Shenzhen China Custom Web & Software Development Co., Ltd
Choosing a website development company in China is an important decision, especially when the website will support your sales, customer acquisition, e-commerce operations, or internal business processes.
A company may have an attractive portfolio and a competitive quotation, but that alone does not tell you whether it is the right development partner.
Before signing a contract, you should understand exactly who will build the website, what will be delivered, how the project will be managed, who owns the code, and what happens after launch.
This checklist is designed for international businesses considering a Chinese website development company.
1. Confirm What You Actually Need
Before comparing developers, write down the purpose of the website.
Are you building:
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A corporate website?
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A B2B website?
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An e-commerce store?
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A product catalog?
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A customer portal?
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A booking system?
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A web application?
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A SaaS platform?
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An internal business system?
The development approach and budget can be completely different for each type.
A five-page company website does not require the same technical team as a custom B2B platform.
2. Check the Company’s Actual Development Capability
One of the first questions to ask is:
Who will actually develop the website?
Some companies primarily provide design, marketing, or project management and outsource the programming.
That is not automatically a problem, but you should understand the structure.
Ask:
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Do you have in-house developers?
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How many developers will work on my project?
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Who will be responsible for frontend development?
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Who will handle backend development?
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Do you have QA or testing personnel?
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Who will manage deployment?
Knowing the actual team can help you evaluate the project’s reliability.
3. Ask About Their Technology Stack
A professional development company should be able to explain its technical choices.
Depending on the project, the stack may include:
Frontend
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HTML
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CSS
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JavaScript
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TypeScript
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React
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Next.js
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Vue.js
Backend
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Node.js
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Python
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PHP
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Java
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.NET
Database
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MySQL
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PostgreSQL
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MongoDB
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Redis
You do not need to choose the technology simply because it is popular.
Instead, ask why the company recommends a particular solution for your project.
4. Check Previous Projects
Ask to see actual projects that are similar to yours.
Do not only ask:
“Do you have experience?”
Ask for examples.
Ideally, review projects with similar:
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Business model
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Technical complexity
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Target audience
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Number of users
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Product structure
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Integrations
A company experienced in small corporate websites may not necessarily be experienced in building a complex web application.
5. Test the Company’s Own Website
The development company’s own website can provide useful clues.
Check:
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Mobile responsiveness
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Page speed
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Navigation
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Broken links
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Contact forms
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HTTPS
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Content quality
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Technical structure
However, remember that a company’s own marketing website is only one piece of evidence.
The actual projects they have delivered are more important.
6. Ask for a Detailed Project Proposal
Avoid accepting a quotation containing only:
Website development — $3,000
That does not tell you what you are buying.
A professional proposal should explain:
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Number of pages
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Design scope
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Functional requirements
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Frontend development
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Backend development
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Database
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Integrations
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Testing
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Deployment
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Maintenance
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Delivery schedule
A detailed proposal makes it easier to compare different suppliers.
7. Confirm the Exact Features
Write every important feature into the project specification.
For example:
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Product search
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Product filtering
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User registration
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Login
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Contact forms
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Online quotation
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Payment
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Customer dashboard
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Admin dashboard
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File upload
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API integration
If a feature is important to your business, do not rely on verbal promises.
Put it in the written project scope.
8. Clarify What “Custom Development” Means
The term custom website development can mean different things.
One company may build everything from scratch.
Another may install a CMS and customize a theme.
Both approaches can be valid depending on the project.
Ask:
Which parts are custom-developed?
For example:
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Custom frontend?
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Custom backend?
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Custom database?
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Custom API?
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Custom admin panel?
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Custom business logic?
This prevents misunderstandings later.
9. Check Source Code Ownership
This is particularly important for custom web development.
Before signing the agreement, determine:
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Who owns the source code?
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Will the complete code be delivered?
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Can you modify the code?
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Can another developer maintain it?
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Can you migrate the website?
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Are there third-party components with separate licenses?
If the website becomes an important business asset, you do not want to discover later that you cannot access or migrate your own system.
10. Ask About Intellectual Property
Clarify ownership of:
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Source code
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Website design
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Graphics
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Custom icons
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Database structure
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Documentation
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Custom-developed components
Third-party software may have separate licensing terms.
The contract should clearly distinguish between your custom work and third-party software.
11. Understand the Payment Schedule
Do not focus only on the total project price.
Understand when payments are required.
A project might use milestones such as:
Deposit → Design approval → Development milestone → Testing → Final delivery
For larger projects, milestone payments can provide better control than paying the entire amount upfront.
The exact payment schedule should be agreed before development begins.
12. Ask How Revisions Are Handled
Website projects often require revisions.
For example, you may request changes to:
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Homepage design
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Product pages
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Navigation
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Colors
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Forms
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Content layout
Ask:
How many design revisions are included?
Also ask what happens when a requested change is outside the original scope.
A clear revision policy can prevent disagreements.
13. Understand Change Requests
Some requirements only become clear after development begins.
For example, you may decide that your website needs an additional:
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Payment method
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User role
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Product filter
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API
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Dashboard
Ask how additional development is priced.
A professional company should be able to provide a clear change-request process.
14. Check the Development Timeline
Ask for a realistic project schedule.
A website project may include:
Stage |
Typical Work |
|---|---|
Discovery |
Requirements |
Planning |
Architecture |
Design |
UI/UX |
Development |
Frontend + Backend |
Testing |
Bug fixing |
Review |
Client approval |
Deployment |
Production launch |
Support |
Post-launch maintenance |
Do not judge a company simply because it promises the fastest delivery.
A complex website cannot always be developed properly in a few days.
15. Ask Who Provides the Content
Clarify who is responsible for:
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Text
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Product descriptions
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Images
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Videos
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Logo
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Translations
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SEO metadata
Some development companies only provide technical development.
If you assume content production is included but it is not, the project may be delayed.
16. Check Multilingual Development
If your customers are international, multilingual functionality should be discussed early.
Ask whether the system supports:
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Multiple languages
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Language switching
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Localized URLs
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Language-specific metadata
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Multilingual product information
If SEO is important, ask how multilingual pages will be structured.
Simply adding Google Translate to a website is not the same as building a proper multilingual website.
17. Check SEO-Friendly Architecture
If you expect Google or other search engines to generate traffic, discuss technical SEO before development.
Important areas include:
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Clean URLs
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Page titles
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Meta descriptions
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Heading structure
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Canonical URLs
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XML sitemap
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Robots.txt
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Schema markup
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Internal linking
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Mobile responsiveness
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Page speed
Ask whether these items are included in the development quotation.
18. Test Website Performance
Ask the company how performance will be optimized.
Potential areas include:
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Image compression
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Caching
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CDN
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Database optimization
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Code optimization
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Lazy loading
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Server configuration
After receiving a staging version, test the website yourself.
Do not evaluate speed only from the developer’s office or a single computer.
19. Check Mobile Compatibility
A website should work properly on:
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Android phones
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iPhones
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Tablets
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Laptops
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Desktop computers
Check important functions such as:
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Navigation
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Forms
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Buttons
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Product filters
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Login
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Checkout
A website can look excellent on desktop while having serious problems on mobile.
20. Ask About Security
For a website that stores customer information or handles payments, security should be discussed before development.
Ask about:
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HTTPS
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Authentication
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Password security
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User permissions
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Input validation
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Database protection
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API security
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File upload security
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Backups
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Security updates
The more sensitive the system, the more important these questions become.
21. Check Backup Procedures
Ask:
What happens if the server fails?
Find out whether backups are performed and how frequently.
You may need:
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Database backups
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Website file backups
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Configuration backups
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Off-site backups
Also ask how quickly a backup can be restored.
A backup that cannot be restored when needed is not a reliable recovery strategy.
22. Understand Hosting Responsibility
Clarify who manages the hosting environment.
Possible arrangements include:
Client-owned server
or
Developer-managed server
Client-owned hosting can provide greater control.
Developer-managed hosting can be easier for businesses that do not have technical staff.
Whichever model you choose, make sure you know:
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Server provider
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Account ownership
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Login access
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Renewal costs
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Backup arrangements
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Migration options
23. Check Domain Ownership
The domain name should normally be controlled by the business owner.
Make sure you have access to:
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Domain registrar
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DNS
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Hosting
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SSL
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Business email
Do not allow a development project to create unnecessary dependence on a supplier.
24. Ask About Third-Party Services
Your website may depend on third-party services such as:
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Payment gateways
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Email platforms
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Maps
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Analytics
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CDN
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SMS
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Cloud storage
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Translation services
Ask who owns these accounts and who pays the recurring fees.
Whenever possible, important business accounts should be registered under your company’s ownership.
25. Evaluate Communication
Communication is one of the most important factors when working with an overseas development company.
Ask:
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What communication platform do you use?
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Who is my project manager?
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How often will I receive updates?
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How are technical issues documented?
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What happens if the project manager changes?
A strong technical team can still become difficult to work with if project communication is unclear.
26. Check English Communication
For international projects, English communication can significantly affect project efficiency.
You should be able to discuss:
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Requirements
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Design
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Technical issues
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Deadlines
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Changes
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Testing results
You do not necessarily need native-level English from every developer.
What matters is whether the project team can understand technical requirements accurately.
27. Ask About Testing
Before launch, the website should go through testing.
Depending on the project, this may include:
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Functional testing
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Browser testing
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Mobile testing
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Form testing
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Payment testing
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API testing
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Security testing
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Performance testing
Ask whether bug fixing during the testing period is included in the project price.
28. Understand the Warranty Period
Ask what happens after launch.
For example:
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Is there a 30-day warranty?
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Is there a 90-day warranty?
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Are bugs fixed for free?
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Are new features charged separately?
There is an important difference between:
Fixing a development bug
and
Adding a new feature.
Make sure the contract defines this distinction.
29. Ask About Long-Term Maintenance
A website may need support after launch.
Maintenance can include:
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Software updates
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Security patches
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Bug fixing
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Server monitoring
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Database maintenance
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Backups
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New features
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Performance optimization
Ask whether maintenance is:
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Included
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Monthly
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Annual
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Charged hourly
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Charged per project
30. Compare the Total Cost, Not Just the Development Price
Suppose three companies provide:
Company A: $2,000
Company B: $4,000
Company C: $7,000
Do not immediately choose Company A.
Compare:
Item |
A |
B |
C |
|---|---|---|---|
Custom design |
|||
Backend |
|||
API integration |
|||
Testing |
|||
SEO structure |
|||
Source code |
|||
Documentation |
|||
Warranty |
|||
Maintenance |
The lowest quotation may not have the lowest total cost over several years.
31. Watch for These Warning Signs
Be careful if a development company:
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Gives a price without understanding your requirements
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Cannot explain the technology being used
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Refuses to show previous work
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Requires the entire payment upfront
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Will not clarify source-code ownership
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Has no written project scope
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Promises unrealistic delivery times
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Avoids discussing security
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Has unclear maintenance terms
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Changes the price repeatedly without explanation

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