## Table of Contents

- [Embed-specific speedups](#embed-specific-speedups)
  - [CLI Microlink API example](#cli-microlink-api-example)
  - [cURL Microlink API example](#curl-microlink-api-example)
  - [JavaScript Microlink API example](#javascript-microlink-api-example)
  - [Python Microlink API example](#python-microlink-api-example)
  - [Ruby Microlink API example](#ruby-microlink-api-example)
  - [PHP Microlink API example](#php-microlink-api-example)
  - [Golang Microlink API example](#golang-microlink-api-example)
  - [CLI Microlink API example](#cli-microlink-api-example-1)
  - [cURL Microlink API example](#curl-microlink-api-example-1)
  - [JavaScript Microlink API example](#javascript-microlink-api-example-1)
  - [Python Microlink API example](#python-microlink-api-example-1)
  - [Ruby Microlink API example](#ruby-microlink-api-example-1)
  - [PHP Microlink API example](#php-microlink-api-example-1)
  - [Golang Microlink API example](#golang-microlink-api-example-1)
- [Cache strategy](#cache-strategy)
  - [CLI Microlink API example](#cli-microlink-api-example-2)
  - [cURL Microlink API example](#curl-microlink-api-example-2)
  - [JavaScript Microlink API example](#javascript-microlink-api-example-2)
  - [Python Microlink API example](#python-microlink-api-example-2)
  - [Ruby Microlink API example](#ruby-microlink-api-example-2)
  - [PHP Microlink API example](#php-microlink-api-example-2)
  - [Golang Microlink API example](#golang-microlink-api-example-2)
- [Hot-linking and the embed URL](#hot-linking-and-the-embed-url)
- [SDK lazy-loading](#sdk-lazy-loading)
- [When you don't need fresh data](#when-you-dont-need-fresh-data)
- [Verify caching is working](#verify-caching-is-working)
- [Next step](#next-step)

---

[API](https://microlink.io/docs/api/getting-started/overview)

[GUIDES](https://microlink.io/docs/guides) [MQL](https://microlink.io/docs/mql/getting-started/overview) [SDK](https://microlink.io/docs/sdk/getting-started/overview) [CARDS](https://microlink.io/docs/cards/getting-started/overview)

API GUIDES MQL SDK CARDS

Getting Started

[Overview](https://microlink.io/docs/guides)

[What is Microlink](https://microlink.io/docs/guides/what-is-microlink)

[Screenshot](https://microlink.io/docs/guides/screenshot)

[Customizing output](https://microlink.io/docs/guides/screenshot/customizing-output)

[Browser settings](https://microlink.io/docs/guides/screenshot/browser-settings)

[Page interaction](https://microlink.io/docs/guides/screenshot/page-interaction)

[Delivery and embedding](https://microlink.io/docs/guides/screenshot/embedding)

[Caching and performance](https://microlink.io/docs/guides/screenshot/caching-and-performance)

[Private pages](https://microlink.io/docs/guides/screenshot/private-pages)

[Troubleshooting](https://microlink.io/docs/guides/screenshot/troubleshooting)

[Data extraction](https://microlink.io/docs/guides/data-extraction)

[Defining rules](https://microlink.io/docs/guides/data-extraction/defining-rules)

[Page preparation](https://microlink.io/docs/guides/data-extraction/page-preparation)

[Delivery and response shaping](https://microlink.io/docs/guides/data-extraction/delivery-and-response)

[Caching and performance](https://microlink.io/docs/guides/data-extraction/caching-and-performance)

[Private pages](https://microlink.io/docs/guides/data-extraction/private-pages)

[Troubleshooting](https://microlink.io/docs/guides/data-extraction/troubleshooting)

[Embed](https://microlink.io/docs/guides/embed)

[SDK](https://microlink.io/docs/guides/embed/sdk)

[Iframe parameter](https://microlink.io/docs/guides/embed/iframe)

[Custom HTML/CSS](https://microlink.io/docs/guides/embed/metadata-api)

[Custom previews with AI](https://microlink.io/docs/guides/embed/custom-previews-with-ai)

[Caching and performance](https://microlink.io/docs/guides/embed/caching-and-performance)

[Private pages and proxy](https://microlink.io/docs/guides/embed/private-pages-and-proxy)

[Troubleshooting](https://microlink.io/docs/guides/embed/troubleshooting)

[Markdown](https://microlink.io/docs/guides/markdown)

[Choosing scope](https://microlink.io/docs/guides/markdown/choosing-scope)

[Delivery and response shaping](https://microlink.io/docs/guides/markdown/delivery-and-response)

[Function](https://microlink.io/docs/guides/function)

[PDF](https://microlink.io/docs/guides/pdf)

[Page size and layout](https://microlink.io/docs/guides/pdf/page-size-and-layout)

[Page preparation](https://microlink.io/docs/guides/pdf/page-preparation)

[Delivery and embedding](https://microlink.io/docs/guides/pdf/embedding)

[Caching and performance](https://microlink.io/docs/guides/pdf/caching-and-performance)

[Private pages](https://microlink.io/docs/guides/pdf/private-pages)

[Troubleshooting](https://microlink.io/docs/guides/pdf/troubleshooting)

[Metadata](https://microlink.io/docs/guides/metadata)

[Choosing fields](https://microlink.io/docs/guides/metadata/choosing-fields)

[Extending results](https://microlink.io/docs/guides/metadata/extending-results)

[Delivery and response shaping](https://microlink.io/docs/guides/metadata/delivery-and-response)

[Page preparation](https://microlink.io/docs/guides/metadata/page-preparation)

[Caching and performance](https://microlink.io/docs/guides/metadata/caching-and-performance)

[Private pages](https://microlink.io/docs/guides/metadata/private-pages)

[Troubleshooting](https://microlink.io/docs/guides/metadata/troubleshooting)

[Insights](https://microlink.io/docs/guides/insights)

[Technology detection](https://microlink.io/docs/guides/insights/technology-detection)

[Lighthouse reports](https://microlink.io/docs/guides/insights/lighthouse-reports)

[Caching and performance](https://microlink.io/docs/guides/insights/caching-and-performance)

[Troubleshooting](https://microlink.io/docs/guides/insights/troubleshooting)

[Common patterns](https://microlink.io/docs/guides/common/caching)

[Caching patterns](https://microlink.io/docs/guides/common/caching)

[Private pages](https://microlink.io/docs/guides/common/private-pages)

[Proxy](https://microlink.io/docs/guides/common/proxy)

[Troubleshooting](https://microlink.io/docs/guides/common/troubleshooting)

[Production patterns](https://microlink.io/docs/guides/common/production-patterns)

API GUIDES MQL SDK CARDS

Getting Started

[Overview](https://microlink.io/docs/guides)

[What is Microlink](https://microlink.io/docs/guides/what-is-microlink)

[Screenshot](https://microlink.io/docs/guides/screenshot)

[Customizing output](https://microlink.io/docs/guides/screenshot/customizing-output)

[Browser settings](https://microlink.io/docs/guides/screenshot/browser-settings)

[Page interaction](https://microlink.io/docs/guides/screenshot/page-interaction)

[Delivery and embedding](https://microlink.io/docs/guides/screenshot/embedding)

[Caching and performance](https://microlink.io/docs/guides/screenshot/caching-and-performance)

[Private pages](https://microlink.io/docs/guides/screenshot/private-pages)

[Troubleshooting](https://microlink.io/docs/guides/screenshot/troubleshooting)

[Data extraction](https://microlink.io/docs/guides/data-extraction)

[Defining rules](https://microlink.io/docs/guides/data-extraction/defining-rules)

[Page preparation](https://microlink.io/docs/guides/data-extraction/page-preparation)

[Delivery and response shaping](https://microlink.io/docs/guides/data-extraction/delivery-and-response)

[Caching and performance](https://microlink.io/docs/guides/data-extraction/caching-and-performance)

[Private pages](https://microlink.io/docs/guides/data-extraction/private-pages)

[Troubleshooting](https://microlink.io/docs/guides/data-extraction/troubleshooting)

[Embed](https://microlink.io/docs/guides/embed)

[SDK](https://microlink.io/docs/guides/embed/sdk)

[Iframe parameter](https://microlink.io/docs/guides/embed/iframe)

[Custom HTML/CSS](https://microlink.io/docs/guides/embed/metadata-api)

[Custom previews with AI](https://microlink.io/docs/guides/embed/custom-previews-with-ai)

[Caching and performance](https://microlink.io/docs/guides/embed/caching-and-performance)

[Private pages and proxy](https://microlink.io/docs/guides/embed/private-pages-and-proxy)

[Troubleshooting](https://microlink.io/docs/guides/embed/troubleshooting)

[Markdown](https://microlink.io/docs/guides/markdown)

[Choosing scope](https://microlink.io/docs/guides/markdown/choosing-scope)

[Delivery and response shaping](https://microlink.io/docs/guides/markdown/delivery-and-response)

[Function](https://microlink.io/docs/guides/function)

[PDF](https://microlink.io/docs/guides/pdf)

[Page size and layout](https://microlink.io/docs/guides/pdf/page-size-and-layout)

[Page preparation](https://microlink.io/docs/guides/pdf/page-preparation)

[Delivery and embedding](https://microlink.io/docs/guides/pdf/embedding)

[Caching and performance](https://microlink.io/docs/guides/pdf/caching-and-performance)

[Private pages](https://microlink.io/docs/guides/pdf/private-pages)

[Troubleshooting](https://microlink.io/docs/guides/pdf/troubleshooting)

[Metadata](https://microlink.io/docs/guides/metadata)

[Choosing fields](https://microlink.io/docs/guides/metadata/choosing-fields)

[Extending results](https://microlink.io/docs/guides/metadata/extending-results)

[Delivery and response shaping](https://microlink.io/docs/guides/metadata/delivery-and-response)

[Page preparation](https://microlink.io/docs/guides/metadata/page-preparation)

[Caching and performance](https://microlink.io/docs/guides/metadata/caching-and-performance)

[Private pages](https://microlink.io/docs/guides/metadata/private-pages)

[Troubleshooting](https://microlink.io/docs/guides/metadata/troubleshooting)

[Insights](https://microlink.io/docs/guides/insights)

[Technology detection](https://microlink.io/docs/guides/insights/technology-detection)

[Lighthouse reports](https://microlink.io/docs/guides/insights/lighthouse-reports)

[Caching and performance](https://microlink.io/docs/guides/insights/caching-and-performance)

[Troubleshooting](https://microlink.io/docs/guides/insights/troubleshooting)

[Common patterns](https://microlink.io/docs/guides/common/caching)

[Caching patterns](https://microlink.io/docs/guides/common/caching)

[Private pages](https://microlink.io/docs/guides/common/private-pages)

[Proxy](https://microlink.io/docs/guides/common/proxy)

[Troubleshooting](https://microlink.io/docs/guides/common/troubleshooting)

[Production patterns](https://microlink.io/docs/guides/common/production-patterns)

[Copy for LLM](https://microlink.io/docs/guides/embed/caching-and-performance.md "Copy content for LLM")

\|

[View as Markdown](https://microlink.io/docs/guides/embed/caching-and-performance.md "View content as Markdown")

Embeds are read-mostly. The same URL renders the same card thousands of times. Lean into that — cache aggressively and serve from the edge.

This page covers embed-specific performance tactics. For the universal caching controls (`ttl`, `staleTtl`, `force`, and how to read cache headers), see [caching patterns](https://microlink.io/docs/guides/common/caching).

## Embed-specific speedups

The single biggest win for embed-only requests is matching the response shape to your renderer. Three patterns:

1.

    **Static markup with direct `embed`** — for `<img>` and `<meta og:image>`, return the asset itself. The CDN serves bytes directly with no JSON parsing in your stack.

    ```html
    ![](https://api.microlink.io?url=https://stripe.com&embed=image.url)
    ```

2.

    **Filter the JSON when you only need a few fields** — `filter=title,description,image.url` shrinks the payload and keeps your renderer's hot path tight.

    The following examples show how to use the Microlink API with CLI, cURL, JavaScript, Python, Ruby, PHP & Golang, targeting 'https://stripe.com' URL with 'filter' API parameter:

    ### CLI Microlink API example

    ```bash
    microlink https://stripe.com&filter=title,description,image.url,logo.url
    ```

    ### cURL Microlink API example

    ```bash
    curl -G "https://api.microlink.io" \
      -d "url=https://stripe.com" \
      -d "filter=title,description,image.url,logo.url"
    ```

    ### JavaScript Microlink API example

    ```javascript
    import mql from '@microlink/mql'

    const { data } = await mql('https://stripe.com', {
      filter: "title,description,image.url,logo.url"
    })
    ```

    ### Python Microlink API example

    ```python
    import requests

    url = "https://api.microlink.io/"

    querystring = {
        "url": "https://stripe.com",
        "filter": "title,description,image.url,logo.url"
    }

    response = requests.get(url, params=querystring)

    print(response.json())
    ```

    ### Ruby Microlink API example

    ```ruby
    require 'uri'
    require 'net/http'

    base_url = "https://api.microlink.io/"

    params = {
      url: "https://stripe.com",
      filter: "title,description,image.url,logo.url"
    }

    uri = URI(base_url)
    uri.query = URI.encode_www_form(params)

    http = Net::HTTP.new(uri.host, uri.port)
    http.use_ssl = true

    request = Net::HTTP::Get.new(uri)
    response = http.request(request)

    puts response.body
    ```

    ### PHP Microlink API example

    ```php
    <?php

    $baseUrl = "https://api.microlink.io/";

    $params = [
        "url" => "https://stripe.com",
        "filter" => "title,description,image.url,logo.url"
    ];

    $query = http_build_query($params);
    $url = $baseUrl . '?' . $query;

    $curl = curl_init();

    curl_setopt_array($curl, [
        CURLOPT_URL => $url,
        CURLOPT_RETURNTRANSFER => true,
        CURLOPT_ENCODING => "",
        CURLOPT_MAXREDIRS => 10,
        CURLOPT_TIMEOUT => 30,
        CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
        CURLOPT_CUSTOMREQUEST => "GET"
    ]);

    $response = curl_exec($curl);
    $err = curl_error($curl);

    curl_close($curl);

    if ($err) {
        echo "cURL Error #: " . $err;
    } else {
        echo $response;
    }
    ```

    ### Golang Microlink API example

    ```
    package main

    import (
        "fmt"
        "net/http"
        "net/url"
        "io"
    )

    func main() {
        baseURL := "https://api.microlink.io"

        u, err := url.Parse(baseURL)
        if err != nil {
            panic(err)
        }
        q := u.Query()
        q.Set("url", "https://stripe.com")
        q.Set("filter", "title,description,image.url,logo.url")
        u.RawQuery = q.Encode()

        req, err := http.NewRequest("GET", u.String(), nil)
        if err != nil {
            panic(err)
        }

        client := &http.Client{}
        resp, err := client.Do(req)
        if err != nil {
            panic(err)
        }
        defer resp.Body.Close()

        body, err := io.ReadAll(resp.Body)
        if err != nil {
            panic(err)
        }

        fmt.Println(string(body))
    }
    ```

    ```javascript
    import mql from '@microlink/mql'

    const { data } = await mql('https://stripe.com', {

      filter: "title,description,image.url,logo.url"

    })
    ```

3.

    **Disable metadata extraction when you only want a screenshot or iframe** — `meta=false` skips the metadata stage entirely.

    The following examples show how to use the Microlink API with CLI, cURL, JavaScript, Python, Ruby, PHP & Golang, targeting 'https://stripe.com' URL with 'screenshot', 'meta' & 'embed' API parameters:

    ### CLI Microlink API example

    ```bash
    microlink https://stripe.com&screenshot&embed=screenshot.url
    ```

    ### cURL Microlink API example

    ```bash
    curl -G "https://api.microlink.io" \
      -d "url=https://stripe.com" \
      -d "screenshot=true" \
      -d "meta=false" \
      -d "embed=screenshot.url"
    ```

    ### JavaScript Microlink API example

    ```javascript
    import mql from '@microlink/mql'

    const { data } = await mql('https://stripe.com', {
      screenshot: true,
      meta: false,
      embed: "screenshot.url"
    })
    ```

    ### Python Microlink API example

    ```python
    import requests

    url = "https://api.microlink.io/"

    querystring = {
        "url": "https://stripe.com",
        "screenshot": "true",
        "meta": "false",
        "embed": "screenshot.url"
    }

    response = requests.get(url, params=querystring)

    print(response.json())
    ```

    ### Ruby Microlink API example

    ```ruby
    require 'uri'
    require 'net/http'

    base_url = "https://api.microlink.io/"

    params = {
      url: "https://stripe.com",
      screenshot: "true",
      meta: "false",
      embed: "screenshot.url"
    }

    uri = URI(base_url)
    uri.query = URI.encode_www_form(params)

    http = Net::HTTP.new(uri.host, uri.port)
    http.use_ssl = true

    request = Net::HTTP::Get.new(uri)
    response = http.request(request)

    puts response.body
    ```

    ### PHP Microlink API example

    ```php
    <?php

    $baseUrl = "https://api.microlink.io/";

    $params = [
        "url" => "https://stripe.com",
        "screenshot" => "true",
        "meta" => "false",
        "embed" => "screenshot.url"
    ];

    $query = http_build_query($params);
    $url = $baseUrl . '?' . $query;

    $curl = curl_init();

    curl_setopt_array($curl, [
        CURLOPT_URL => $url,
        CURLOPT_RETURNTRANSFER => true,
        CURLOPT_ENCODING => "",
        CURLOPT_MAXREDIRS => 10,
        CURLOPT_TIMEOUT => 30,
        CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
        CURLOPT_CUSTOMREQUEST => "GET"
    ]);

    $response = curl_exec($curl);
    $err = curl_error($curl);

    curl_close($curl);

    if ($err) {
        echo "cURL Error #: " . $err;
    } else {
        echo $response;
    }
    ```

    ### Golang Microlink API example

    ```
    package main

    import (
        "fmt"
        "net/http"
        "net/url"
        "io"
    )

    func main() {
        baseURL := "https://api.microlink.io"

        u, err := url.Parse(baseURL)
        if err != nil {
            panic(err)
        }
        q := u.Query()
        q.Set("url", "https://stripe.com")
        q.Set("screenshot", "true")
        q.Set("meta", "false")
        q.Set("embed", "screenshot.url")
        u.RawQuery = q.Encode()

        req, err := http.NewRequest("GET", u.String(), nil)
        if err != nil {
            panic(err)
        }

        client := &http.Client{}
        resp, err := client.Do(req)
        if err != nil {
            panic(err)
        }
        defer resp.Body.Close()

        body, err := io.ReadAll(resp.Body)
        if err != nil {
            panic(err)
        }

        fmt.Println(string(body))
    }
    ```

    ```javascript
    import mql from '@microlink/mql'

    const { data } = await mql('https://stripe.com', {

      screenshot: true,

      meta: false,

      embed: "screenshot.url"

    })
    ```

    Useful for OG images and dynamic banners — no metadata work, just the capture.

## Cache strategy

For the controls that apply to every workflow — `ttl`, `staleTtl`, `force`, and how to verify caching through response headers — see [caching patterns](https://microlink.io/docs/guides/common/caching).

A recommended production setup for embeds:

The following examples show how to use the Microlink API with CLI, cURL, JavaScript, Python, Ruby, PHP & Golang, targeting 'https://stripe.com' URL with 'ttl' & 'staleTtl' API parameters:

### CLI Microlink API example

```bash
microlink https://stripe.com&ttl=1d&staleTtl=0
```

### cURL Microlink API example

```bash
curl -G "https://api.microlink.io" \
  -d "url=https://stripe.com" \
  -d "ttl=1d" \
  -d "staleTtl=0"
```

### JavaScript Microlink API example

```javascript
import mql from '@microlink/mql'

const { data } = await mql('https://stripe.com', {
  ttl: "1d",
  staleTtl: 0
})
```

### Python Microlink API example

```python
import requests

url = "https://api.microlink.io/"

querystring = {
    "url": "https://stripe.com",
    "ttl": "1d",
    "staleTtl": "0"
}

response = requests.get(url, params=querystring)

print(response.json())
```

### Ruby Microlink API example

```ruby
require 'uri'
require 'net/http'

base_url = "https://api.microlink.io/"

params = {
  url: "https://stripe.com",
  ttl: "1d",
  staleTtl: "0"
}

uri = URI(base_url)
uri.query = URI.encode_www_form(params)

http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = true

request = Net::HTTP::Get.new(uri)
response = http.request(request)

puts response.body
```

### PHP Microlink API example

```php
<?php

$baseUrl = "https://api.microlink.io/";

$params = [
    "url" => "https://stripe.com",
    "ttl" => "1d",
    "staleTtl" => "0"
];

$query = http_build_query($params);
$url = $baseUrl . '?' . $query;

$curl = curl_init();

curl_setopt_array($curl, [
    CURLOPT_URL => $url,
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_ENCODING => "",
    CURLOPT_MAXREDIRS => 10,
    CURLOPT_TIMEOUT => 30,
    CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
    CURLOPT_CUSTOMREQUEST => "GET"
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
    echo "cURL Error #: " . $err;
} else {
    echo $response;
}
```

### Golang Microlink API example

```
package main

import (
    "fmt"
    "net/http"
    "net/url"
    "io"
)

func main() {
    baseURL := "https://api.microlink.io"

    u, err := url.Parse(baseURL)
    if err != nil {
        panic(err)
    }
    q := u.Query()
    q.Set("url", "https://stripe.com")
    q.Set("ttl", "1d")
    q.Set("staleTtl", "0")
    u.RawQuery = q.Encode()

    req, err := http.NewRequest("GET", u.String(), nil)
    if err != nil {
        panic(err)
    }

    client := &http.Client{}
    resp, err := client.Do(req)
    if err != nil {
        panic(err)
    }
    defer resp.Body.Close()

    body, err := io.ReadAll(resp.Body)
    if err != nil {
        panic(err)
    }

    fmt.Println(string(body))
}
```

```javascript
import mql from '@microlink/mql'

const { data } = await mql('https://stripe.com', {

  ttl: "1d",

  staleTtl: 0

})
```

Cache for a day, serve stale instantly while refreshing in the background. Requires a

PRO

plan.

For high-traffic embed surfaces — comment widgets, RSS readers, AI search results — pair `staleTtl: 0` with a long `ttl` so users always hit cache and only the background refresh touches the origin.

## Hot-linking and the embed URL

The `embed=...` URL is itself a CDN-cacheable asset. Browsers and downstream proxies (Slack, Discord, email clients) cache it by URL. Two consequences:

- **Stable URLs cache best.** Avoid appending random query parameters or session IDs.
- **`force=true` defeats this.** Use `force` only when you intentionally want a regeneration — never as a default.

If you need the URL to change when source content changes (cache busting), append a content hash you control:

```html
![](https://api.microlink.io?url=https://your-site.com/post&screenshot&embed=screenshot.url&v=42)
```

Bumping `v` invalidates downstream caches without touching Microlink's behavior.

## SDK lazy-loading

The SDK uses `IntersectionObserver` and only fires its API call when each preview enters the viewport. Pages with hundreds of embedded links still hit a fast first paint. To preload above-the-fold cards, tighten the lazy options:

```jsx
<Microlink url='...' lazy={{ rootMargin: '400px' }} />
```

See [lazy reference](https://microlink.io/docs/sdk/parameters/lazy).

## When you don't need fresh data

Static sites and SSR builds often have the metadata at build time. Skip the runtime call:

```jsx
<Microlink

  url='https://example.com/post'

  fetchData={false}

  setData={prefetchedData}

/>
```

That removes the API call entirely. Combined with build-time crawling, you ship zero-API-call embeds. See [setData reference](https://microlink.io/docs/sdk/parameters/set-data).

## Verify caching is working

Check the response headers when you suspect a slow embed:

| Header            | What it tells you                                     |
| ----------------- | ----------------------------------------------------- |
| `x-cache-status`  | `HIT` (cache), `MISS` (fresh), `BYPASS` (forced)      |
| `x-cache-ttl`     | Effective cache lifetime in milliseconds              |
| `x-response-time` | A short value (under ~50ms) usually means a cache hit |

For the full pattern, see [verify caching behavior](https://microlink.io/docs/guides/common/caching#verify-caching-behavior).

## Next step

Learn how to embed authenticated dashboards and pages protected by antibot systems in [private pages and proxy](https://microlink.io/docs/guides/embed/private-pages-and-proxy).

Last updated on May 14, 2026

[Edit on GitHub](https://github.com/microlinkhq/www/blob/master/src/content/docs/guides/embed/caching-and-performance.md)