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For Agencies & Freelancers

One dashboard. Every client. No more surprises.

Stop waiting for a client email to find out something has gone wrong. SiteVitals gives you a real-time view across your entire portfolio-uptime, performance, SEO health, domain and SSL status-all in one place.

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From a team trusted by

NHS BBC Two Aardman National Charities Award-Winning Agencies

We Know This World

We have spent decades being the agency behind the agency.

SiteVitals was built by a web development agency - and not just any agency. For much of the last two decades, we were the outsourced technical team that bigger design agencies came to when they needed something built properly. Back when “digital” was a new frontier, we helped studios and creative agencies build their digital departments, take on web clients, and deliver projects they could not have done alone.

We have been in your position. We know what it feels like to be responsible for a client’s website when something goes wrong at 5pm on a Friday. We know the particular stress of being the person who has to call a client to say their site is down - and we know there is almost nothing worse than finding out from the client themselves.

“We built SiteVitals partly for ourselves. The monitoring we always wished we had, packaged up for everyone who manages websites for a living.”

Starting out over 25 years ago meant learning the whole web - not just one corner of it. DNS, hosting, domains, performance, security, front end, back end: all of it. That breadth is rare now, and it is baked into everything SiteVitals checks. The problems that fall between the cracks of modern specialisations are often the ones that cause the most damage to client relationships. SiteVitals catches them.

25+ years building for agencies

We were the technical outsource for design agencies across the UK long before in-house developers became standard. We understand agency workflows, client relationships, and the pressure of being accountable for someone else’s website.

Sites handling 2.4 million daily visitors

Our portfolio spans household names, national charities, BBC Two, NHS, and Aardman alongside hundreds of smaller businesses. We have seen what scale looks like - and what happens when monitoring is not in place.

Built from real problems, not hypotheticals

Every feature in SiteVitals exists because we saw the problem it prevents play out in real life - often more than once. This is not a tool built from a spec sheet. It is built from experience.

Live Demo

See SiteVitals in action

No screenshots here. This is a live dashboard showing how you can manage the health metrics of multiple pages in a single quick to reference dashboard, with any pending risks clearly shown.

sitevitals.co.uk/agency-preview

Click to play with the Live Dashboard

A Tool That Pays For Itself

SiteVitals does not just protect your clients. It gives you something to talk about every month.

This is the part that agencies and freelancers tell us they did not expect: SiteVitals is not just a monitoring tool. It is a recurring pipeline for work. Because websites are never finished. They always have something that could be better - and SiteVitals surfaces it, continuously, automatically.

Instead of waiting for a client to notice a problem and call you, you get to be the one who spots it first. That is a very different conversation to have.

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Performance dips become optimisation conversations

Core Web Vitals slip after a content update. Page load times creep up. SiteVitals flags it - and you have a genuine, data-backed reason to go back to your client with a proposal.

“We noticed your performance scores have dipped since the last update - here’s what we can do about it.”

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SSL and domain alerts become renewal conversations

A nearly-lapsed SSL or an approaching domain renewal is not a crisis - it is a prompt. You reach out proactively, client feels looked after, job gets done. Everyone wins.

Being the person who spots it before it becomes a problem is worth far more than being the person called to fix it after.

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SEO health checks become ongoing retainer work

Technical SEO is not a one-time job. SiteVitals continuously monitors the fundamentals - and with AI search changing the landscape, being technically sound is more important than ever. That is a retainer waiting to happen.

The clients who understand the value of technical SEO are exactly the ones worth keeping close.

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Third-party script failures become dependency audits

When an external font, analytics tool or widget breaks, it can make a site look completely broken - even when the client’s own code is fine. Catching these opens up a wider conversation about dependencies, resilience, and site architecture.

Not every agency looks at this. Those who do tend to be the ones clients stick with.

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Downtime alerts become hosting conversations

Recurring uptime alerts on a client’s site are often a sign of a hosting problem. SiteVitals gives you the data to have that conversation confidently and back it up.

The data is the hard bit. The recommendation is easy once you have it.

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Change Intelligence becomes a monthly check-in

SiteVitals lets clients (or you) log site changes - new plugins, updated content, image swaps - and overlays them against performance data. It makes monthly reporting straightforward, and gives you a clear story to tell.

Clients who see the data tend to understand the work. Clients who understand the work tend to stay.

What You Get

Everything your clients’ sites need someone to be watching for.

A quick overview of what SiteVitals monitors across your portfolio. For a deeper look at how each feature works, see our About page.

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Uptime Monitoring - Free

Around-the-clock checks on every site in your portfolio. If anything goes down, you know within minutes - long before your client does.

Available on the free plan. No excuses not to have it.

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Performance & Core Web Vitals

Continuous tracking of page speed and the Google metrics that affect search rankings. Flags drops before they become a client complaint or a ranking problem.

The daily checks that most agencies only do monthly, if at all.

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SSL Certificate Alerts

Early warning when a certificate is approaching renewal, so you can act before visitors see a “Not Secure” warning in their browser.

A five-minute fix when caught early. A client crisis when it is not.

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Domain Integrity Checks

Monitors domain registration across your entire portfolio and flags renewals well in advance. No more client panics about a domain that nearly lapsed.

We nearly watched a client’s 20-year-old domain disappear. This feature exists because of that.

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Third-Party Script Monitoring

Watches the external scripts and services each site relies on. When a third-party breaks, you know - not the client, not their customers.

The failures most monitoring tools do not even look for.

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Change Intelligence

Log and track changes across client sites - content updates, plugin installs, image swaps - and overlay them against performance data. Turns troubleshooting from guesswork into a clear timeline.

Brilliant for monthly reporting. Even better for those “something broke last week” calls.

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SEO Essentials

Continuous monitoring of the technical SEO fundamentals - the things search engines and AI tools use to understand, trust, and rank your clients’ sites.

As AI search grows, technical SEO is having a real resurgence. Get ahead of it for your clients.

🌐

Multi-Site Dashboard

Your whole portfolio in one view. Filter by status, drill into individual sites, share reports or account access with clients - all from a single login.

The overview that makes managing 20 client sites feel like managing 5.

Two Ways to Work With SiteVitals

Run it yourself, or let your clients in.

There is no one right way to use SiteVitals as an agency or freelancer. Some people want full control. Others prefer to hand the tool to clients and stay in the loop. Both work - and both can work at the same time.

You manage it for your clients

Add all your client sites to one SiteVitals account. Monitor everything from a single dashboard. Share reports or give clients read access so they can see what you see, without you having to translate it every month.

✔ One account, unlimited client sites
✔ Portfolio-wide dashboard view
✔ Share reports directly with clients
✔ Give clients view access to their own site data
✔ You stay in control of the monitoring

Great for: Retainer clients, ongoing support agreements, anyone who wants monitoring to be part of their service offering.

Affiliate option

Your clients manage their own accounts

Prefer to let clients handle their own SiteVitals subscription? Our affiliate programme means you earn a commission when a client signs up through your link - and you can still stay in the loop.

✔ Client creates and manages their own account
✔ You earn affiliate commission on their subscription
✔ Client can share dashboard access with you at any time
✔ You stay informed without carrying the subscription cost
✔ Works well alongside other tools clients already manage

Great for: Clients who want ownership of their own data, one-off projects, or anywhere you want to add value without adding cost to your own account.

A note on account sharing: Whichever approach you take, SiteVitals makes it easy to share access. If you manage client accounts yourself, you can give clients view access to their own site data. If your client runs their own account through our affiliate programme, they can share access with you so you always have the context you need. No duplicate work, no awkward handovers - just the right people seeing the right information.

Beyond your own sites

Know when the market is moving,
not just when your client's site is.

One of the quieter advantages of continuous change monitoring is that it works on any public URL - including your clients' competitors. When a rival brand quietly repositions their homepage, shifts their service copy, or starts targeting a different set of keywords, you'll see it. Not because you were watching, but because SiteVitals was.

"Being the agency that notices a competitor has pivoted before your client does is a very different conversation than the one where you're catching up."

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Content and keyword drift

Track when a competitor's page shifts its semantic focus - a quiet signal that their strategy is changing before it's visible in rankings.

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New scripts and third parties

Third-party dependency fingerprinting alerts you when a competitor adds a new tool, ad network, or analytics platform to their pages.

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Structural and messaging changes

Headline rewrites, new CTAs, revised service descriptions - logged with timestamps so you can see exactly when the change was made.

This isn't surveillance - it's market awareness. Every page you're tracking is publicly accessible. SiteVitals simply means you don't have to visit them manually to know something has changed. Add a competitor's homepage alongside your client's, and the same monitoring that protects your client's site starts informing their strategy.

⚙ The technical bit

• Weighted Change Index (Jaccard Similarity + Levenshtein distance) scores the magnitude of any content shift
• Keyword drift detection tracks the semantic focus of tracked pages over time
• Headers and footers stripped before analysis - only body copy is scored, reducing noise
• Structural change history logs H1, title, and heading changes with precise timestamps

Pricing

Accessible pricing.
Because that was always the point.

Some enterprise hosting platforms offer similar monitoring - but only to clients on plans costing hundreds of pounds a month, with monitoring charged on top at an undefined extra cost. SiteVitals is independent, built by a small and agile team without big overheads, and priced so that every business can afford it - not just the ones on enterprise contracts.

Uptime monitoring is free. Always. Paid plans start from £2.50 per month for a more detailed picture.

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Interested in the affiliate programme?

If you would rather recommend SiteVitals to your clients than run it yourself, our affiliate programme pays you a commission on every subscription that comes through your link. Your clients manage their own account, choose their own plan, and can share access with you whenever they need to. It is a genuinely low-effort way to add value for clients and earn a little something in the process.

Find out more about the affiliate programme →

One Dashboard.
Every Client Portfolio.

Stop waiting for client emails to find out a site is down. Monitor uptime, SEO, and performance across your entire agency from one real-time view.

Start Your Agency Trial Explore Portfolio Tools

Pricing that makes sense for agencies

One subscription. Your whole team. Your clients too.

SiteVitals monitoring reports are shareable via link - which means anyone you share with can view live data without needing an account. In practice, that means your plan covers your team, your clients, and anyone else who needs visibility. There are no seat limits, no per-user fees, and no awkward conversations about who gets access. You subscribe to monitor sites, not to manage headcount.

🔗 Share via link - no login needed

👥 Unlimited team members

💷 Pay per site, not per person

Questions

Things people often ask us.

If something is not covered here, we are genuinely happy to answer it. We are a small team and we actually respond.

How does SiteVitals help me manage multiple client portfolios?

Instead of checking sites individually, our Agency Dashboard aggregates uptime, SEO, and performance data for every client into a single real-time view, allowing you to spot issues across your entire portfolio in seconds.

Can I use SiteVitals as a value-add for my maintenance packages?

Absolutely. By providing proactive monitoring, you can fix client issues before they even notice them. It turns "I think the site is fine" into "I have the data to prove your site is performing at 100%."

Will monitoring slow down my clients’ websites?

No. SiteVitals uses non-intrusive, lightweight pings and API-based checks (like Google PageSpeed) that do not impact the front-end user experience or server load for your clients.

How can I prove to clients that their site is healthy?

SiteVitals tracks historical performance and uptime. You can use these metrics during monthly check-ins to demonstrate the ongoing value of your maintenance and hosting services.

What happens when a client’s site goes down?

You get an immediate alert via your preferred channel. This allows your team to investigate and resolve the issue-often before the client is even aware there was a problem.

Does it work with different platforms like WordPress, Webflow, or Shopify?

Yes. Since SiteVitals monitors from the "outside-in," it works perfectly with any CMS or platform. You can monitor a diverse portfolio of client sites all from the same dashboard.