90% off every service for founding clients

See prices
Hartkeep

[HK/01]Independent technical studio— UK → Worldwide

We build it.We automate it.We keep it safe.

Hartkeep designs and builds websites and online stores, automates your marketing and operations, makes your data make sense and brings AI into your business — then engineers the security that protects all of it.

Browse the catalogueBook a free 30-minute call
Founding client pricing on every service
−90%Founding client pricing on every service
Fixed-price services in our catalogue
35Fixed-price services in our catalogue
Reply time to new enquiries
1 dayReply time to new enquiries
UK-based, working with clients worldwide
UK → WorldUK-based, working with clients worldwide

Platforms and tools we work with: Next.js, Shopify, Klaviyo, HubSpot, Google Analytics 4, Server-side GTM, Meta Conversions API, BigQuery, n8n, Make, Zapier, Microsoft Sentinel, Splunk, Elastic, CrowdStrike, Sigma, MITRE ATT&CK, Tines, Model Context Protocol, Claude, OpenAI, Cloudflare, Vercel

01What we do

One partner for the technical side of your business.

From your first website to detection engineering for your security team — clear scope, fixed prices and plain English throughout.

01 / Build

Websites & e-commerce

Custom-coded websites and online stores that load fast, look sharp and get results.

From ≈US$135
02 / Grow

Email automation

Automated email journeys that welcome, convert and win back customers around the clock.

From ≈US$66
03 / Grow

Ad intelligence

Know what's working — for you and your competitors — before you spend another pound.

From ≈US$66
04 / Measure

Tracking & analytics

Accurate, privacy-aware tracking and dashboards that show where revenue really comes from.

From ≈US$66
05 / Automate

Integrations

Connect your tools so information flows automatically. No more copy and paste.

From ≈US$66
06 / Defend

Security

Threat intelligence, detection engineering, threat hunting and security automation — plus advice on any security matter.

From ≈US$20/session
07 / Evolve

AI

Get your website ready for AI agents and put AI to work inside your systems — safely.

From ≈US$92
08 / Not sure?

Talk it through, free.

Tell us what you're trying to achieve. We'll recommend the right services — or tell you honestly if you don't need us.

Free 30-minute call
02Launch offer

90% off every service, for our founding clients.

Hartkeep is newly launched. Rather than spend on advertising, we're investing in our first clients: every service in the catalogue is 90% off our standard rates until 31 March 2027 — same scope, same standards, same care.

  • HK-WEB-02Business website≈US$3,955≈US$395
  • HK-EML-01Email marketing foundations≈US$1,730≈US$175
  • HK-SEC-04Detection engineering sprint≈US$4,625≈US$460
  • HK-AI-02Agent-ready website≈US$1,595≈US$160

Ends 31 March 2027· 167 days left

See every priceOffer terms

Standard rates apply after the launch period. Monthly plans keep launch pricing for their first 3 months. Business clients only.

03Catalogue

Fixed prices, published openly.

Every service has a clear scope and a fixed price. Add services to build a quote, then send it to us in one click.

  • HK-WEB-022–3 weeks
    ≈US$3,955≈US$395
  • HK-SHP-012–3 weeks
    ≈US$2,615≈US$260
  • HK-EML-011–2 weeks
    ≈US$1,730≈US$175
  • HK-ANL-021–2 weeks
    ≈US$1,730≈US$175
  • HK-SEC-042–3 weeks
    ≈US$4,625≈US$460
  • HK-AI-021–2 weeks
    ≈US$1,595≈US$160

USD prices are indicative conversions. All work is quoted and invoiced in GBP.

Showing 6 of 35 services

View the full catalogue
04Security engineering

Security that's engineered — not paperwork.

We do the hands-on technical work that actually stops attackers. No compliance checklists, no regulatory theatre — just detection, hunting, intelligence and automation that hold up against real adversaries.

  • 01Threat intelligenceKnow who is likely to target you, how they operate, and what that means for your defences.
  • 02Detection engineeringHigh-fidelity detections for your SIEM and EDR — written as code, tested and tuned.
  • 03Threat huntingProactive hunts for attackers your tools have missed. Every hunt leaves new detections behind.
  • 04Security automationPlaybooks that triage, enrich and contain in minutes — with humans approving anything disruptive.
Explore security services
detections/office-spawns-powershell.ymlSigma
title: Office application spawns PowerShell download cradleid: hk-det-0142status: productionlogsource:  category: process_creation  product: windowsdetection:  parent:    ParentImage|endswith:      - '\WINWORD.EXE'      - '\EXCEL.EXE'      - '\OUTLOOK.EXE'  child:    Image|endswith: '\powershell.exe'    CommandLine|contains:      - 'DownloadString'      - 'Invoke-WebRequest'  condition: parent and childfalsepositives:  - Signed internal macros (allow-listed)level: hightags:  - attack.execution  - attack.t1059.001  - attack.t1566.001
ci / detection-testsPassed
$ detect test hk-det-0142 --emulate T1059.001✓ true positives       3 / 3✓ false positives      0 in 30-day baseline→ compiled: sentinel (kql) · splunk (spl) · elastic (esql)→ runbook: runbooks/hk-det-0142.md

Illustrative example. Detection-as-code: version-controlled, mapped to MITRE ATT&CK and tested against emulated attacks before it ships.

Consultation · any security matterA suspicious login, a supplier questionnaire, a tooling decision or a second opinion mid-incident — get a straight answer from a security engineer.≈US$20/sessionBook
05AI integration

Ready for the agentic web — safely.

AI is changing how customers find businesses and how work gets done. We help you take advantage of it without taking on risks you can't see.

A

Agent-ready websites

AI assistants increasingly research, compare and buy on people's behalf. We make your website legible to them — llms.txt, structured data, machine-readable catalogues and agent-friendly flows.

B

AI inside your workflows

Add AI to the automations and features you already have: sort enquiries, draft replies, summarise calls and extract data from documents — with a human approving what matters.

C

AI risk & security

Every AI feature is a new attack surface. We test for prompt injection, data leakage and over-permissioned agents before your customers — or attackers — find the gaps.

We practise what we preach

This website is agent-ready. AI assistants can read our full catalogue, with live prices, in a format built for them.

Explore AI services/llms.txt/catalogue.json
terminal — agent sessionLive
$ curl -s https://hartkeep.com/llms.txt | head -3# Hartkeep > Independent technical studio: websites, automation, analytics, AI and security.$ curl -s https://hartkeep.com/catalogue.json | jq '.services | length'35→ agent: "Hartkeep offers 35 fixed-price services, priced in GBP."
06How it works

From first call to handover, in five clear steps.

  1. 01

    Free consultation

    A 30-minute call to understand your goals. No obligation, no jargon.

  2. 02

    Fixed quote

    A clear scope and a fixed price from our catalogue — you know the cost before we start.

  3. 03

    Private agreement

    You receive a private link to review and accept our terms online. It takes about five minutes.

  4. 04

    Build & deliver

    We get to work, with regular updates in plain English and nothing hidden.

  5. 05

    Handover

    You own what we build, with documentation, training and support included.

Fixed, published prices

No hourly meters and no surprise invoices.

Plain English

We explain what we're doing and why — without the jargon.

You own it

Code, accounts and data stay in your name. No lock-in.

Secure by default

Security is built into everything we make, not bolted on.

Direct, hands-on work

The person you speak to is the person doing the work.

07Questions

Straight answers.

Anything else? Ask us directly — we reply within one business day.

01I'm not technical — is that a problem?

Not at all. Most of our clients aren't. We explain everything in plain English, handle the technical work end to end, and leave you with clear documentation.

02Why 90% off? What's the catch?

There isn't one. We're newly launched and want to build long-term relationships with great first clients. Launch-rate work gets exactly the same scope, standards and care as standard-rate work. In return, we'd value your feedback — and, if you're happy, a recommendation.

03How long does the launch offer last?

Until 31 March 2027, or until we reach capacity for founding clients — whichever comes first. Monthly plans keep the launch rate for their first 3 months. The full offer terms are published on this site.

04Do you work with businesses outside the UK?

Yes. We're based in the UK and work remotely with businesses worldwide. Prices are in pounds sterling, with indicative US dollar and euro conversions in the catalogue.

05How do payments and contracts work?

Once we've agreed the scope, you'll receive a private link to review and accept our terms of business online. Launch-rate projects are paid upfront and monthly plans are billed monthly in advance. Third-party costs such as platform subscriptions, apps, ad spend or AI usage are paid directly by you.

06What security work do you do — and not do?

Hands-on technical security: threat intelligence, detection engineering, threat hunting, security automation, hardening and AI security testing — plus consultation on any security question. We don't provide compliance certification, audits or regulatory (GRC) advice.

07Who owns the work?

You do. Once paid in full, the code, content and accounts we create for you are yours. We keep our own reusable tools and know-how.

08Do you work with individuals?

We work with businesses and organisations of every size — from sole traders and start-ups to established companies — but we don't take on personal, non-business projects.

Start a project

Tell us what you need.

A free 30-minute call, a fixed price, and launch pricing locked in for your project.

Start a projectBrowse the catalogue

Or email hello@hartkeep.com