GLOSSARY
Search Marketing FAQ
Concise answers to the most common questions relevant to SEO, GEO, CRO, and PPC. Filter by discipline, platform, and topic. Cortex references its corpus of platform-published best practices to draft each answer, with citations linking back to the source documents.
Showing 985-1008 of 1947 questions
Which is better: Standard Shopping or Performance Max?PPCGoogle AdsGoogleBid StrategiesAd Creative+
Performance Max usually wins on total conversions for accounts with mature feeds and 30+ conversions per month. Standard Shopping wins when you need granular control (specific bid adjustments per product group, search-term-level visibility, separate creative). Most accounts run Performance Max as primary and Standard Shopping for branded/long-tail product groups.
in Google Shopping & Merchant Center
Can I run Shopping ads without a Merchant Center feed?PPCGoogle AdsGoogleAd Creative+
No. Every Shopping ad and every Performance Max product impression requires a verified Merchant Center account with an active product feed. Without a feed, you can run Search text ads or Display/Video campaigns but not Shopping. Merchant Center setup is the prerequisite for any product-level paid surface on Google.
in Google Shopping & Merchant Center
What are free listings in Google Shopping?PPCGoogle AdsGoogle+
Free listings are unpaid product placements that appear in the Google Shopping tab (free for retailers). They use the same Merchant Center feed as paid Shopping ads but cost nothing per click. Free listings appear on the Shopping tab, image search, and (selectively) Google.com. Retailers report 5-20% incremental traffic from free listings vs paid alone.
in Google Shopping & Merchant Center
How do I get products into free listings?PPCGoogle AdsGoogle+
Submit a product feed to Merchant Center. Opt in to Shopping ads and free listings (Tools > Surface across Google in Merchant Center). Products meeting policy and quality bars automatically appear in free listings. No additional setup required beyond the standard feed. Free listings co-exist with paid Shopping ads.
in Google Shopping & Merchant Center
Why are my products not showing in free listings?PPCGoogle AdsGoogle+
Five common causes. Free listings opt-in not enabled in Merchant Center. Products disapproved or under review. Missing required attributes or low feed quality. Competing products with stronger relevance, price, or availability winning the placement. New product (allow 1-2 weeks for visibility ramp). Check Diagnostics + Performance reports per product.
in Google Shopping & Merchant Center
How do promotions, sale prices, and custom labels work in Merchant Center?PPCGoogle AdsGoogleAd Creative+
Promotion extensions surface coupon codes or sale messages on Shopping ads. Sale price + sale price effective date trigger struck-through pricing in ads (driving CTR). Custom labels (0-4 attributes) let you segment products in Shopping campaigns by margin, season, brand, or any custom dimension you define. Use custom labels to bid differently on different product groups.
in Google Shopping & Merchant Center
How do I optimize Merchant Center for better visibility and sales?PPCGoogle AdsGoogle+
Four-step audit. Fix feed errors and disapprovals in Diagnostics. Improve titles (Brand + Product Type + Attributes pattern). Add GTINs and brand to every product. Use custom labels to segment by margin/season for differentiated bidding. Update prices and availability daily. Monitor Performance > Top Products report to identify winners and double down.
in Google Shopping & Merchant Center
What is impression share in Google Ads?PPCGoogle AdsGoogle+
Impression share (IS) is the percentage of impressions your ads received out of the total impressions your ads were eligible to receive. Formula: Impressions / Total Eligible Impressions. IS at 80% means you captured 80% of available auctions; 20% slipped to competitors or were lost to budget/rank issues. Track IS at campaign, ad group, and keyword levels.
in Impression Share & Reporting
How is search impression share different from overall impression share?PPCGoogle Ads+
Search impression share specifically measures Search Network impressions (queries on Google.com). Overall impression share aggregates Search + Display + YouTube + other networks. Most analysts use Search IS because Display IS rarely matters - Display inventory is effectively unlimited. Search IS is the metric that signals whether you are losing winnable auctions on commercial queries.
in Impression Share & Reporting
What does search budget lost impression share mean?PPCGoogle Ads+
Search Budget Lost IS is the percentage of impressions you missed because your daily budget ran out. If Budget Lost IS = 15%, your campaign was eligible for 15% more impressions but daily spend was capped before they could serve. Raise budget if those impressions are converting; reduce CPC bids to extend reach at lower cost per click.
in Impression Share & Reporting
What does search rank lost impression share mean?PPCGoogle AdsAd CreativeLanding PagesQuality Score+
Search Rank Lost IS is the percentage of impressions you missed because your Ad Rank was too low to win the auction. Ad Rank is bid x Quality Score plus expected impact of extensions. If Rank Lost IS is high, either raise bids, improve Quality Score (better ad copy, landing page, expected CTR), or improve expected extensions impact.
in Impression Share & Reporting
How do I improve impression share in Google Ads?PPCGoogle AdsGoogleQuality Score+
First identify whether you are losing IS to budget or rank. Budget Lost IS: raise budget or improve conversion rate (more conversions per dollar). Rank Lost IS: raise bids or improve Quality Score. For overall IS lift, also broaden keyword match (add broad match), expand ad schedule, and improve Ad Rank via stronger creative + assets.
in Impression Share & Reporting
What is a good impression share benchmark for Google Ads?PPCGEOGoogle AdsGoogleAI Overviews & Citations+
Branded campaigns should target 90%+ Search IS - they should win every auction. Non-brand competitive categories: 50-70% Search IS is healthy, above 80% may mean you are overspending. Lead-gen B2B: 60-80% target. Local: 70-90% on geo-restricted campaigns. Benchmarks vary by competition - use auction insights to gauge competitor IS.
in Impression Share & Reporting
What is a good search impression share benchmark?PPCGoogle Ads+
Branded: 90%+. Non-brand competitive: 50-70%. Long-tail or niche queries: 70-90%. Below 30% signals significant budget or rank gaps. Above 90% on non-brand may mean you are over-bidding and could lower CPC without losing meaningful traffic. The right target balances reach against CPA - more IS is not always better.
in Impression Share & Reporting
How do I reduce search budget lost impression share?PPCGoogle Ads+
Three levers. Raise daily budget if marginal impressions convert profitably (check first). Improve conversion rate so each dollar wins more conversions. Lower CPC bids while maintaining position - sometimes 80% of position 2 cost wins 90% of position 2 traffic. The right move depends on whether your CPA has headroom or is already at the ceiling.
in Impression Share & Reporting
How do I reduce search rank lost impression share?PPCGoogle AdsAd CreativeLanding PagesMobile OptimizationQuality Score+
Three levers. Raise CPC bids (most direct). Improve Quality Score via better Expected CTR (compelling headlines), Ad Relevance (keyword-tight ad groups), and Landing Page Experience (relevance + speed + mobile usability). Add more ad extensions and improve their relevance to lift expected impact. Each Quality Score point reduces effective CPC 16%.
in Impression Share & Reporting
What is the difference between budget-limited and rank-limited impression share?PPCGoogle AdsQuality Score+
Budget-limited: your daily spend caps out before the day ends, leaving auctions unserved. Solution: raise budget or improve conversion economics. Rank-limited: Ad Rank too low to win the auction. Solution: raise bid or improve Quality Score. Budget-limited campaigns often look 'expensive' (high CPA); rank-limited campaigns look 'invisible' (low impressions despite ample budget).
in Impression Share & Reporting
What are Google Ads auction insights?PPCGoogle AdsGoogle+
Auction Insights is a report showing which competitors bid on the same queries you do, what percent of auctions they win, and how their performance compares. Available at campaign, ad group, and keyword level. Use it to identify new bidders, track competitor share-of-voice, and benchmark your impression share against direct rivals.
in Impression Share & Reporting
How do I read auction insights in Google Ads?PPCGoogle AdsGoogle+
Open the campaign or ad group, click Insights > Auction Insights. Six key columns: Impression Share (your IS), Overlap Rate (how often you appeared with that competitor), Position Above Rate (how often they outranked you when you both appeared), Top of Page Rate, Absolute Top Rate, and Outranking Share. Higher Outranking Share is good; high Position Above Rate from a competitor is a threat.
in Impression Share & Reporting
What do overlap rate, position above rate, and outranking share mean in auction insights?PPCGoogle Ads+
Overlap rate: percentage of your impressions where the competitor also appeared. Position above rate: when both appeared, percentage of times the competitor's ad showed higher than yours. Outranking share: percentage of auctions where you ranked higher than the competitor (or they were absent). Higher Outranking Share is good; high competitor Position Above Rate signals threats to address.
in Impression Share & Reporting
How can auction insights help improve Google Ads performance?PPCGoogle AdsGoogleBid StrategiesLanding PagesQuality Score+
Three use cases. Identify new competitors entering your auctions before they take share. Track competitor share-of-voice trends to benchmark whether you are gaining or losing ground. Diagnose Position Above Rate spikes from specific competitors to understand pricing/Quality Score gaps. Use insights to brief copy refreshes, bid adjustments, and landing-page improvements.
in Impression Share & Reporting
Why did Google Ads remove auction insights export from the interface?PPCGoogle AdsGoogle+
Google removed bulk export of Auction Insights in 2023 for privacy reasons (preventing competitive intelligence at scale). You can still view Auction Insights in the UI per campaign, ad group, or keyword but cannot bulk-export competitor share data. Use Google Ads scripts or the API for custom export if your scale demands it.
in Impression Share & Reporting
What is a good ROAS benchmark for Google Ads?PPCGoogle AdsGoogle+
Varies wildly by industry. E-commerce: 300-500% (every $1 of spend returns $3-5 in revenue). Subscription/SaaS: 200-400% on first transaction (LTV usually pushes long-run ROAS higher). Lead gen: ROAS less applicable, use CPA. Above 600% often signals under-spending - you could expand budget profitably. Below 200% on e-commerce usually means optimization gaps.
in Impression Share & Reporting
What is a good CPA benchmark for Google Ads?PPCGoogle AdsGoogle+
Industry-specific. B2B SaaS: $50-300 per marketing-qualified lead. Local services (plumbers, lawyers): $40-150. Insurance: $80-250. E-commerce lead capture: $5-30. The right CPA is the one that keeps your customer acquisition cost (CAC) below 30% of customer lifetime value (LTV). Benchmark against your unit economics, not industry averages alone.
in Impression Share & Reporting