What are Enhanced Conversions?

Google Ads Advanced Conversions is a privacy-focused feature that improves the accuracy of conversion measurement on your website. 2026 It is the most powerful weapon of advertisers in the digital ecosystem, where third party cookies have been completely discontinued as of the year.

This technology securely hashes (SHA-256) the first-party data (e-mail address, phone number, name, home address) provided by users during a conversion on your website (sales, form filling, etc.) and sends it to Google.

Google matches this hashed data with data in its own database (users logged into their Google accounts). In this way, even in cases where cookies are blocked, it can be determined which ad click the conversion came from.

Privacy Focused

Data is never sent in clear text. It is encrypted with SHA-256 and becomes KVKK and GDPR compatible.

High Accuracy

You can track users cross-device without being affected by cookie loss.

AI Optimization

It increases ROAS by providing better quality data to Smart Bidding algorithms.

Easy Integration

It can be quickly set up with Google Tag Manager or Global Site Tag (gtag.js).

Why Is It Critically Important in 2026?

World Without Cookies

95% of browsers now block third-party cookies. Traditional pixel tracking has become inefficient.

Journey Between Devices

Users see the ad on mobile and buy on desktop. Advanced transformations bridge this disconnect.

Better ROAS

Missing data means wrong optimization. Use your advertising budget efficiently by improving data quality.

Eka Sunucu Recommendation: To minimize data loss, you should use not only client-side but also server-side monitoring methods. for this Türkiye Location VDS You can review our packages.

How Does It Work? (Technical Overview)

Step 1: The user clicks on your ad and comes to your site.
Step 2: The user performs a conversion (Purchase, form, etc.) and enters personal information (Email, Tel).
Step 3: The code on your website (GTM or gtag.js) captures this data.
Step 4: Data is irreversibly encrypted (hashed) with the SHA-256 algorithm.
Step 5: Hashed data is securely transmitted to Google.
Step 6: Google matches this hash with hashes in its database and assigns the conversion to the correct ad.

Installation Guide (Coding and GTM)

There are two main ways to set up advanced conversions: Google Tag Manager (Recommended) or Global Site Tag (gtag.js). Below are detailed code examples for both methods.

Method 1: Installation with Global Site Tag (gtag.js)

If directly on your site gtag.js If you are using it, you should add a structure like the following to your conversion page. Data needs to be retrieved dynamically.

conversion_page.js

// IMPORTANT: This code block must run after the conversion occurs. // You must fill the variables (email, phone, etc.) dynamically. const conversion_data = { "email": userEmail, // Ex: '[email protected]' "phone_number": userPhone, // Ex: '+905551234567' "address": { "first_name": userName, "last_name": userSurname, "street": userAddress, "city": userCity, "region": userRegion, "postal_code": userZip, "country": "TR" } }; gtag('event', 'conversion', { 'send_to': 'AW-CONVERSION_ID/LABEL', // Write your own ID 'value': 1500.00, 'currency': 'TRY', 'transaction_id': 'ORDER_12345', //Advanced Conversion Parameter: 'enhanced_conversion_data': conversion_data });

Method 2: Installation with Google Tag Manager (DataLayer)

The healthiest method is to use DataLayer. Your developer must add the following DataLayer code to the "Thank You" page. You can then read this data from the GTM panel and link it to the Google Ads tag.

thank_you_page_datalayer.js

windows.dataLayer = windows.dataLayer || []; windows.dataLayer.push({ 'event': 'purchase', 'ecommerce': { 'transaction_id': 'ORD-2026-999', 'value': 2500, 'currency': 'TRY' }, // Personal Data (For Advanced Conversion) 'user_data': { 'email': '[email protected]', // Unhashed raw data 'phone_number': '+905320000000', 'address': { 'first_name': 'Ahmet', 'last_name': 'Yilmaz', 'street': 'Ataturk Cad. No:1', 'city': 'Istanbul', 'region': 'Marmara', 'postal_code': '34000', 'country': 'TR' } } });

* You need to create a "User Provided Data" variable in GTM and match these dataLayer variables.

Maximum Efficiency with Server-Side GTM

Break the boundaries of browser-based tracking. To avoid ad blockers and maximize data security Server-Side Tagging use it.

For this, you need to host a GTM container on your own server.

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Why Server-Side Tagging?

2026 SEO and digital marketing trends point to the direct transfer of data from server to server (Server-to-Server / S2S). This method:

Safer: User data is not processed in the browser, it goes directly from your secure server to the APIs.
Faster: It reduces the JavaScript load on your site, improving your Core Web Vitals scores.
Cleaner Data: You can filter bot traffic and spam at the server level.
ITP/ETP Protection: It helps you bypass Safari and Firefox's strict tracking measures.

Server-side installation requires technical knowledge and a server infrastructure. As Eka Sunucu, Cloud Hosting We are here for you with our and VDS solutions.

Security Warning: SSL Certificate

Advanced conversions mean your website processes user data (even hashed). HTTPS It is mandatory to work through it. If you do not have a valid SSL certificate, your data may be rejected by Google and you may face legal problems.

What you will get from Eka Sunucu SSL Certificate With the service, you can secure your site in minutes.

Frequently Asked Questions

Is it legal to use advanced conversions? (KVKK/GDPR)

Yes, it is legal. However, you must obtain permission (Cookie Consent) from your users to collect and process data on your website. Google complies with data security standards because it encrypts data with SHA-256 .

How long does it take for the data to match?

After installation, it may take 7-14 days for the system to learn and for the data to be verified in the "Diagnostics" section in the "Conversions" tab in the Google Ads panel.

Should I do the hashing?

No. Google Tag Manager or gtag.js automatically hashes the raw data (e-mail, etc.) you send with the "enhanced_conversion_data" parameter on the browser side and sends it accordingly. You do not need to perform manual encryption.

What data is required?

Most important data E-posta is the address. To increase the match rate, it is recommended that you also send Phone Number, Name, Surname and Address information. More data means higher match rate.

I can't install, can I get support?

Certainly. Eka Sunucu's professional Google Ads Management Within the scope of the service, our expert team can carry out all technical installations on your behalf.

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