# Public Link All Zigpolls come with a public link for easy sharing. This link can be found on the General tab for each survey.
*** ## Social Media Metadata When you share your survey link on social media, messaging apps (iMessage, WhatsApp, Slack), or anywhere that generates a link preview, Zigpoll automatically includes Open Graph metadata so your survey looks great. By default, shared links will display the Zigpoll branding. You can customize this by navigating to your survey's **Page Design** settings under the **Metadata** section. #### Social Media Image Upload a custom image that will appear in link previews when your survey is shared. This image is used as the `og:image` for platforms like Facebook, Twitter/X, LinkedIn, iMessage, and Slack. For best results, use an image that is at least 1200x630 pixels. #### Page Title Set a custom title for your survey's share page. This will appear as the link preview title instead of the default "Zigpoll : Survey Name" format. #### Favicon Upload a custom favicon to replace the default Zigpoll icon in the browser tab when respondents visit your survey link. The uploaded image is automatically cropped to a square and resized to 180x180 pixels, which covers standard favicons and Apple Touch Icons. {% hint style="info" %} These settings can be configured at the **account level** (applied to all surveys) or overridden at the **survey level**. Navigate to Account → Page Design Defaults for account-wide settings, or Survey → Page Design for survey-specific settings. {% endhint %} *** ## Query Parameters All query parameters added to your survey's public link will be appended as survey metadata. This means if you want to tag a specific respondent, you could do so via the following url: `https://share.zigpoll.com/ACCOUNT_`*`ID/POLL_ID?tag=email_survey`* The link above would add metadata called **tag** with value **email\_survey** to any participant that responds to the survey via that url. This is also useful if you are embedding a survey within an email template and want to track customer information. For example, if you want to email a Zigpoll survey automatically in response to your Shopify store's order fulfillment webhook, you could add the following to your public link and dispatch it via email: `https://share.zigpoll.com/ACCOUNT_`*`ID/POLL_ID?shopify_customer_id={{ customer.id }}&shopify_order_id={{ order.id }}`* The link above will dynamically add the customer id, and the order id to each participant. This allows you to keep track of who filled out your survey and gives you the opportunity to respond to them if necessary.