Ranking Japan
Vol. VII · No. 14 · Tokyo
THE WEEKLY JAPAN SERP INTELLIGENCE DESK
An English-language intelligence brief on Google.co.jp and Yahoo! JAPAN algorithm shifts, ranking volatility, and keyword demand — built for SEO teams who refuse to guess.
Trusted by SEO teams at Mercari · Rakuten · Recruit · Sony Network Communications · LINE — read by 141,800+ subscribers across 64 countries.
— THE BRIEF
Japan is the third-largest search market on earth, and the only G20 economy where Yahoo! JAPAN still commands a meaningful share of queries alongside Google.co.jp. Treating it as a translation of your U.S. or EU playbook is how global teams lose quarters. Ranking Japan was founded in 2019 in Shibuya, Tokyo, to give English-speaking SEO professionals a desk that watches this market on its own terms.
Every Monday at 06:00 JST, the team of 12 full-time analysts and 4 contributing editors publishes a long-form brief covering the week's algorithm shifts on Google.co.jp, the structural ranking differences on Yahoo! JAPAN, and the keyword demand signals quietly moving underneath both engines. The publication has produced 1,920+ long-form SERP analyses since launch — the deepest English-language archive of Japan search behavior anywhere.
The brief is data, not commentary. Subscribers receive the proprietary JP-SERP Volatility Index (cited by Nikkei Digital Gear in their 2024 search trends report), the recurring Yahoo! JAPAN vs. Google.co.jp market-share series, daily keyword-demand movement across more than 1.84 million unique Japanese queries, and a weekly algorithm-shift log. Average open rate is 47% — verified against MailerLite's 2024 industry benchmark of 21% — because the readers are operators, not tourists.
— SIGNATURE RESEARCH
What subscribers actually receive in each weekly issue — original research no other English desk publishes.
A weekly composite measuring ranking turbulence across 1.84M+ Japanese keywords on Google.co.jp and Yahoo! JAPAN, broken down by vertical. Now cited by Nikkei Digital Gear in their annual search trends report.
The first publication to publish a recurring market-share comparison between the two engines. Now cited by 4 of Japan's top 5 digital agencies and referenced in industry training programs at Mercari, Rakuten Group, and Recruit.
Daily movement across more than 1,842,000 unique Japanese keywords, surfaced weekly as rising, falling, and seasonally rotating demand — powered by an exclusive partner data feed agreement with Similarweb for the Japan market since 2022.
A running ledger of confirmed and suspected updates to Google.co.jp core, helpful content, link spam, and product review systems — plus Yahoo! JAPAN's Power & Brand and Insource algorithm revisions — with annotated impact analyses.
The Operation, In Numbers
Independent. Bilingual. Tokyo-based. Founded in Shibuya, 2019.
順位 From the latest issue
Long-form analysis of what moved in Google.co.jp and Yahoo! JAPAN last week — the kind subscribers read with a coffee, not a Slack ping.
A side-by-side recovery curve across 14,200 monetised finance queries. The pattern is unmistakable: sites with under 800 words of original analysis lost an average of 11.3 positions, while Google.co.jp applied a softer 4.1-position penalty to the same set. We unpack the differing intent models — and what editors should fix before April.
Read the dispatch
Same product, two adjacent queries, two completely different ranking sets. We charted 6,400 transactional queries containing the price-modifier characters and found a 23% divergence in top-10 overlap. The editorial takeaway for merchandising teams is sharper than you think.
Read the dispatch
Local intent behaves nothing like the global average in Japan. For district-level queries, Yahoo! JAPAN's local pack appears in 71% of cases versus Google.co.jp's 44% — and the snippets look completely different. A field guide for content strategists who publish in Japanese.
Read the dispatch検索 Cited by the trade
“Ranking Japan's JP-SERP Volatility Index has become the single most-cited third-party metric in our 2024 search trends coverage. When their analysts say a category is unstable, the agencies we survey agree before the week is out.”