 100% White-Hat only. Absolutely no PBNs, automated link networks, web 2.0 spam, or directory blast packages.

5. Auditing, Setup & Reporting

Technical audit using Screaming Frog, Ahrefs, SEMrush, or equivalent tools.

GSC and GA4 auditing and verification.

10–60 day milestone roadmap with deliverable tracking and ranking reports.

Budget & Scope Flexibility

Budget Limit: Strictly capped between $6 – $11 USD.

Scope Adjustments: If your proposed cost for the full scope exceeds this limit, you may opt out of specific non-essential deliverables (e.g., reducing off-page outreach), but you must explicitly state in your bid what items you are opting out of.

How to Apply

To filter out automated bot proposals, please include the following in your application:

Verification Keyword: State your primary SEO tool (e.g., Ahrefs, Semrush, Screaming Frog) at the very top of your bid.

Portfolio / Case Studies: Share 1–2 examples of tool websites, web apps, or high-page-count sites you have optimized.

GSC Drop Confirmation: Confirm that you can diagnose and resolve our current 0-impression GSC issue.

Initial Observation: Provide 1 quick insight or suggestion regarding myfavcalculator.com.

Proposed Action Plan: Outline your deliverable breakdown within our budget limit (and mention any scope items you choose to opt out of).