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How do I change the site language?

Author: eSIMonline Editorial · eSIMonline editorial teamHuling na-update: Setyembre 6, 2026
How do I change the site language?

Use the language switch in the header or footer. Changing language takes you to that language's own web address, which is a distinct page you can bookmark.

This site splits content clearly into two languages, Thai and English. The language switch is not simply hiding or showing text — it takes you to that language's own web address, a technically different page that carries equivalent content on the same topic. Many people are thrown off when switching language feels like the page "reloading" even though they were on the same topic before. That is expected, because the site is built so each language has its own address.

This page is for anyone who wants to know exactly where the language switch sits, how it actually behaves, and anyone who has run into trouble mid-switch — a page that opens without a translation, or a shared link that a friend sees in the wrong language. We work through where the switch lives, how the two languages' web addresses differ, and how to share a link that lands in the language you intend, without referencing any one specific device's menu, since browsers and devices lay their screens out differently.

How do I change the site language?

Where the language switch actually sits

The switch sits in two main places: the header bar at the top of the page and the footer at the very bottom. Most of the time it shows as a short language code, like TH and EN, or a pair of small flags. The exact placement can shift slightly with screen size, since the site adapts to the device viewing it. On a phone, the switch is usually tucked inside the hamburger menu at the top corner of the screen; on a computer, it usually sits visibly at the top right of the header without needing an extra tap.

If you scroll all the way down without spotting it up top, check the footer — some long pages hide the header while scrolling, but the footer always carries the same switch as a fallback. If it genuinely cannot be found, try refreshing the page first, since occasionally a page's script does not finish loading and some buttons fail to render.

Menu placement varies by browser and device manufacturer. If the guidance above does not match what you see, fall back on the general principle — look at the header first, then the footer — rather than expecting one fixed pixel position.

What actually happens when you tap the switch

Tapping the switch takes you to an entirely separate web address carrying the same topic written in the other language — it is not an instant on-page translation of the text in place. The two languages' addresses typically differ in the front portion of the link, or carry a language code marking them apart. An easy way to see this is comparing the browser's address bar before and after the tap; it genuinely changes, even though the content you read looks similar because it covers the same subject.

The consequence is that if you copy a link while on the Thai page and send it to a friend who reads English, that friend will still see the Thai page, because the link is tied directly to that language's own address, not to each individual reader's personal language setting. The fix is either to have your friend switch language themselves after opening the link, or for you to switch language before copying the link so it already matches what the recipient wants to read.

How the two languages' addresses differ

The address structure for the two languages is deliberately kept separate so that search engines can index each language independently, and so you can bookmark whichever language's link you want without needing to switch again every time you return. That is why the same page in two languages has two separate addresses, rather than one address that renders differently depending on browser settings.

If you notice the English page's address is slightly longer or shorter than the Thai one, that is simply how the site's structure works — it does not mean either page is broken. What is worth checking, whenever you are unsure you are on the right language, is the actual text on the page itself, rather than trying to count the length of the address.

How do I change the site language?

Bookmarking the link for your preferred language

Because each language has its own address, you can bookmark the page you are reading in whichever language you prefer, without worrying that opening it next time will land you back on the other language unintentionally. The way to do this is to switch to your preferred language first, then bookmark that page's address using your browser's normal bookmarking function.

This is especially useful if you return to the same page often, such as an FAQ page or an installation guide, since you skip switching language every single time. If the site restructures its links at some point in the future, an old bookmark could point to a page that has since moved — this is a normal reality of websites that keep updating, not something unique to the language switch.

When sending a link to someone, always switch to the language that recipient reads before copying it, because the link takes them to the page in whichever language you happened to have open at the moment of copying — not the language their own browser is set to. Doing this cuts down on confusion when the recipient opens the link and finds a language they cannot read.

If a link in the wrong language does slip through, it is not a major issue, since the recipient can switch language themselves right there on the page. The switch stays in the same place regardless of which link brought them in — they just need to know where to look for it, as described earlier on this page.

Some content pages do not yet carry a full translation

The site is gradually being translated and written up to be complete in both languages, but at any given time some pages may still exist only in English or only in Thai without a counterpart yet. If switching language lands you on a page that looks unusually short or does not match what you expected, it is possible that language's counterpart is still being prepared — not a fault in the switching mechanism itself.

In that case, the most straightforward approach is reading the content in whichever language is already available, or if the information is urgent and you cannot yet find it in your preferred language, reach out through the contact channels directly. The team can help explain the content in whichever language suits you, even while that particular page's translation is still pending.

Do not read a shorter or missing section as a sign of a security problem or incorrect information. Most of the time it is simply translation work still in progress. If unsure, compare it against the same page in the other language first.
How do I change the site language?

Common issues when the switch does not behave as expected

Sometimes tapping the switch feels like the page "doesn't move" and stays in the same language. This is usually the browser's cache holding onto an older version of the page. A basic fix is refreshing again right after switching, or closing and reopening the tab. If it still does not clear, try clearing the browser's cache — the exact steps for that differ by browser and device.

Another pattern is tapping the switch from a specific page and landing on the other language's homepage instead of the same page's counterpart, which can happen if that page has no translation yet, as covered in the previous section. What you can do is use the site's search to find the same content in the destination language, or reach out to the team directly if you cannot locate it.

Does email and notification language differ from the site language?

Switching language on the page only affects what you see on screen at that moment — it is not automatically tied to the language of order confirmation emails or system notifications. If you need to know what language an email will arrive in, check the information on your own order page directly, or ask the team for clarity before completing a purchase.

We cannot state in general, in advance, which language every order's emails will arrive in, since it depends on the specifics of that order and the settings tied to it at the time. What is certain is the content of the page you are reading right now, which changes instantly with the language switch described here.

Steps to change the language

  1. 1Look for the language switch in the header firstIt is usually at the top right on a computer, or inside the hamburger menu on a phone, shown as a short code like TH or EN.
  2. 2If not in the header, scroll down to the footerThe footer always repeats the same switch as a fallback, especially when the header hides itself while scrolling.
  3. 3Tap the language you wantIt takes you to that language's address for the same topic. If that topic has no translation yet, it may take you to that language's homepage instead.
  4. 4Confirm you are on the language you want before bookmarking or sharingRead the text on the page to confirm the language, then copy the address or bookmark it.
How do I change the site language?

Comparison table: switch placement by device

DeviceWhere it usually sitsNote
Desktop or laptopTop right of the header barVisible right away, no extra menu tap needed
Phone or tabletInside the hamburger menu at the top of the screenRequires opening the menu first to see the option
Any device, scrolled to the bottomThe footer barAlways a fallback, whether the header is hidden or not

Placement may shift slightly as the site is updated

Summary table: symptoms and what to do

SymptomWhat to do
Cannot find the language switchCheck both the header and footer, then refresh the page if still not found
Tapped it but the page seems unchangedRefresh again or try clearing the browser's cache
Switching sends you to the homepage instead of the same pageThat page may lack a translation yet; try searching for the same content in the destination language
Shared a link and the friend sees the wrong languageSwitch to your friend's language before copying the link next time
Unsure what language an email will arrive inCheck your own order page or ask the team directly

Checklist before sharing a link with someone else

  • Switch to the language the recipient reads before copying the link
  • Re-read the page text once more to confirm it is the intended language
  • If the page has no translation yet, tell the recipient in advance they may need to read the other language
  • Bookmark the link only in the language you plan to return to often

A short recap before the FAQ

In short, the switch lives in the header or footer, and tapping it takes you directly to that language's own address. The two languages' addresses differ on purpose so each can be bookmarked and shared separately. If you hit a page without a translation yet, or the switch behaves oddly, try refreshing first, then contact the team if it still does not resolve.

FAQ

Does changing language also change currency or prices?+

Changing language only affects the text on the page. It is not automatically tied to the currency or prices shown. To check pricing or currency, look at the plan's own details page or your order page directly.

If my browser is set to English, will the site open in English automatically?+

We cannot state that automatic behaviour with certainty, since it depends on which link you arrived from and the channel you clicked through. The most reliable approach is checking the text once you land on the page and switching manually with the header or footer option if it is not what you want.

Why does one language's page sometimes look much shorter than the other's?+

This is usually because that language's content is still being written or translated to completion, not a fault in the switching mechanism. If you need fuller content, compare with the other language in the meantime, or ask the team if the information is urgent.

Does switching language on the website also affect a mobile app's language?+

This page describes the website's behaviour specifically. If you use a different channel from the website, that channel's language setting may be separate. Check that channel's own language setting on its own terms.

How can I request another language besides Thai and English?+

Reach out via LINE or the email listed on this page. The team welcomes every suggestion, but cannot confirm in advance when or whether a new language would be added, since that depends on the team's own plans over time.

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Instagram and TikTok have no web share button, so we open your phone's share sheet or copy the link instead.

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