# Link clickability

### iOS

iOS uses Apple’s built-in data detection (Data Detectors) to recognize links in message text. When a URL is recognized, it becomes tappable; standalone URLs may also show a preview card.

**Reliable format**

* ✅ Always tappable: `https://mia.tel` (explicit scheme)

**No-scheme URLs can be inconsistent**

* ⚠️ Domain-only text like `example.com` is often recognized, but recognition may depend on iOS heuristics and the TLD.
* ⚠️ Less common TLDs may remain plain text unless you add `https://`.

{% hint style="info" %}
**iOS recognized TLDs list :** see the table here - [TLDs recognized by iOS](/docs/sms/link-clickability/tlds-recognized-by-ios.md).
{% endhint %}

{% hint style="warning" %}
**Recommendation for iOS:** always send full URLs with `https://` (example: `https://example.com`).
{% endhint %}

<figure><img src="/files/wZ6ee4Lo4Ll352xeNPVr" alt=""><figcaption><p>An example of a tappable and untappable link</p></figcaption></figure>

### Android

Android SMS apps commonly rely on built-in linkification utilities (for example, Linkify / URL patterns). Many apps can detect both:

* full URLs like `https://www.mia.tel`
* and domain-only text like `mia.tel`

However, behavior may vary by Android version and by the SMS app.

**Typical behavior in SMS apps**

* ✅ `https://mia.tel` → tappable (reliable)
* ✅ `mia.tel` → often tappable (depends on the SMS app)

{% hint style="info" %}
Even if `mia.tel` is clickable without `https://` on many Android devices, use `https://` to keep behavior consistent across iOS and Android.
{% endhint %}

### Comparison table

| Message text      | iOS (SMS / iMessage)                             | Android (SMS apps)                   |
| ----------------- | ------------------------------------------------ | ------------------------------------ |
| `https://mia.tel` | Clickable (reliable)                             | Clickable (reliable)                 |
| `example.com`     | Often clickable, but not guaranteed for all TLDs | Often clickable (depends on SMS app) |
| `www.example.com` | Often clickable                                  | Often clickable                      |

### Recommendations to improve CTR when sending links

1. **Always send full URLs with `https://`**
   * Best cross-platform reliability (iOS + Android)
2. **Use one canonical format everywhere**
   * Prefer `https://…` over “domain-only” URLs
3. **Avoid punctuation immediately after the URL**
   * Prefer `https://example.com` over `https://example.com.`
4. **Keep links short and clean**
   * Avoid line breaks inside the URL
   * Avoid wrapping URLs in quotes/brackets when possible
5. **Test on real devices before a major send**
   * iPhone (SMS / iMessage)
   * Android (your top devices / SMS apps)


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