What is SiteScore (and why measuring website performance is just the beginning)
Your website’s performance shapes how customers experience your brand and how effectively your business grows.
SiteScore is Granite 5’s intelligent benchmarking tool that measures your site’s speed, SEO, security, and competitiveness using trusted data from Google PageSpeed, Moz, WHOIS, and Serpstat.
It gives you a clear picture of your website’s health and shows where to improve. But measurement is only the first step, through our Digital Growth Service, those insights become a roadmap for lasting digital success.
Your website plays a central role in how people see and interact with your brand. But many organisations aren’t sure how well it’s really performing, or how to respond when it falls short.
That’s the challenge SiteScore was built to solve.
SiteScore – The new benchmark for digital performance
SiteScore is designed to assess a website’s overall performance using trusted third-party data sources Google PageSpeed, Moz, WHOIS, and Serpstat.
By consolidating complex data into a single, clear score, SiteScore provides instant insight into a site’s health and effectiveness. It highlights what’s working well and, crucially, where optimisation will have the most impact.
The health of your website: your most valuable digital asset
The true measure of a healthy website lies in its performance: speed, security, usability, and its ability to turn visitors into customers.
Just like a physical asset, your website requires regular maintenance to perform at its best. Over time, outdated code, poor hosting, unoptimised images, and neglected SEO can all degrade its health.
An unhealthy site may still look fine on the surface, but underneath it can be slow, insecure, or invisible to search engines, quietly eroding traffic, conversions, and trust.
Why optimisation matters
- Speed builds trust: Faster page load times increase conversion rates.
- Visibility drives opportunity: Google’s algorithms reward well-optimised, technically sound websites.
- Experience influences loyalty: Smooth, intuitive journeys keep users coming back, and converting.
Healthy websites don’t happen by accident. They’re built through regular measurement, analysis, and strategic improvement, and that process begins with SiteScore.
The data behind SiteScore
To deliver a complete picture of website health, SiteScore draws on four of the industry’s most respected platforms. Each one offers a unique lens on performance, and together they create a balanced, data-driven view of digital effectiveness.
1. Google PageSpeed Insights
What it is:
Google PageSpeed Insights is a diagnostic tool that evaluates the technical performance of a web page and its loading experience. It’s powered by Lighthouse, Google’s open-source auditing tool, and provides two types of data; Lab Data (simulated tests) and Field Data (real-world user experiences).
What it measures:
It analyses your website using Google’s Core Web Vitals, a set of metrics that reflect how users perceive speed and stability:
- Largest Contentful Paint (LCP): How quickly the main content appears.
- First Input Delay (FID): How responsive the page feels when users interact.
- Cumulative Layout Shift (CLS): How visually stable the layout remains as elements load.
- It also reviews caching, image optimisation, JavaScript execution time, and server response efficiency.
Why it matters:
PageSpeed is a proxy for user satisfaction and SEO performance. Faster sites rank better, retain visitors longer, and convert more effectively. In a mobile-first world, PageSpeed is a direct reflection of how much respect a brand shows for its users’ time.
2. Moz
What it is:
Moz is one of the most established and trusted SEO platforms, used by digital professionals to measure how effectively a site can earn visibility in search results. It tracks the strength of your domain, backlink profile, and keyword performance, all critical signals of authority and trust.
What it measures:
- Domain Authority (DA): Predicts how likely a website is to rank compared to competitors.
- Page Authority (PA): Evaluates individual page strength within a site.
- Spam Score: Detects potentially harmful backlinks or patterns that may impact credibility.
- Link Profile Quality: Assesses the relevance and authority of external sites linking to you.
- Keyword Presence: Identifies how well your content aligns with search intent.
Why it matters:
Moz exposes the invisible layer of performance that underpins organic visibility. A site may look polished and professional, but if search engines don’t see it as trustworthy or relevant, it will struggle to be found. Moz data helps identify where content, authority, and link-building strategies can strengthen visibility, turning technical improvement into commercial opportunity.
3. WHOIS
What it is:
WHOIS is the global directory of domain ownership, providing key data on who registered a domain, when it was created, and whether it is valid and secure.
What it measures:
- Domain legitimacy: Confirms verified ownership and accurate registration.
- SSL and security: Highlights whether a domain uses HTTPS and has a valid certificate.
- Renewal and expiry details: Ensures the site’s foundation is active and not at risk of downtime.
- Registrar and location data: Provides insight into domain management and hosting transparency.
Why it matters:
Domain management is often overlooked, yet it’s fundamental to brand trust and security. A missing SSL certificate or expired registration can instantly undermine confidence, impact search rankings, and leave a site vulnerable. WHOIS data ensures your website’s technical foundation is sound, a small detail with big reputational implications.
4. Serpstat
What it is:
Serpstat is an advanced SEO and digital marketing platform that provides competitive intelligence and growth insights. It tracks how your site performs for key search terms and how it compares with industry peers.
What it measures:
- Keyword rankings and trends: How visible your content is for targeted search queries.
- Search visibility score: The share of search traffic your site captures compared to competitors.
- Backlink analysis: Identifies new, lost, and high-value inbound links.
- Competitor comparison: Highlights where rivals outperform you and where opportunities exist.
- Technical site audit: Reviews site structure, broken links, and indexing efficiency.
Why it matters:
Serpstat bridges the gap between analytics and strategy. It doesn’t just show where you are, it shows where you could be. By identifying patterns in ranking shifts and competitor behaviour, businesses can prioritise actions that deliver measurable growth. In other words, it transforms SEO from a tactical effort into a strategic advantage.
Why measuring performance is only the first step
Measurement is critical, but it’s just the start. Knowing your SiteScore tells you where you are today; what you do with that knowledge determines where you’ll be tomorrow.
At Granite 5, SiteScore forms the foundation of our Digital Growth Service, a continuous process of optimisation that blends insight, strategy, and execution.
Once we’ve benchmarked your site, we work with you to translate those insights into measurable growth. That means identifying the technical, creative, and strategic opportunities that will deliver the biggest impact, and then acting on them through data-led digital improvements.
Because digital performance isn’t static. It’s something that evolves and grows through consistent attention, expertise, and iteration.
See how your website really performs.
Get your SiteScore and uncover the opportunities to improve performance, visibility, and growth.
FAQs
SiteScore is Granite 5’s website benchmarking tool that analyses and scores overall site performance using data from industry-leading platforms. It highlights strengths, weaknesses, and opportunities for improvement across key areas including speed, SEO, security, and competitiveness.
Without measurement, you’re guessing. Regularly analysing your site helps identify technical issues, uncover growth opportunities, and ensure your digital investment continues to deliver results. Measurement provides the foundation for smarter, evidence-based decision-making.
SiteScore draws on four respected data sources:
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- Google PageSpeed – assesses speed, responsiveness, and Core Web Vitals.
- Moz – analyses SEO strength, domain authority, and link quality.
- WHOIS – checks domain legitimacy, SSL security, and registration health.
- Serpstat – measures keyword visibility, competitive position, and growth opportunities.
Together, they provide a complete view of your site’s health and performance.
Websites evolve constantly, from content updates to algorithm changes and plugin updates. Checking your SiteScore regularly (at least quarterly) helps track improvement, catch emerging issues early, and maintain peak performance over time.
Your SiteScore provides a benchmark, the starting point for growth. From there, Granite 5’s Digital Growth Service helps you translate those insights into action through a continuous improvement plan focused on optimisation, UX, SEO, and measurable results.
Yes. SiteScore uses external data sources such as Serpstat and Moz to provide competitive insights, helping you see how your website stacks up in visibility, authority, and search performance.
A strong SiteScore reflects a fast, secure, visible, and user-friendly website, all of which improve search rankings, enhance customer trust, and increase conversion rates. It’s a signal of digital maturity and long-term competitiveness.
Performance and growth are directly connected. A well-optimised site converts more visitors, ranks higher, and builds stronger engagement. SiteScore identifies where improvements will have the biggest commercial impact, helping you focus investment where it drives results.
Most online tools focus on one area, speed, SEO, or security, in isolation. SiteScore combines trusted data sources into a single, holistic view, interpreted through Granite 5’s expertise. It’s not just analysis; it’s a framework for ongoing digital performance improvement.
Start by discovering your SiteScore. You’ll receive a clear, data-driven overview of your site’s performance, plus recommendations for improvement. From there, our team can help you build and deliver a strategy for measurable, sustainable digital growth.
