Performance & Security

Performance and security, measured.

We find what makes your site slow and fix the cause. We reduce security risk with assessment and hardening, not reassurance.

What is web performance optimization?

Web performance optimization is the work of making pages appear and respond faster for real visitors. It is measured against Core Web Vitals (the Google speed and stability checks). Security hardening reduces the risk attackers can exploit, through assessment, access control, patching and monitoring. Both are re-measured after significant changes.

Illustration of a web page inside a shield, with a padlock at the bottom, a speed gauge with its needle in the orange zone, and motion lines to one side.
A page kept fast and protected: speed on one side, security around it. A generic illustration, not a client project.
01/SERVICES

Everything inside Performance & Security.

Discipline Focus

Performance Engineering

Finding what is actually slow, then fixing the cause rather than the symptom.

  • Diagnosing and fixing slow loading, slow responses and layout jumps, checked on real visits.

    Includes:
    • Core Web Vitals optimization
    • Largest Contentful Paint diagnosis
    • Interaction to Next Paint diagnosis
    • Cumulative Layout Shift elimination
    • Field and lab measurement
  • Speed & Asset Optimization

    Sending less, sending it sooner, and caching what does not need sending again.

    Includes:
    • Speed optimization
    • Performance optimization
    • Image optimization
    • Asset optimization
    • Code optimization
    • Caching
    • CDN implementation
  • Backend & Database Performance

    Server and database work sized for the load your system actually carries.

    Includes:
    • Database optimization
    • Query and index tuning
    • Server optimization
    • Hosting optimization
    • Scalability optimization
Discipline Focus

Security Engineering

Finding the weak spots attackers could use, closing them, and noticing when something changes.

  • A findings report ranked by severity, with a fix plan you can act on.

    Includes:
    • Security audits
    • Vulnerability assessment
    • Dependency and supply-chain review
    • Configuration review
    • Prioritized remediation plan
  • Authentication & Access Control

    Who can sign in, what they can reach, and checking it on the server every time.

    Includes:
    • Secure authentication
    • Role-based access control
    • Two-factor authentication
    • Session and token handling
    • Password and credential policy
  • Application & API Security

    Hardening the parts attackers actually reach: forms and other inputs, APIs and data access.

    Includes:
    • Security hardening
    • API security
    • Database security
    • Input validation and output encoding
    • Security headers and transport configuration
    • SSL implementation
  • Backup, Recovery & Monitoring

    Knowing when something breaks, and being able to restore when it does.

    Includes:
    • Backup and recovery
    • Tested restore procedures
    • Malware cleanup
    • Security monitoring
    • Website uptime monitoring
    • Incident response planning
  • Privacy & Compliance Implementation

    Consent, cookies and data handling built into the site, not just written in a policy.

    Includes:
    • Privacy implementation
    • Cookie implementation and consent management
    • Basic compliance implementation
    • Data retention and deletion handling
02/WHAT YOU GET

What you end up with.

  • Core Web Vitals measured before and after
  • Slow causes found, fixed and re-measured
  • Caching and image plans built for growth
  • Security findings ranked by severity and exposure
  • Logins, access and APIs reviewed and hardened
  • Backups with a tested restore path

A good fit for

  • Sites failing Core Web Vitals in Search Console
  • Stores and lead sites with slow key pages
  • Applications handling customer data with no security review since launch
03/HOW IT WORKS

How the work runs.

  1. Measure

    We start with real visitor data and lab tests, and list what is exposed to attack.

  2. Diagnose

    We trace findings to their causes and rank them by impact and effort.

  3. Remediate

    We fix in priority order, on a staging copy first where one exists, checking each change.

  4. Re-measure

    We repeat the same measurements and compare them with the starting point.

  5. Hold the line

    Budgets, monitoring and release checks stop the next update from quietly undoing the result.

04/COMPARISON

Which service fits the problem?

Each service by the problem it solves and what you receive. Services can be combined; hosting and maintenance are a separate category.
ServiceThe problem it solvesWhat you receive
Core Web VitalsSearch Console shows pages failing speed or stability checks.Causes found, fixed and re-checked on real visits.
Speed and assetsPages send too much: heavy images, unused code, no caching.Smaller files, a caching plan and leaner code.
Backend and databaseSlow servers, queries or APIs make every page wait.Query, server and caching fixes, with room to grow.
Security auditsNobody knows what is exposed or which weaknesses matter.A severity-rated findings report and a fix plan.
Backup and monitoringNobody would notice an outage, or could restore after one.Tested restores, monitoring, malware cleanup and a response plan.
05/QUESTIONS

Frequently asked questions

Should performance or security work come first?

It depends on what is already known. When nothing has been measured, reviewing both at the start is sensible, because the same look at the stack informs each. When one problem is already known, such as failing field data or a backup that has never been restored, the one that could cost the most if it went wrong is addressed first.

Why is my site slow when hosting is not the problem?

Many slow pages are slow in the browser rather than on the server. Common causes include oversized images, render-blocking scripts and stylesheets, JavaScript that runs before content appears, and third-party tags. Upgrading hosting fixes none of those, which is why diagnosis comes before spending, starting with how much of the load time is server response.

Can you make my website completely secure?

No, and treat any supplier who says otherwise with suspicion. Security is risk reduction, not a finished state. What an engagement delivers is an assessment of current exposure, hardening of the surfaces that matter, tested backups, monitoring so problems are noticed, and a documented plan for when something does go wrong.

Do you provide compliance certification, such as SOC 2 or ISO 27001?

No. We do not certify, attest or audit compliance with SOC 2, ISO 27001, PCI DSS or any other standard, and we do not give legal advice. What we provide is technical: security audits, hardening, and implementation of the privacy and security measures a business and its advisers decide it needs.

How often should performance and security be re-checked?

After every significant release, and on a schedule in between. Both decay: new features add weight, dependencies develop known vulnerabilities, and third-party tags accumulate. A one-off optimization with no release check tends to regress as later changes add scripts, images and dependencies that nobody measures.

Do you fix a site that has already been compromised?

Yes: cleanup, then cause. Removing malicious code without closing the entry point means it returns. The work covers cleanup, identifying how access was gained, patching that route, rotating credentials, restoring from a known-good backup where needed, and adding monitoring so a repeat is noticed quickly.

06/THE FULL DETAIL

The full detail.

Short answers are above. Open a panel below for the specifics: how we decide, what is included and the deeper questions.

Which of these do you need?

  • Start with Core Web Vitals when Search Console reports poor URLs.

    Field data that fails on LCP, INP or CLS is specific and measurable, which makes it the clearest place to begin performance work.

  • Start with speed and asset work when pages are simply heavy.

    If pages carry large images, unused scripts and no caching, reducing what is sent helps every visitor, including on pages too quiet to have field data.

  • Start with a security audit before other security spending.

    An audit establishes which weaknesses exist and how severe they are, so authentication, API and monitoring work is aimed at real findings rather than guesses.

  • Start with backups and monitoring when recovery is untested.

    If a restore has never been tried, or nobody would notice the site going down, that gap is worth closing before any optimization.

  • Look to hosting and maintenance when the need is keeping it running.

    Hosting setup, migrations, cloud deployment and ongoing technical maintenance belong to hosting, maintenance and support, which works from the same measurements.

How do caching and a CDN make a website faster?

Caching makes a website faster by storing a finished response so it is not rebuilt for every visitor, and a CDN serves those stored copies from locations close to each visitor. Together they cut server work and network distance, which lowers Time to First Byte and leaves more of the loading time for the content itself.

Caching works at several layers, and each needs its own rules: browser caching through Cache-Control headers, edge caching of pages and assets on a CDN, server-side caching of rendered pages, and application caching of expensive queries. Files whose names change when their content changes can be cached for a long time; HTML needs a shorter lifetime or a way to purge it when content changes.

Assets are the other half of speed. Images are converted to modern formats and served at the size they are displayed, code a page does not use is removed or split out, and third-party scripts are reviewed for what they cost. WebP lossless images are typically smaller than equivalent PNGs, which is why format is checked before anything more expensive.

Designing the caching strategy belongs here. Configuring and operating the CDN from day to day belongs to hosting, maintenance and support.

What is cache invalidation, and why does it matter?

Cache invalidation is how a stored copy is replaced when the original changes. Without a plan for it, visitors see outdated pages or old files after a release. Versioned file names, short lifetimes for HTML and a purge step in the deployment process keep caching fast without serving stale content.

When is the server or database the reason a site is slow?

The server or database is the reason a site is slow when Time to First Byte is long, meaning the browser waits before any content arrives. As a rough guide, most sites should aim for a TTFB of 0.8 seconds or less. Slow queries, missing indexes, uncached rendering and overloaded hosting all show up here, before front-end work can help.

Diagnosis starts with where the time goes on the server: which queries run on a request, how long each takes, whether they use indexes, and how many repeat. Query and index tuning, connection pooling, caching expensive results and moving slow work to background jobs are tried before larger hardware, because they keep working as data grows.

Upgrading hosting is the right fix when measurements show the server is genuinely out of capacity. It is the wrong one when the time is spent in the browser, which is why hosting decisions follow the diagnosis rather than lead it.

How does a website keep performing as traffic grows?

A website keeps performing as traffic grows when most requests never reach the slowest parts of the system. Static generation and caching answer repeat requests without new work, a CDN absorbs traffic at the edge, and the database and APIs are tuned so the requests that remain do not queue behind each other.

Scaling is planned from the load a system actually carries and the load it is expected to carry, not from a generic target. Where more capacity is needed, the options run from better caching and query work to additional server resources and cloud services that add capacity on demand, and each is chosen for the bottleneck the measurements reveal.

Hosting setup, cloud deployment and server migration are carried out under hosting, maintenance and support, which uses the performance findings from this work to size and configure the environment.

What does authentication and access control hardening involve?

Authentication and access control hardening makes sure only the right people can sign in and that each account reaches only what it is allowed to. It covers password and credential policy, two-factor authentication, session and token handling, and permission checks enforced on the server for every request rather than hidden in the interface.

Broken access control and authentication failures are both among the most critical web application security risks. For an existing system, this work reviews and fixes how those controls are enforced. For a new application, sign-in, roles and permissions are designed as part of web application development and SaaS development, where they are explained in full.

What does application and API security hardening cover?

Application and API security hardening closes the ways attackers commonly reach data through a website: unvalidated input, missing output encoding, unauthenticated or over-permissive APIs, weak transport security and missing security headers. Each fix is made in the code or configuration where the weakness starts, then tested so legitimate features keep working.

SSL implementation today means TLS certificates, HTTPS on every URL, a permanent redirect from HTTP, secure cookies and no mixed content, followed by Strict-Transport-Security once HTTPS is reliable. Browsers ignore that header on a plain HTTP response, and a misconfigured one can lock users out, so it is introduced in stages.

  • Input validation on the server, and output encoding for every context.
  • Parameterized queries or a safe query builder, never strings built from input.
  • API authentication, authorization on every object, and rate limiting.
  • HTTPS on every URL, with certificates renewed automatically and HTTP redirected.
  • Security headers such as Content-Security-Policy, HSTS and frame protection.
  • Database accounts with only the permissions the application needs.

What makes a backup recoverable?

A backup is recoverable when it has been restored successfully in a test, is stored separately from the system it protects, and covers everything needed to rebuild: data, uploaded files, configuration and the code version that matches them. Backups of critical data should be kept offline and encrypted, with their availability and integrity tested regularly.

Recovery is documented as steps someone other than the original developer can follow, and the time a restore takes is measured rather than guessed. Monitoring is the other half: uptime checks, error alerts and security monitoring mean an outage or a compromise is noticed by the team rather than reported by a customer.

When a site has already been compromised, malware cleanup removes the malicious code, the entry point is found and closed, credentials are rotated and a known-good backup is restored where needed. Google can show warnings in search results and browsers for affected sites, and owners request a review through the Security Issues report in Search Console once the site is clean.

This category engineers backups, monitoring and incident response. Running them from day to day, as part of an ongoing arrangement, belongs to hosting, maintenance and support.

What does privacy and cookie implementation involve?

Privacy and cookie implementation builds what a privacy policy describes into the website itself: a consent banner that actually controls which cookies and scripts load, categories that match the tools in use, retention periods applied to stored data, and working requests to export or delete personal information. It is technical work, not legal advice.

The legal requirements that apply depend on where a business operates and who its visitors are, and they are decided by the business and its legal adviser. Basic compliance implementation turns those decisions into behavior: scripts that wait for consent, forms that collect only what is needed, and data deleted when its retention period ends. A banner alone does not make a website compliant, and no compliance outcome is promised.

What makes a website fast?

A website is fast when every link in its delivery chain is quick, from the first connection to a layout that holds still. The chain below is simplified, and the slowest link sets the pace for everything after it.

  1. 01

    Connection and CDN

    DNS, TLS and a nearby edge cache shorten the distance to the first byte.

  2. 02

    Server response

    Cached or quickly generated HTML keeps Time to First Byte low on every visit.

  3. 03

    Database and APIs

    Indexed queries and fast APIs stop dynamic pages waiting on data before responding.

  4. 04

    HTML

    Server-rendered markup delivers the content itself, not an empty shell waiting for scripts.

  5. 05

    CSS and fonts

    Small stylesheets and preloaded fonts with matched fallbacks let text render early.

  6. 06

    Images and LCP element

    The largest element, often an image, is discovered early, sized and compressed.

  7. 07

    JavaScript

    Less script and shorter tasks keep the main thread free to answer interactions.

  8. 08

    Stable layout

    Reserved space for media, embeds and fonts stops content moving after it paints.

A simplified model of how a page reaches a visitor. The stages overlap in practice, not every stage applies to every site, and nothing in this diagram is a measurement of any website.

Technology and approach

  • Field data from real visits decides what is fixed first; lab tools are used to find causes and to test changes before release.
  • Static generation and caching come before bigger servers, because work that never happens at request time cannot slow a request down.
  • Images are served in modern formats at the size they are displayed, and only the largest above-the-fold image is loaded with priority.
  • Security is described as risk reduction, never as a finished state, and no page or report promises that a system is secure.
  • Security headers are built from the resources a site actually loads, tested for violations, and widened deliberately when a new third party is added.
  • A backup counts only once a restore has been tested, and backups are tested regularly for availability and integrity.
  • Privacy and consent work is technical implementation, never legal advice, and no compliance outcome is promised.
07/RELATED

Capability areas that work with this one

Talk to us about Performance & Security.

Tell us what you need and when you need it. We reply with a clear scope and the next steps.