# Blog

- [How to build a Google Ads negative keyword list](https://www.performetic.com/en/blog/google-ads-negative-keyword-list-guide): How to build a negative keyword list for an ecommerce Google Ads account: how negative match types work, list limits and where to apply them, including Performance Max.
- [Meta custom, lookalike and Advantage+ audiences](https://www.performetic.com/en/blog/meta-custom-lookalike-advantage-plus-audiences): How custom audiences, lookalike audiences and Advantage+ audience differ, which audience ecommerce brands should use for which job, and how to handle exclusions.
- [How to analyze your competitors' ads](https://www.performetic.com/en/blog/how-to-analyze-competitor-ads): How to study competitor ads systematically with Meta Ad Library, Google Ads Transparency Center, auction insights and TikTok Top Ads, then turn findings into tests.
- [Brand consistency in ads: how to keep creative on-brand](https://www.performetic.com/en/blog/brand-consistency-in-ad-creative): How to keep a brand recognisable while producing dozens of ad variations: a creative brand kit, fixed versus flexible elements, platform brand settings and a pre-launch checklist.
- [Discount and sale price advertising rules in Turkey](https://www.performetic.com/en/blog/discount-price-advertising-rules-turkey): How to set the struck-through price, whether sale dates are mandatory and why fake countdown timers are risky: Turkish discount advertising rules for brands selling online in Turkey.
- [How delivery experience drives customer loyalty](https://www.performetic.com/en/blog/how-delivery-experience-affects-customer-loyalty): How your delivery promise, tracking updates, packaging and delay handling decide whether customers order again, plus the metrics to measure and improve delivery experience.
- [Why don't ad platform sales match GA4?](https://www.performetic.com/en/blog/ad-platform-vs-ga4-sales-discrepancy): Why sales in Meta and Google Ads differ from GA4 and your store admin, which gaps are normal and which signal an error, and how to reconcile the numbers step by step.
- [How to build seasonal sale pages for SEO](https://www.performetic.com/en/blog/seasonal-sale-landing-page-seo): How to set up pages for Black Friday, Cyber Monday and other sales events with a recurring URL, early publishing and a plan to keep their value after the sale.
- [Do live chat and chatbots increase ecommerce conversion?](https://www.performetic.com/en/blog/live-chat-chatbot-ecommerce-conversion): Live chat and chatbots can rescue sales by answering questions at the moment of decision, or hurt trust through long waits and wrong answers. When and how to set them up.
- [Local inventory ads for online stores with physical shops](https://www.performetic.com/en/blog/local-inventory-ads-for-retailers-with-stores): What Google local inventory ads and free local listings are, what you need to qualify, how to send store-level stock data and how to set up campaigns that drive store visits.
- [How to set up enhanced conversions in Google Ads](https://www.performetic.com/en/blog/google-ads-enhanced-conversions-setup): What Google Ads enhanced conversions are, how to set them up on an ecommerce site with the Google tag or Google Tag Manager, and how to check they are working.
- [Why did your Meta ads CPM go up, and what to do](https://www.performetic.com/en/blog/why-meta-ads-cpm-increased): How the Meta ad auction works, the main reasons CPM rises, and how to tell when a high CPM is a real problem and when it is not, step by step.