The best international SEO agencies for e-commerce are no longer defined by translation alone. In a search environment where Google still accounts for roughly 80% of global search query volume, AI search is rising fast: ChatGPT Search handles 250–500 million search-intent queries per week, Google AI Mode has 200M+ monthly active users, Perplexity processes about 50M weekly queries, and Microsoft Copilot in Bing handles 80–120M weekly. The real question is simple: Which agencies truly understand how to rank e-commerce stores across multiple markets in this new landscape?
AI search is no longer a side note. It is already reshaping visibility, clicks, and conversion paths. By the end of 2027, AI search is projected to reach 20–25% of total query volume, and AI Overviews now appear in roughly 20% of Google searches. That matters because position-one CTR has fallen from 31.7% to 19.8%, which is exactly why the “best” international SEO agencies for e-commerce are the ones built for AI search, zero-click behavior, and multi-market execution.
The old playbook is breaking. Traditional international SEO still matters, but it is no longer sufficient on its own. 58% of Google searches end without a click, making zero-click searches the norm. Across content sites, non-branded informational query traffic has dropped 15–30%, and AI Overviews are a major reason why.
Here is the blunt reality. AI Overviews reduce clicks to top-ranking pages by 34.5% according to Ahrefs, while position-one CTR drops from 31.7% to 19.8%. When an AI Overview appears, traditional results receive clicks in only 8% of visits, versus 15% without one. Roughly 26% of sessions end immediately after a user sees an AI Overview, and UK publishers report traffic drops of 40–60% when AI Overviews are present.
For e-commerce, the hit is smaller than in informational niches, but it is still real. Organic traffic has declined by 5–15% year over year for e-commerce specifically, while informational niches have been hit much harder at 15–30%. At the same time, user behavior is becoming more compressed: 7 out of 10 users read only the first lines of an AI Overview, 88% click “show more” but do not read the full answer, and median scroll depth inside AI Overviews is only 30%.
Trust is not the same as click intent. About 70% of users express some trust in AI-generated search results, but only 1% click links inside AI Overviews. Even so, being cited helps: being featured as an AI Overview source increases CTR from 0.6% to 1.08%. Agencies that understand this shift are already outperforming, because 65% of businesses report better SEO results when using AI, and 68% of marketers confirm higher ROI with AI.
| Metric | Value |
|---|---|
| Google share of global search query volume | ~80% |
| ChatGPT Search weekly search-intent queries | 250–500M |
| Google AI Mode monthly active users | 200M+ |
| Perplexity weekly queries | ~50M |
| Microsoft Copilot in Bing weekly queries | 80–120M |
| Projected AI search share by end of 2027 | 20–25% |
International SEO now lives inside an AI search economy. Agencies that ignore zero-click behavior, AI Overviews, and citation mechanics are not just behind; they are optimizing for a search landscape that no longer exists.
Ranking across multiple markets is not just about translation—it is about understanding how search engines behave in each country. AI Overview presence grew from 6.49% of queries in January 2025 to 24.61% in July 2025, then stabilized around 15–16%. That volatility alone proves that international SEO must be market-specific.
Geography matters. Indonesia leads with 37.2% of keywords triggering AI Overviews, while the United States sits at 20.5%, Canada at 19.2%, and the United Kingdom at 19.1%. In absolute SERP volume from one dataset, the US had 254,778 AI Overview SERPs, the UK had 44,818, South Africa had 7,995, Nepal had 2,555, and Nigeria had 1,007.
Device behavior is shifting too. About 59% of AI Overviews appear on desktop and 39% on smartphones, yet mobile AI presence surged 474.9% year over year. AI Overview queries occur on mobile devices about 81% of the time. When an AI Overview appears, desktop clicks drop by about 50% and mobile clicks fall by about 30%.
Long-tail visibility is being eaten as well. 68% of AI Overview-triggering keywords have 100 or fewer monthly searches, and 25% are interrogative queries like who, what, and where. That makes FAQ-style e-commerce content a direct target. Market-by-market calibration is no longer optional.
Even transactional categories are being pulled into AI search answers. While 99% of AI Overviews are still triggered by informational queries, the share of transactional queries triggering AI Overviews grew from about 2% to 14% by late 2025. That is a major shift for retail visibility.
Retail e-commerce queries now trigger AI Overviews 23.2% of the time. Apparel & Fashion sits at 18.3%, Food & Beverage at 24.9%, and Home & Garden at 50.4%. For context, Health is at 60.7%, Transportation at 31.4%, Finance at 22.9%, Legal at 21.5%, Insurance at 19.0%, Education at 15.5%, Entertainment at 14.6%, Travel at 11.3%, Sports at 7.1%, Automotive at 5.8%, Real Estate at 5.2%, and Local Services at 2.2%.
This matters because informational coverage is still expanding. About 35% of informational queries now show an AI Overview, and more than 50% of informational queries are projected to trigger AI answers by the end of 2027. In other words, if your product-detail pages are not built for this shift, an AI answer can bypass your store entirely.
Even pure e-commerce categories are not safe. Retail queries are already seeing a meaningful AI Overview rate, and transactional intent is increasingly being intercepted before users ever reach a product page.
The best agencies win citations, not just rankings. Being featured as an AI Overview source raises domain CTR on that query from 0.6% to 1.08%. On Perplexity, cited sources enjoy an 18–22% click-through rate on their links. Direct-answer paragraphs increase citation likelihood by 2–3x, and structured data is associated with measurably higher citation rates.
AI search concentrates attention on a narrow set of authority domains. Across all LLM responses, Reddit is cited in 9.7% of responses, LinkedIn in 8.9%, Wikipedia in 7.6%, Medium in 4.8%, YouTube in 4.2%, government and NIH domains in 4.1%, Forbes in 3.4%, Amazon in 2.6%, and Microsoft in 2.4%, based on analysis of 230k prompts. The top five sources on Perplexity are Reddit, Wikipedia, news, Stack Overflow, and academic domains.
Platform behavior also differs. Reddit is cited in 18% of ChatGPT Search answers, 11% of Perplexity answers, and 14% of Google AI Mode answers. Wikipedia appears in 12% of ChatGPT answers, 9% of Perplexity answers, and 16% of AI Mode answers. Major news publishers appear in 11% of ChatGPT, 16% of Perplexity, and 12% of AI Mode. Average citations per answer are also different: 2–3 for ChatGPT, 4–6 for Perplexity, and 3–5 for Google AI Mode.
Multi-engine ranking is now mandatory. Traditional Google still processes about 50B queries weekly, but the AI-native engines are taking real share. ChatGPT Search handles 250–500M weekly search-intent queries, with a 10–15% share and an 82% zero-click rate, plus 340% YoY growth. Perplexity handles about 50M weekly queries, has a 2–3% share, a 93% zero-click rate, and 2.1x citation density versus ChatGPT. Google AI Mode has 200M+ monthly active users, is projected to reach 75M daily users by the end of 2025, and has an 88% zero-click rate.
Microsoft Copilot in Bing is also part of the picture. It handles 80–120M weekly queries, holds a 3–5% share, and has a 64% enterprise usage share. Combined other AI assistants add another 20–40M weekly queries, or 1–2% share. By 2027, AI-driven query share will reach 20–25%, non-branded informational click volume is projected to decline by 35%, and Google AI Mode processed 1 billion queries/month while reaching 100M monthly active users in the US and India, with its share of all searches rising from 0.25% to 1% in two months.
Traffic impact varies by niche, and e-commerce is not escaping the trend. Year over year, health and medical content is down -35% to -50%, how-to and reference content -30% to -45%, finance and investing -20% to -35%, tech news and analysis -15% to -25%, travel content -15% to -25%, e-commerce and marketplaces -5% to -15%, local services directories -5% to -10%, B2B SaaS product content -3% to -12%, and branded/direct-response sites are flat to +5%. Non-branded informational traffic overall is down -15% to -30%, and branded queries see a 18.68% CTR lift when AI Overviews appear.
The worst declines come when visibility layers overlap. Position #1 CTR for informational keywords fell from 5.6% in March 2024 to 3.1% in March 2025, a 44.6% decline. For keywords that trigger AI Overviews, the drop is even steeper, from 7.3% to 2.6%. Across industries, Amsive found an average CTR decline of 15.49%, with 19.98% for non-branded queries and 27.04% for keywords outside the top three positions. When AI Overviews and featured snippets overlap, CTR loss reaches 37.04%, while pages below AI Overviews can see 40–50% CTR drops.
The agency standard is now clear. The best international e-commerce SEO agency must be built around AI citations, direct-answer formatting, structured data, and visibility across five separate search ecosystems. It must also fight a traffic environment where Google’s internal AI products are the largest single source of organic traffic disruption for informational publishers.
Use the data as a filter. The right agency should have precise answers to the questions below, because “international SEO” without AI expertise is already outdated. Google is acting as both a search engine and an answer engine, and AI Overviews are different from featured snippets.
Keep going until the answer is unmistakable. Ask what sources they are getting you cited in, because the top cited domains in LLM responses are Reddit, LinkedIn, and Wikipedia. Ask how they protect branded traffic, since branded queries see a 18.68% CTR increase when AI Overviews appear. Ask how they handle the 15.49% average CTR drop when AI Overviews and featured snippets overlap, and what their plan is for transactional intent now that 14% of those queries trigger AI Overviews.
The strongest agencies can also explain the click math. When AI summaries appear, click rate falls to 8% versus 15% without one, and users end their session after seeing an AI Overview in about 26% of cases. That is why the right partner needs to understand not just ranking, but retention, citation, and conversion.
Armed with these questions, you will separate agencies that merely understand international SEO from the ones that dominate the AI era. The data is your filter.
If you want the best international SEO agencies for e-commerce, you now need more than multilingual pages. You need AI-optimization expertise, multi-engine strategy, and citation mastery. That is what separates generic vendors from a partner built for the current search reality.
Delante’s E-commerce SEO service is designed for exactly that job. Stop letting AI Overviews steal your global traffic. Get a free consultation with Delante’s E-commerce SEO team and start ranking across every market and every search engine. With Google AI Overviews reaching 2 billion users globally, 75M daily AI Mode users, and 250–500M weekly queries on ChatGPT, now is the moment to secure your international presence before the projected 20–25% AI search share by 2027.
