Test
1 GB
$2.62
$2.62/GB
- Check your own targets first
- All four countries
- Traffic never expires
Quick answer
How do I test my website's Japanese or Korean version from abroad?
Run your test browser through a residential IP in the target country and set the matching browser language and time zone. Your site then sees a visitor in Japan, South Korea, Taiwan or Hong Kong, so geo-based redirects, currency, payment options and legal notices behave as they will for real users. JapanProxies sells those IPs from $2.62 for 1 GB, with no KYC and payment in crypto.
What breaks in East Asian localization?
Common problems to test for:
- Geo redirects. A visitor in Japan is sent to the English or global site, or loops between two versions.
- Currency and prices. Prices shown in US dollars, or yen prices with decimals (the yen has no subunit in everyday prices).
- Payment options. Local methods missing for the country, such as convenience-store payment in Japan or local card brands and wallets in Korea and Taiwan.
- Language negotiation. The site reads only the IP or only
Accept-Language, so a Japanese visitor with an English browser gets the wrong page. - Legal notices. Japanese online shops must show a notice under the Act on Specified Commercial Transactions; Korean, Taiwanese and Hong Kong pages have their own notice and privacy requirements.
- Fonts and line breaks. Japanese, Korean and Chinese text overflowing buttons or breaking in the wrong place.
Why a residential IP and not just a language setting?
Many sites and CDNs decide the country from the IP address: they redirect, set the currency or hide products before the browser language is read. A language setting alone does not trigger that logic. A residential IP in the country does, because it is the kind of address your real users have.
A datacenter IP can be placed in the right country too, but many fraud and bot-management systems treat hosting ranges differently from home connections. Testing from a home connection shows the path your customers take.
How do I set up a localization test?
- Pick the country code:
jp,kr,tworhk, with a sticky session for each test run. - Set the browser locale and time zone to match:
ja-JPandAsia/Tokyo,ko-KRandAsia/Seoul,zh-TWandAsia/Taipei,zh-HKandAsia/Hong_Kong. - Test two cases: a local visitor with a local browser language, and a local visitor with an English browser.
- Record the IP country your own logs saw, next to each screenshot.
For mobile apps: on an iPhone or iPad, use Wi-Fi → Configure Proxy → Manual, with authentication; on the Android emulator, start it with -http-proxy http://USERNAME-country-jp-session-qa1-ttl-30:[email protected]:7777. Android's Wi-Fi proxy setting has no password field, and some apps ignore the system proxy. For tests that must come from a mobile carrier network, a dedicated 4G/5G port in Japan or South Korea is available from $5.93 per day.
import { chromium } from "playwright";
const markets = [
{ cc: "jp", locale: "ja-JP", timezoneId: "Asia/Tokyo" },
{ cc: "kr", locale: "ko-KR", timezoneId: "Asia/Seoul" },
{ cc: "tw", locale: "zh-TW", timezoneId: "Asia/Taipei" },
{ cc: "hk", locale: "zh-HK", timezoneId: "Asia/Hong_Kong" },
];
for (const m of markets) {
const browser = await chromium.launch({
proxy: {
server: "http://gw.japanproxies.com:7777",
username: `USERNAME-country-${m.cc}-session-qa${m.cc}-ttl-30`,
password: "PASSWORD",
},
});
const context = await browser.newContext({ locale: m.locale, timezoneId: m.timezoneId });
const page = await context.newPage();
await page.goto("https://YOUR-SITE.example/");
await page.screenshot({ path: `home-${m.cc}.png`, fullPage: true });
console.log(m.cc, "landed on", page.url());
await browser.close();
}What does localization testing cost?
A full page load in a browser often uses two to five megabytes. A release test of a few dozen pages in four markets fits in 5 GB; continuous tests in a CI pipeline may need 50 GB. One plan covers the four markets and never expires.
Light
5 GB
$4.95
$0.99/GB
- Occasional rank and ad checks
- All four countries
- Traffic never expires
Standard
10 GB
$6.60
$0.66/GB
- Weekly checks for one market
- All four countries
- Traffic never expires
Team
50 GB
$26
$0.52/GB
- Daily checks across several markets
- All four countries
- Traffic never expires
In every plan: Japan, South Korea, Taiwan and Hong Kong · Rotating and sticky sessions · HTTP, HTTPS and SOCKS5 · Traffic never expires
Localization testing questions
Can I run these tests in CI?
Yes. Store the proxy username and password as CI secrets and run a browser test per market. Use a new session ID for each run, and keep the run small: a localization test needs a few pages, not a crawl.
Does the App Store or Google Play region change with the IP?
No. App stores decide the storefront from the account's country, not from the IP. A proxy helps test what your app does once installed: its content, prices and API responses for a user in the country.
Can I test a CDN or geo-routing rule?
Yes. Request your own site through each country code and compare the response headers, redirects and content. Check what country your CDN logs record for the request.
What if my site thinks a Japanese IP is in another country?
Your geolocation database may be out of date for that address. Compare two or three databases and update yours; see why a proxy shows the wrong location.
Do I need a separate plan per country?
No. One plan covers Japan, South Korea, Taiwan and Hong Kong: change the country code in the username.