The seven criteria of website development quality for business websites in 2026 include: fast (core web vitals); safe (OWASP top 10); accessible (WCAG 2.2); optimized for search and artificial intelligence; clean and easily maintained code; data privacy and reliability of work (backup and monitoring). To check whether your website includes all necessary criteria, please use the following list.
It is not necessary to be a developer to check the quality of website development. It is enough just to know the criteria and to ask appropriate questions. This article will give you a set of the most important website development best practices represented in the form of an English-language checklist and free tools for verification of these best practices.
Why do web development best practices matter for a business?
A website which is created according to contemporary best practices will work faster, will rank better in search results, will attract more visitors, will be safer to hack and cheaper to maintain. A website which does not follow some of them works perfectly fine in the first two years but becomes slower, unreliable and expensive to maintain in several years later. This article explains why enterprise websites stop working after their launch.
1. Speed: pass Core Web Vitals
Page experience is measured by Google using three Core Web Vitals. A website which passes at least 75% of visits for all three Core Web Vitals on both mobile and desktop devices is considered good.
| Metric | What it measures | Good score |
| Largest Contentful Paint (LCP) | How quickly the main content appears | 2.5 seconds or less |
| Interaction to Next Paint (INP) | How quickly the page responds to taps and clicks | 200 milliseconds or less |
| Cumulative Layout Shift (CLS) | How much the layout jumps while loading | 0.1 or less |
Among best practices of websites there are: WebP or AVIF image formats, correct image sizes, lazy loading of below-the-fold images, caching and content delivery network, minimal amount of third-party scripts and lack of redirects chains. Our guide tells you how to improve Core Web Vitals and fix problems of page speed because of redirects.
2. Security: build against the OWASP Top 10
The most commonly used critical risks list of web applications is OWASP Top 10 where currently the latest version is OWASP Top 10 version 2025 and the three most critical vulnerabilities here are broken access control, security misconfiguration and software supply chain failures.
Good practice includes:
- Using HTTPS for all web pages as well as configuring security headers.
- Implementing multi-factor authentication for all admin accounts and using least privilege principle.
- Updating CMS and all plugins/libraries.
- Input/output filtering and rate limiting to prevent SQL injections.
- There are no passwords or key codes programmed within the application.
- An application-based firewall for dangerous websites.
3. Accessibility: aim for WCAG 2.2 AA
The most recent accessibility guideline is WCAG 2.2, introduced in October 2023 by W3C. If your website is AA-compliant, it would mean that the website will be accessible to other users using screen readers and keyboard navigation.
Recommended practices are: Descriptive alternative texts for all images, adequate color contrast, descriptive labels for all form elements, full keyboard accessibility with focus indicators, large enough buttons to click on, video subtitles, and appropriate right-to-left design for the Arabic language.
4. Search and AI readiness
Your website needs to be accessible by search engines and AI.
Good practice includes:
- Only one H1 tag per page and well-structured heading hierarchy.
- Clear and comprehensible URL structure, XML Sitemap.
- Include canonical URLs to prevent duplications.
- Utilize schema markup for your organization, services, products, articles and FAQs.
- Go for server-side rendering or static generation for your JS-based pages to make sure that the content will be displayed even if no script will be run.
- Hreflang for your Arabic and English-based sites.
- Your 301 redirect list when you alter your URLs.
Discover how AI-based search engines affect website structuring.
5. Clean, maintainable code
Good code is not good because it works. Good code is good because someone can change it.
Good practice includes:
- Maintain versions using Git source code management tool.
- Develop, stage, and test your applications in different environments.
- Coding practices and code reviews.
- Automated tests for specific scenarios such as contact form submissions, checkouts, and login.
- Documentation related to setup and integration.
- Updates of dependencies and removal of any unused code.
6. Data privacy
Issues concerning consent, transparency, and the rights of individuals whose personal data is being collected are covered by the laws and regulations associated with UAE’s Personal Data Protection Law (Decree-Law No. 45 of 2021). Companies working in DIFC and ADGM regions have data protection laws as well.
Best practices are: collecting data only when needed, getting consent from the user for marketing purposes, having an appropriate privacy policy in relation to business operations, protecting sensitive information using encryption, and limiting access to form submissions and client records.
7. Reliable operations: backups, monitoring and updates
Web emergencies can be avoided through proper maintenance.
Good practice includes:
- Database backup of the website performed automatically on a daily basis and stored in a safe location away from the website itself.
- Uptime monitoring with alerts.
- Logging errors to catch problems before users notice them.
- A schedule for performing updates that undergo testing before deployment.
- Appropriately sized hosting in accordance with the traffic requirements. Read more about the significance of premium hosting in 2026.
Maintenance for the website will involve virtually all of these aspects for you.
The web development best practices checklist
| Area | Best practice | How to check |
| Speed | Passes Core Web Vitals on mobile and desktop | PageSpeed Insights, Search Console |
| Security | HTTPS, MFA for admins, regular updates | Browser padlock, ask for an update log |
| Accessibility | WCAG 2.2 AA basics in place | WAVE or Lighthouse accessibility audit |
| Search and AI | One H1, schema, sitemap, clean URLs | Search Console, Rich Results Test |
| Code quality | Git, staging site, documentation | Ask for repository access and docs |
| Privacy | Consent, privacy policy, limited access | Review forms and the privacy page |
| Operations | Daily off-site backups, uptime monitoring | Ask when the last restore test was done |
6 questions to ask your developer
- What is the performance of our Core Web Vitals metrics on mobile?
- How can we make sure that CMS, the plugins, and the libraries stay updated?
- Which accessibility tests are performed before the launch?
- Which structured data is present on our critical pages?
- Where is the code being hosted, and is it available for access?
- When was the backup last tested?
In case you get clear and confident responses, then your website is safe.
How RedBerries builds to these standards
As a web development company Dubai relies upon to build its websites over 12 years, we follow such approaches as mobile first, semantic markup and structured data, performance optimisation, and browser, security, performance and user acceptance testing on the staging site for every single project which results in the speed increase of websites up to 30%.
Frequently asked questions
What are web development best practices?
Best practices of web development are the industry standards of creating websites that are fast, reliable, secure, maintainable. Best practices of business web development in 2026 will include Core Web Vitals, OWASP Top 10 security threats, WCAG 2.2, search engine and AI readiness, version control and clean code, data privacy, and regular backups and updates.
What are good Core Web Vitals scores?
The best performance metrics are Largest Contentful Paint less than 2.5 seconds, Interaction to Next Paint less than 200 milliseconds, and Cumulative Layout Shift less than 0.1. Google calculates each metric separately for mobile and desktop devices at the 75th percentile of all visits.
What is the OWASP Top 10?
OWASP Top 10 is a list of the 10 most critical vulnerabilities of web applications that is created and regularly updated by Open Worldwide Application Security Project. In 2025, the most dangerous issues were broken access control and security misconfiguration.
How often should a business website be updated?
The upgrades to CMS, plugins, and libraries have to be done right after they were tested, on a weekly or monthly basis. It is advisable to update content every few months, while a technical review has to be completed once a year and it covers speed, security, and SEO.
How can I check if my website follows best practices?
Start with free tools – PageSpeed Insights will help to analyze the site speed, Google Search Console will provide the site indexing status, Core Web Vitals and Rich Results Test for structured data. Afterward, turn to your developer for information about updates, backups, and access to code.
Want a second opinion on your website?
To get a professional review of your current website or build a new one that meets all of the above criteria, consider hiring a website development company trusted by Dubai. Set up a free consultation with RedBerries.