Number exchange on page does not work?

The matelso script not only collects the most important web data of the visitor, but can also easily replace the existing phone number on a website with a call tracking number from a dynamic pool. #

Among other things, this can be done with a matching search text. The matelso script then searches the HTML content of the page for exactly this search text and replaces it with the call tracking number.

More details on how to set this up can be found here:

How to configure Search and Replace?

If the exchange of the search text does not work, there are a few common errors to check.


1. Is the search text correct? #

The script only works with exact matches. The search text must therefore be entered in each formatting variant. This also applies to text that may be hidden behind a link. A typical example is the tel-link variant:

In this case, both the search text 06301 123 456 798 and the search text +49123456798 must be entered.


2. Is the matelso cookie set? #

The matelso script must set a cookie to ensure functionality. What kind of cookies these are exactly is explained in more detail here:

matelso cookies

If the matelso cookie is not set by a cookie management system or blocker, the exchange cannot take place. To solve this, simply allow the matelso cookie.


3. Is the matelso script still on the website? #

Sometimes there were changes to the website and as a result the script was removed. The matelso script must be built into the HTML code of the page. You can find more information about where to find the script here:

Where can I find the matelso script for my website?


4. Is the Channel- or Poolselector active? #

The channel selector and the pool selector filter the website visitors so that the call tracking number is only displayed in certain situations/conditions. This means that if the call tracking number is not exchanged, it is possible that these conditions were not set at the time.


5. Does the HTML content with the search text contain a “ ”? #

A non-breaking space, or protected space, is a position in the HTML code that cannot be changed. Our script cannot work if they are set. If a search text contains a non-breaking space ( ), it must be removed beforehand.

In most cases it is enough to check the web page content briefly in the browser:

Detect NBSP in HTML:

matelso platform
matelso optimally connects telephony, chat, email or contact forms. Our intelligent lead management simplifies communication and enables you to achieve better marketing results.
matelso platform in detail
Call Tracking

MarTech phone call analysis software for companies, agencies & portals to get valuable data from inbound calls.

Call Tracking in detail
Marketing Use Case
How the matelso platform boosts your marketing.
Sales Use Case
How the matelso platform boosts your sales process.
E-Commerce Showcase

Showcase of the matelso platform in E-Commerce

What capabilities does our matelso platform offer? All features at a glance.
Do-it-with-me instead of DIY: Work with our consultants to really get the most out of the platform.
Do-it-with-me instead of DIY: Achieving more together with our consultants.
Use Cases

Three industries that should rely on call tracking: B2B, automotive and agencies!

Blog Through our blog, we share knowledge and insights with our readers - always useful, always interesting.
Webinars With our matelso webinars, you can experience our MarTech technologies and solutions and get valuable tips for your online marketing.
Knowledge Base On our matelso Knowledge Base you can delve deep into the engine room of our Call Tracking and MarTech technology.


Career Creating a new data-based era of communication - if you share this vision, we should get to know each other.
Partner model Help your customers better understand and manage their customer journey - while also generating a new revenue stream.


About Us The MarTech company matelso - we stand for innovative and simple solutions that make your marketing more efficient.
Newsroom News, press releases and more - all news about matelso at a glance.