ad-copy-google-ads

name	ad-copy-google-ads
description	Writes Google Ads copy including RSA headlines/descriptions, extensions, DKI, CTAs, and intent-matched messaging. Use when creating, auditing, or optimizing Google Search ad campaigns from keyword research through final copy with extensions.

Domain Knowledge

Character Limits — The Non-Negotiable Numbers

• Headlines: 30 characters (aim for 25-30; under 20 wastes space)
• Descriptions: 90 characters (aim for 75-90; under 60 is underutilized)
• Sitelink text: 25 characters
• Sitelink descriptions: 35 characters each (2 lines)
• Callouts: 25 characters
• Structured snippet values: 25 characters
• DKI default text + syntax overhead: the longest keyword in the ad group + {KeyWord:} wrapper must fit within the 30-char headline limit. Count the literal longest keyword, not the default.

Quality Score — The Three Levers

Quality Score = Expected CTR + Ad Relevance + Landing Page Experience. Each is rated Above Average / Average / Below Average. The critical insight: these are relative to other advertisers bidding on the same keyword, not absolute metrics.

• Expected CTR: Driven by headline specificity, numbers, and strong CTAs. Generic headlines ("Best Service Available") kill CTR.
• Ad Relevance: The target keyword's core intent must appear semantically in the ad copy — not just keyword-stuffed, but meaningfully addressed. If the keyword is "emergency plumber near me," the ad must signal immediacy and locality, not just contain those words.
• Landing Page Experience: The ad's promise must be fulfilled on the landing page. If the ad says "Free Quote in 60 Seconds," the landing page must have a visible, fast quote form — not a generic homepage.

DKI — The Traps Nobody Warns About

{KeyWord:Default Text} capitalization variants: {keyword:} = lowercase, {Keyword:} = title case first word, {KeyWord:} = title case all words, {KEYWORD:} = ALL CAPS. The default text must itself be compelling ad copy, not placeholder garbage like "Our Product." Always calculate: longest keyword in the ad group + any static text in that headline ≤ 30 chars. Risky keywords for DKI: competitor brand names (trademark violations), misspellings, long-tail queries that read awkwardly as headlines, anything with "cheap" or "free" that could misrepresent the offer.

Urgency That Passes Policy Review

Google rejects: fake countdown timers, perpetual "last chance" claims, fabricated scarcity ("Only 2 left!" when inventory is unlimited). Google accepts: real enrollment deadlines, seasonal offers with actual end dates, genuine capacity limits, value-based urgency ("Prices increase Jan 1"). The psychology: loss aversion (fear of missing a deal) outperforms gain framing (excitement about getting a deal) by ~2x in CTR for transactional intent. But loss aversion applied to informational intent feels manipulative and tanks trust.

Search Intent Alignment — The Multiplier Most People Ignore

• Informational ("how to fix leaky faucet"): Educate first, soft CTA. Headlines: "How to Fix a Leaky Faucet" / "DIY Plumbing Guide." Selling hard here wastes spend.
• Commercial investigation ("best CRM for startups"): Compare, differentiate, prove. Headlines: "Top-Rated CRM for Startups" / "See Why 10K Teams Switched."
• Transactional ("buy running shoes online"): Sell directly. Price, offer, CTA. Headlines: "Running Shoes From $59" / "Free Shipping Today."
• Navigational ("Nike store login"): Don't compete unless you're the brand. If you are, direct them. If you aren't, you're burning money.

Mismatched intent is the #1 silent budget killer. A transactional ad on informational keywords gets clicks that never convert.

Headline Formula Cheat Sheet (Proven Performers)

1. Problem-Solution: "Stop [Pain Point] | [Solution] Today"
2. Social Proof: "[Number] [Users] Trust [Brand]"
3. Specificity: "[Exact Benefit] in [Timeframe]"
4. Authority: "[Credential] — [Promise]"
5. Emotional: "[Desired Outcome] Without [Fear]"

Each formula resonates with different segments: authority works for B2B/high-consideration, emotional for B2C/impulse, specificity for comparison shoppers.

CTR and Conversion Predictions — Grounding in Reality

Don't guess arbitrarily. Base predictions on these benchmarks:

• Average Google Ads CTR across industries: ~3.17% for search
• Top performers: 6-7%+ CTR
• Headline with a number vs without: +15-20% CTR lift
• Intent-matched ad vs generic: +25-50% CTR lift
• Strong CTA vs weak/absent CTA: +10-20% conversion lift
• Always state your reasoning chain when predicting: "This ad targets transactional intent with a specific price point and urgency deadline, so I'd estimate CTR in the 5-7% range for this keyword set, above the 3.2% industry average because..."

Extension Strategy — Not Just Extra Text

• Sitelinks: Each must point to a genuinely different page (Pricing, Features, Case Studies, Contact — not four versions of the homepage). They expand your ad's real estate and provide 4 additional click targets.
• Callouts: Unique value props NOT already in your headline/description. If your headline says "Free Shipping," don't repeat it as a callout. Use callouts for secondary proof: "24/7 Support" / "No Contract Required" / "Since 2010."
• Structured snippets: Must use Google-approved headers (Amenities, Brands, Courses, Degree programs, Destinations, Featured hotels, Insurance coverage, Models, Neighborhoods, Service catalog, Shows, Styles, Types). Values must be specific nouns/items, not marketing claims.

Quick Start

Task: Write a complete RSA for the keyword "project management software for teams"

Output:

Headlines (15 required, each ≤30 chars):

1. Project Management for Teams (30) — pin to H1 for relevance
2. Plan Projects 2x Faster (23)
3. Trusted by 50K+ Teams (22)
4. Try It Free for 14 Days (24)
5. All Tasks in One Platform (25)
6. No Credit Card Required (23)
7. Collaborate in Real Time (24)
8. See Why Teams Switch to Us (26)
9. Built for Remote Teams (22)
10. Gantt Charts & Kanban Boards (29)
11. Cut Meeting Time by 40% (23)
12. Top-Rated on G2 & Capterra (27)
13. Onboard Your Team in 1 Day (27)
14. Enterprise-Grade Security (26)
15. Custom Workflows & Reports (27)

Descriptions (4 required, each ≤90 chars):

1. Manage projects, deadlines & teams in one place. Start your free trial — no card needed. (89)
2. Join 50,000+ teams who deliver projects on time. Gantt, Kanban & real-time collaboration. (90)
3. Rated 4.8/5 on G2. Automate workflows, track progress & reduce status meetings by 40%. (88)
4. From planning to launch in one tool. Get custom reports, integrations & 24/7 live support. (90)

Why this works: H1 pinned for keyword relevance (Ad Relevance score). Headlines span benefit, social proof, feature, CTA, and urgency angles. Descriptions each stand alone — any combination with any headline reads coherently. Character limits respected with high utilization.

Core Rules

1. Prefer data-grounded CTR predictions over gut estimates. Always anchor to the ~3.17% search average, then adjust with explicit reasoning: intent match (+25-50%), specificity/numbers (+15-20%), strong CTA (+10-20%). State the reasoning chain, not just the number.

2. When writing extensions, verify every character count before finalizing. Count each sitelink (≤25), sitelink description (≤35), callout (≤25), and snippet value (≤25) individually. A single violation invalidates the extension. When in doubt, cut a word rather than exceed.

3. Prefer Google-approved structured snippet headers over invented ones. The approved list: Amenities, Brands, Courses, Degree programs, Destinations, Featured hotels, Insurance coverage, Models, Neighborhoods, Service catalog, Shows, Styles, Types. If your business doesn't fit these, use callouts instead — don't force a bad header match.

4. When writing urgency triggers, require a verifiable real-world basis. Before writing "Limited Time" or "Only X Left," ask: is this a real deadline or genuine scarcity? If you can't point to a specific date, event, or inventory constraint, use value-based urgency instead ("Prices increase after enrollment closes March 15" or "Lock in 2024 pricing").

5. When writing descriptions, fill 75-90 of the 90 characters. Under 60 characters means wasted ad real estate. Over 90 is rejected. Each description must function independently — assume it could pair with any headline combination.

Decision Tree

• If keyword is informational intent → Lead with education/value in headline, soft CTA ("Learn More" / "Free Guide"), landing page should be content not product page
• If keyword is commercial investigation → Lead with differentiation/social proof, comparison CTA ("See Why Teams Switch"), landing page should be comparison or features page
• If keyword is transactional → Lead with offer/price/urgency, hard CTA ("Buy Now" / "Start Free Trial"), landing page should be purchase or signup page
• If keyword is navigational → Only bid if you own the brand; direct to exact destination
• If keyword is mixed intent → Write headlines covering both intents, pin the most common intent to H1, let Google optimize the rest; avoid being so generic you convert nobody
• If using DKI → Calculate longest keyword + static text ≤ 30 chars. If it exceeds, either shorten static text or don't use DKI for that headline. Always provide at least one non-DKI static headline as fallback
• If keyword would read awkwardly in DKI (competitor names, misspellings, long-tail questions) → Use static headlines instead; DKI is not mandatory
• If ad group has >20 keywords → Split into tighter ad groups before writing copy; broad ad groups make relevant copy impossible
• If callout duplicates headline content → Replace the callout with a secondary benefit not mentioned elsewhere
• If Quality Score diagnosis shows low Ad Relevance → Tighten keyword-to-ad semantic match; the keyword's core intent must be directly addressed, not just mentioned
• If Quality Score diagnosis shows low Expected CTR → Add numbers, specificity, stronger CTA, or emotional hook to headlines
• If Quality Score diagnosis shows low Landing Page Experience → Ensure ad promise matches landing page content; recommend specific LP changes

Edge Cases

DKI Overflow

Trap: Ad group contains keyword "project management software for enterprises" (46 chars). Using {KeyWord:PM Software} in a headline with any additional text overflows 30 chars even with the default. Correct handling: Flag the overflow risk explicitly. Use the DKI headline only if the default text alone fits (e.g., {KeyWord:PM Software} = 11 char default is safe, but the inserted keyword will be truncated to the default). Provide a static alternative: Enterprise PM Software (22 chars).

Structured Snippets with No Good Header Match

Trap: A SaaS company wants structured snippets but doesn't fit Amenities, Brands, Destinations, etc. Correct handling: Use "Types" (e.g., "Types: Task Management, Time Tracking, Reporting") or "Service catalog." If neither fits naturally, skip structured snippets and add more callouts instead. Never force "Styles" or "Models" for a service business.

Urgency for Evergreen Products

Trap: Client sells an always-available SaaS product and wants urgency language. Correct handling: Use value-based urgency, not fake scarcity. "Start Today — See Results This Week" (commitment urgency), "Your Competitors Already Use It" (FOMO based on competitive pressure, not fake inventory). Never: "Only 3 Spots Left" or "Offer Ends Soon" without a real end date.

Five "Distinct" Formula Variations That Aren't

Trap: Writing 5 versions that all say "Great software, try it free" with different word order. Correct handling: Each formula must change the emotional appeal and message structure: (1) Problem→Solution→Result, (2) Social proof→Credibility→CTA, (3) Specific number→Benefit→Timeframe, (4) Question→Pain point→Answer, (5) Emotional outcome→Without fear→Action. The tone, hook, and psychological lever must differ, not just the vocabulary.

Audience-Formula Mapping

Trap: Claiming all formulas work equally for all audiences. Correct handling: Be specific — authority/credential formulas outperform for B2B decision-makers and high-consideration purchases. Emotional/outcome formulas outperform for B2C and impulse-adjacent decisions. Specificity/number formulas outperform for comparison shoppers actively evaluating options. State which segment and why.

Description Independence Failure

Trap: Description 1 says "As mentioned above..." or Description 3 says "Plus everything in our starter plan" — these require context from other descriptions or headlines. Correct handling: Every description must be a complete, standalone value proposition. Test by reading it paired with a random headline — does it still make sense? If it references other copy, rewrite.

Anti-Patterns

• DON'T use generic CTAs like "Click Here" or "Learn More" for transactional intent. Instead, use conversion-specific verbs: "Start Free Trial," "Get Your Quote," "Book a Demo," "Shop Now."

• DON'T keyword-stuff headlines. "Project Management Project Tool Projects" tanks CTR and looks spammy. Instead, use the keyword naturally once (pin to H1) and use the other 14 headlines for benefits, proof, and CTAs.

• DON'T dump features without benefits. "AI-Powered, Cloud-Based, SOC 2 Compliant" means nothing to most searchers. Instead, translate: "Automate 80% of Manual Tasks" / "Access From Any Device" / "Enterprise-Grade Security."

• DON'T repeat headline content in descriptions. If H1 is "Free 14-Day Trial," don't start Description 1 with "Try us free for 14 days." Instead, use descriptions to add new information: proof, features, or objection handling.

• DON'T assign arbitrary CTR predictions like "this will get 5% CTR." Instead, anchor to the industry baseline (~3.17% for search), explain what factors push it higher or lower, and give a reasoned range.

• DON'T use DKI in every headline. 1-2 DKI headlines per RSA maximum, with 13-14 static headlines as the backbone. Over-reliance on DKI creates fragile, awkward ads.

• DON'T create sitelinks that all go to the same page or page type. "Our Services" / "What We Offer" / "Solutions" / "Our Products" = four links to essentially one page. Instead, diversify: "Pricing Plans" / "Case Studies" / "Free Demo" / "Integration Docs."

• DON'T explain urgency psychology vaguely. "This creates urgency" is not analysis. Instead, name the specific mechanism: "This leverages loss aversion — the prospect fears losing the discounted price more than they desire the product itself, which typically increases CTR by 10-15% on transactional keywords."