Pixel Code

Once you've registered a campaign, generate the tracking pixel code and embed it on your pages or creatives.

Generating the pixel tag

The pixel is a single <script> tag with your campaign ID:

<script src="https://l.csfy.me/je?c={campaign_id}"></script>

Replace {campaign_id} with the ID returned from pixel registration.

When loaded, the script resolves to a small payload that captures the page URL and reports it back to Classify:

window._turquoise = [
    "s51dSW4gUyFfIzdHlB8AFnB4FWwHf3EDcwWZUPoyIA==",
];
document.head.appendChild(
Object.assign(document.createElement("script"), {
    src: "https://t.csfy.net/p/latest.js",
    async: true,
    })
);

Macros

The pixel supports arbitrary key-value pairs appended as query parameters. This is especially powerful when combined with DSP macros, which expand into auction-time metadata.

Example: Google Ad Manager

Google Ad Manager's %%SITE%% macro expands into the auction domain. Pass it through to cross-reference the auction domain against the actual serving domain:

<script src="https://l.csfy.me/je?c={campaign_id}&google-site=%%SITE%%"></script>

In your reports, you'll see a google-site column with the expanded macro value. Comparing this to the actual serving URL is a powerful tool for catching inventory misrepresentation.

Common macros

These macros are available across most major DSPs:

Macro	Description
`INVENTORY_DOMAIN`	The domain of the inventory where the ad served
`INVENTORY_SOURCE`	The inventory source (e.g. web, app, CTV)
`DEAL_ID`	The deal ID associated with the impression
`PUBLISHER_ID`	The publisher identifier
`PLACEMENT_ID`	The ad placement identifier
`BID_URL`	The URL associated with the bid request

PubMatic macros

If you're running through PubMatic, these macros are commonly passed:

<script src="https://l.csfy.me/je?c={campaign_id}&deal_id=[DEAL_ID]&pub=[PUBLISHER_ID]&inv_domain=[INVENTORY_DOMAIN]&inv_source=[INVENTORY_SOURCE]"></script>

DSP macro documentation

Each DSP has its own macro syntax. Refer to your platform's documentation:

The Trade Desk — "tracking tag"
Google Ad Manager — "%%MACRO%%" format
PubMatic — "[MACRO]" format

Embedding the pixel

For advertisers

Add the pixel as a custom impression tracker attached to your creatives in your DSP. While each platform uses slightly different terminology, they all support third-party impression tracking:

DSP	Feature name	Documentation
The Trade Desk	Tracking Tag	Docs
PubMatic	Third Party Pixel	Docs
Google Ad Manager	Third Party Impression URL	Docs

When configuring, select JavaScript as the format and enter either the full <script> tag or just the src URL. Include any macros you want to track.

For publishers

Embed the pixel tag directly in the <head> or <body> of your pages. The pixel fires on every page load, capturing both human and non-human traffic for analysis.

<head>
  <!-- Classify Pixel -->
  <script src="https://l.csfy.me/je?c={campaign_id}"></script>
</head>

For publisher use cases, macros are typically not needed — the pixel captures the full URL and visitor metadata automatically.

Generating the pixel tag​

Macros​

Example: Google Ad Manager​

Common macros​

PubMatic macros​

DSP macro documentation​

Embedding the pixel​

For advertisers​

For publishers​