Last reviewed: 4 October 2026
Short answer
A website localization launch needs evidence that the Vietnamese customer journey works, not just a completed translation file. Use the fifty checks below to test meaning, functions, technical delivery, search configuration, UX, transactions, measurement, accessibility, media and applicable policies. Assign an owner and record a result for every relevant item. A checklist is a release tool; completing it does not automatically establish search indexing, legal compliance or complete accessibility conformance.
Key takeaways
- Test the actual release candidate with documented environment details.
- Record evidence, defects and ownership rather than a bare tick.
- Use sandbox transactions and authorized test submissions.
- Mark irrelevant checks with a reason and an accountable decision.
- Treat unknown outcomes as unresolved until inspected.
- Re-test the affected journey after a correction.
How should the fifty checks be applied?
First, list the supported pages, languages, customer journeys and environments. Select the release candidate and record its version. Give each check a result of pass, fail, unresolved or not applicable, with a link to the internal evidence record. A not-applicable result needs a reason, such as a website that has no checkout; it is not a shortcut for an untested feature.
Agree which findings block launch. A wrong currency, failed enquiry destination or inaccurate payment confirmation can prevent the intended task. A minor editorial inconsistency may have a different priority. The decision should reflect customer consequence, exposure and the available recovery route, rather than the number of green checks.
Use test accounts and non-sensitive data. Confirm who can trigger external submissions, emails and integrations during testing. Keep production purchases outside the test procedure unless separately authorized. For each defect, retain steps, observed result, expected result and the affected build so someone else can reproduce it.
The following ten groups contain exactly fifty checks. They are original project recommendations and should be adapted to the site's actual services and dependencies.
Linguistic checks: 1–5
Confirm meaning and consistency across the customer journey.
| No. | Check | Test procedure | Evidence to retain |
|---|---|---|---|
| 1 | Meaning accuracy | Compare each launch page with the approved source and intended task. | Recorded corrections and content approval. |
| 2 | Terminology consistency | Search repeated product terms across pages, forms and help content. | Approved glossary and consistent occurrences. |
| 3 | Form instructions | Try accepted and rejected values described by Vietnamese field hints. | Instructions match actual validation. |
| 4 | Triggered message language | Generate success, failure and recovery messages in a test journey. | All expected messages reviewed in Vietnamese. |
| 5 | Commercial copy accuracy | Compare scope, deadlines and price conditions with approved business documents. | No unapproved promise or omitted condition. |
Functional checks: 6–10
Test real outcomes using authorized, non-sensitive submissions.
| No. | Check | Test procedure | Evidence to retain |
|---|---|---|---|
| 6 | Valid enquiry submission | Send an authorized non-sensitive test request through the published form. | Receiving system records the expected request. |
| 7 | Required and optional fields | Submit with each required field empty and optional fields omitted. | Only intended requirements block submission. |
| 8 | Attachment boundaries | Try accepted files and files exceeding the configured submission limit. | Server and client enforce the same policy. |
| 9 | Duplicate and interrupted submission | Interrupt a test submission and repeat it using the supported recovery. | Outcome and duplicate handling are documented. |
| 10 | Confirmation accuracy | Compare the confirmation wording with the actual receiving-system result. | Message certifies only the known outcome. |
Technical checks: 11–15
Verify routes, data handling and release recovery.
| No. | Check | Test procedure | Evidence to retain |
|---|---|---|---|
| 11 | Direct language routes | Open each intended Vietnamese URL directly in a fresh session. | Correct page returns without a language trap. |
| 12 | Unicode round trip | Save and retrieve accented test text through the real data path. | Intended Vietnamese text remains intact. |
| 13 | Cache separation | Request English and Vietnamese variants through configured caching layers. | Each route retains the intended language. |
| 14 | Approved redirects | Test old-to-new URL mappings and repeated redirect chains. | Targets and status codes match the plan. |
| 15 | Runtime and release recovery | Exercise the documented rollback in an isolated release test. | Recovery restores the expected language assets. |
SEO checks: 16–20
Compare the live configuration with the intended public-page inventory.
| No. | Check | Test procedure | Evidence to retain |
|---|---|---|---|
| 16 | Page titles and descriptions | Inspect metadata for every indexable launch page against its content. | Specific, approved Vietnamese metadata. |
| 17 | Canonical intent | Inspect canonical values and target responses across language versions. | Targets reflect the approved indexing strategy. |
| 18 | Language alternate pairs | Inspect equivalent-page annotations and reciprocal references. | Correct language codes and paired targets. |
| 19 | Sitemap integrity | Parse the live sitemap and request its listed canonical URLs. | Valid document and intended reachable pages. |
| 20 | Crawler and indexing settings | Compare live robots rules and page indexing directives with launch intent. | No unintended public-page exclusion. |
UX checks: 21–25
Test the supported customer environments and recovery states.
| No. | Check | Test procedure | Evidence to retain |
|---|---|---|---|
| 21 | Small-screen layout | Complete key journeys at the narrowest supported viewport width. | Essential text and actions stay usable. |
| 22 | Long supported values | Insert long test names, filenames and quantities into real messages. | No misleading clipping or overlapping controls. |
| 23 | Language switching | Switch from each key page and revisit after an explicit choice. | Equivalent destination and documented persistence. |
| 24 | Error recovery | Correct multiple invalid fields without reentering unrelated valid information. | Relevant guidance and retained valid input. |
| 25 | Empty and restricted states | Open empty search results and a permitted access-denied test case. | Different states offer relevant next steps. |
Ecommerce checks: 26–30
Verify commercial behavior only where the site offers transactions.
| No. | Check | Test procedure | Evidence to retain |
|---|---|---|---|
| 26 | Currency identity | Compare displayed prices, cart amounts and payment-provider currency. | Amounts retain the approved currency. |
| 27 | Totals and fees | Run approved test cases for discounts, fees and rounding. | Displayed totals reconcile with server calculations. |
| 28 | Service or delivery availability | Try supported and unsupported destinations or service combinations. | Only actual offers can proceed. |
| 29 | Payment state handling | Use sandbox cases for success, decline and unknown payment outcomes. | No false success or unsafe repeat instruction. |
| 30 | Order reconciliation | Compare a sandbox order reference with provider and internal records. | Expected identifiers and documented matching. |
Analytics checks: 31–35
Make the recorded events match the defined business outcomes.
| No. | Check | Test procedure | Evidence to retain |
|---|---|---|---|
| 31 | Language attribution | Trigger test events on each language route and inspect recorded properties. | Correct declared locale without inferred nationality. |
| 32 | Conversion definition | Complete and fail a test journey while checking conversion events. | Event represents the defined business outcome. |
| 33 | Duplicate event prevention | Reload confirmation and repeat permitted retry actions during testing. | No unintended repeated conversion event. |
| 34 | Analytics data minimization | Inspect event payloads against the approved field inventory. | No unauthorized personal or file content. |
| 35 | Baseline and segmentation | Record the comparison period, traffic segments and concurrent changes. | Measurement plan states its attribution limits. |
Accessibility checks: 36–40
Inspect interaction and presentation, not only translated wording.
| No. | Check | Test procedure | Evidence to retain |
|---|---|---|---|
| 36 | Keyboard operation | Use the keyboard through navigation, forms and required dialogs. | Reachable controls with visible focus. |
| 37 | Labels and accessible names | Inspect field associations and computed names in the localized page. | Purpose and visible label remain recognizable. |
| 38 | Error association | Trigger validation and inspect field-linked error descriptions and focus behavior. | Error can be found and understood. |
| 39 | Text enlargement | Increase text size using supported browser settings and repeat the journey. | Required information and controls remain usable. |
| 40 | Contrast and non-color cues | Measure relevant text pairs and inspect status cues against approved requirements. | Recorded measurements and understandable states. |
Content and media checks: 41–45
Verify the assets and contact information customers depend on.
| No. | Check | Test procedure | Evidence to retain |
|---|---|---|---|
| 41 | Image descriptions | Review each meaningful image's localized alternative text against its purpose. | Description conveys the intended information. |
| 42 | Media rights and representation | Check image permissions and whether stock images imply real relationships. | Rights record and truthful presentation. |
| 43 | Localized downloads | Open linked PDFs and documents in the receiving applications. | Correct language, readable fonts and current instructions. |
| 44 | Contact consistency | Compare email, phone and support availability across pages and messages. | Approved details and working contact routes. |
| 45 | Content completeness | Compare the approved inventory with live pages, links and assets. | No missing launch content or broken dependency. |
Policy and regulatory review: 46–50
Obtain applicable specialist review and verify the approved implementation.
| No. | Check | Test procedure | Evidence to retain |
|---|---|---|---|
| 46 | Applicable policy review | Ask the assigned specialist to review current notices for the actual service. | Dated approval with applicable scope. |
| 47 | Choice implementation | Test declared consent or communication choices against the approved policy. | Selections produce the specified behavior. |
| 48 | Terms and fee alignment | Compare published terms with offer, refund and charge behavior. | Approved content matches operational rules. |
| 49 | Data and file handling | Review access, retention and transfer routes with accountable owners. | Documented controls match approved notices. |
| 50 | Claims and sector requirements | Obtain review of regulated claims and business-specific launch requirements. | Documented decisions before public release. |
Which source-backed distinctions matter during review?
Separate search configuration from guaranteed indexing. Google's sitemap guidance describes including preferred canonical URLs and treats submission as a hint [1]. A valid sitemap is useful evidence for check 19, but it cannot prove that every page will appear in search results.
Separate crawler rules from private access. Google explains that robots.txt manages crawling and is not a way to keep a web page out of Google [2]. Check 20 therefore needs the intended indexing strategy, while private systems require appropriate access controls. Do not mark a staff portal secure merely because its path appears in robots.txt.
Review labels as functional information. W3C's form guidance addresses identifying controls and associating labels with them [3]. The review must inspect implementation as well as Vietnamese phrasing. A readable label beside a field is not sufficient evidence that the field is named correctly for all interaction modes.
For data-related regulatory review, the official government record of Vietnam's Law 91/2025/QH15 on personal data protection is a reference for the assigned specialist [4]. Identify current applicable rules and approved implementation for the actual service. This checklist does not interpret duties or certify compliance for a particular business.
What should the release evidence look like?
Keep an internal record with check number, build, environment, tester, time, steps, outcome and evidence. Screenshots may support visual findings; receiving-system logs can establish whether an enquiry arrived; sandbox records can establish payment-state behavior. Redact sensitive information in shared reports.
Distinguish a proposed test from an executed test. A written test case is preparation, while a pass needs observed evidence from the release candidate. If an integration cannot be reached, mark the result unresolved and specify what must be verified before that feature launches. Do not convert an observation gap into a pass because the interface looks correct.
How should defects be closed?
Fix the cause and repeat the relevant test. If the source wording changes, review its Vietnamese counterpart and affected messages. If a server rule changes, update the hint and rejection message. If a component is resized, revisit narrow layouts and neighboring controls.
Store the closure evidence with the issue and record any remaining limitation. Re-run related journeys when a correction can affect them, but avoid repeating unrelated tests merely to accumulate a larger checklist count. The final release decision should state remaining risks and their owners clearly.
LocalizeZone recommendation
Include this checklist and your page inventory when requesting website localization. LocalizeZone recommends agreeing the level of linguistic and in-context review before translation starts. Engineering, commercial operations and policy owners remain responsible for their respective decisions. A shared evidence record makes the launch scope and quotation easier to assess.
FAQ
Do all fifty checks apply to every website?
No. A non-transactional site may not need ecommerce cases. Record the reason and owner for each excluded item.
Can a screenshot prove a form works?
It can show appearance, but successful delivery needs evidence from the receiving system and the tested workflow.
Does passing SEO checks guarantee ranking?
No. Configuration checks do not guarantee crawling, indexing, ranking or citation by an AI system.
Is this a complete accessibility audit?
No. It identifies practical review areas. Define a fuller assessment when conformance is required.
Should tests use real customer documents?
Use non-sensitive fixtures wherever possible. Control and authorize any production data or external action needed for testing.
What happens when a check cannot be performed?
Record it as unresolved with the missing evidence and responsible owner. Decide whether the affected feature can launch separately.
Sources and methodology
Fifty original checks are grouped into ten workstreams, each with a test and evidence requirement. Primary documents were checked on 4 October 2026; the government law record supports identification of a review reference, not a clause-by-clause legal assessment. The article reports no executed customer-site audit, guaranteed outcome or universal compliance score. Adapt the procedures to the supported release scope.
References
[1] Google Search Central. Build and submit a sitemap.
[2] Google Search Central. Introduction to robots.txt.
[3] W3C Web Accessibility Initiative. Forms Tutorial: Labeling Controls.
[4] Government of Vietnam, official legal-document portal. Law 91/2025/QH15: Luật Bảo vệ dữ liệu cá nhân.
Related guides
- How to Localize a Website for Vietnam
- Vietnamese SEO Localization: Keywords, Search Intent and Content Adaptation
- Vietnamese Localization Style Guide for Software and SaaS
- Vietnamese Date, Time, Number and Currency Formatting Guide
- Vietnamese Address Format: A Guide for Forms, Ecommerce and Databases
- Vietnamese Personal Names: A Guide for Forms, Databases and User Interfaces