UTM Builder & Checker for GA4 — ValidateURL

Build and check UTM links for GA4: a macro-safe builder, one-click fixes, GA4 channel preview and a badge on broken links.

#### Short Description Build and check UTM links for GA4: a macro-safe builder, one-click fixes, GA4 channel preview and a badge on broken links. **Detailed Description** ValidateURL is a free UTM validator and UTM builder for Google Analytics 4 (GA4). It checks the campaign tracking links you open while you browse, shows what is wrong, fixes it in one click, and builds clean UTM links from the page you are on. No account needed. WHAT IT CATCHES - A missing or empty utm_source - A missing utm_medium or utm_campaign (shown as a recommendation, not an error) - Links GA4 will file under "Unassigned", with the fix (for example utm_medium=newsletter should be email) - Misspelled tags such as utm_sourc or utm-medium, and tags repeated twice - Uppercase letters that split one campaign into several rows in GA4 - Spaces in UTM values - A # placed before the UTM tags, which stops them from reaching your analytics The toolbar icon shows a red (!) badge for errors and an amber (!) badge for recommendations. Pages without UTM tags show nothing. FEATURES - UTM Builder: starts from the current tab's URL and keeps the page's own parameters. Source, medium and campaign are up front; ID, term, content and the newer GA4 tags (source platform, creative format, marketing tactic) sit under "More fields". - Clean values: on by default, lowercases values and turns spaces into underscores, so one campaign doesn't split into several rows in GA4. - Keeps ad macros working: {keyword}, {{campaign.name}} and __CAMPAIGN_NAME__ stay exactly as typed, so Google Ads, Meta and TikTok can fill them in. - Copy parameters: copies just the tags (utm_source=...&utm_medium=...) for Google Ads' Final URL suffix or Meta's URL parameters field. - Presets: one click for Google Ads (google / cpc), Meta Ads (facebook / paid_social), LinkedIn (linkedin / paid_social), and Email (newsletter / email). - GA4 Channel Prediction: see which GA4 default channel a link lands in (Paid Search, Paid Social, Email, Organic Social...) before you launch the campaign. - Quick Validator: paste any campaign link and see every issue in plain language. - Auto-Fix: lowercases UTM tags, replaces spaces, renames misspelled tags, removes duplicates, moves a misplaced #, and removes invisible characters. Other parameters and ad macros such as {keyword} are left untouched. - Social Share Preview: shows the title, description, and image the current page uses when it is shared, and which sharing tags are missing. - Right-click shortcuts: send any link or page to the UTM validator, redirect tracer, UTM builder, or QR code validator on ValidateURL.com. App Store and Google Play links open in the matching app campaign validator. PRIVACY The extension checks URLs locally in your browser. No URL leaves your browser until you choose to open it in a ValidateURL.com tool. The extension collects no personal data and runs no remote code (Manifest V3).