Link Building Japan

Link building in Japan means getting Japanese websites to link to your pages, so that Japanese searchers and search engines treat your site as relevant to the Japanese market. Japan is a large, sophisticated online market with its own language, its own search habits and, since 2023, strict rules on undisclosed advertising.

This guide covers:

• how search works in Japan
• where Japanese backlinks come from
• what Google’s policies and Japan’s stealth marketing rules mean for sponsored placements
• what a campaign costs
• the mistakes foreign brands make most often in Japan

What is link building in Japan?

Link building in Japan is the work of earning or placing links to your website from websites that Japanese people read. Its purpose is to build visibility in Japanese search results and to reach Japanese audiences through the sites they already trust.

A link from another website to yours is a backlink. Search engines use backlinks to find new pages, and Google uses them as one of many signals when deciding which pages deserve to rank. A link from a respected Japanese industry publication tells search engines that a Japanese source considered your page worth recommending.

Link building is part of off-page SEO: everything that happens outside your own website and influences how search engines see it.

Japanese SEO terms you will meet

Japanese marketers use a mix of Japanese terms and English loanwords written in katakana. The table explains the terms you are most likely to see when working with Japanese publishers.

How does search work in Japan?

Search in Japan is shared between three brands but ranked by two engines. Google leads, Bing holds an unusually large share, and Yahoo! JAPAN shows results powered by Google’s technology.

Google leads, but Bing is unusually strong

Japan is one of the few major markets where Bing holds a substantial share. StatCounter’s figures for July 2026 give Google 59.7% of the Japanese search engine market, Bing 32.1% and Yahoo! 6.6%, with all other engines below 1%.

Bing’s share is far higher than in Europe. In Denmark and Sweden, Bing held only 7.7% and 6.4% in the same month. For a Japanese campaign, monitoring visibility in Bing is therefore worth the effort, especially for audiences that search on desktop computers.

Yahoo! JAPAN runs on Google’s search technology

Yahoo! JAPAN is still a familiar starting point for news, shopping and finance, but its organic search results are not produced by an independent engine. Yahoo Japan Corporation announced on 27 July 2010 that it would adopt Google’s search engine and search advertising systems for Yahoo! JAPAN search. The adoption covered web, image, video and mobile search.

The practical consequence is that Google’s ranking systems and link policies apply to roughly two thirds of Japanese searches: Google’s own share plus Yahoo! JAPAN’s. A link profile that works for Google also serves Yahoo! JAPAN.

A large, mobile-first audience

Japan’s online audience is large even though its population is shrinking. The Statistics Bureau of Japan estimated the population at 122.65 million on 1 September 2026, about 540,000 fewer than a year earlier.

Internet use is widespread, with smartphones as the main device. The Ministry of Internal Affairs and Communications reports that 85.7% of individuals used the internet in 2025. Smartphone use (74.3%) was more than 28 percentage points higher than computer use (45.6%). Use exceeds 90% in every age group from 13 to 69 and falls among older people.

The .jp domain space

Japan’s country domain is growing. JPRS, the registry for .jp, reported 1,901,067 registered .jp domain names on 1 October 2026, an increase of 83,558 on the previous year. Registering a .jp domain requires an address in Japan.

About 69% of .jp names are general-use domains (example.jp). Around 30% are organisational types such as co.jp for companies and ne.jp for network services. Many established Japanese businesses use co.jp, which signals a registered Japanese company. Plenty of reputable Japanese sites also use .com or other endings, so judge each site by its audience rather than its domain.

What the Japanese market means for link building

The table connects the characteristics of the Japanese market to practical link building decisions.

Why do Japanese links matter for foreign brands?

Japanese links matter because they tie your site to the Japanese market in a way that English-language links cannot. For a foreign brand, they also provide some of the local credibility that Japanese buyers look for.

The main benefits are:

1. Relevance in Japanese search. Links from Japanese sites in your field help search engines connect your pages with Japanese queries and topics.
2. Local credibility. Japanese consumers and business buyers often look for signs that a foreign company is established and taken seriously in Japan. Mentions on known Japanese sites provide those signs.
3. Referral traffic. Japanese readers who click through from an article they trust arrive with context and interest.
4. Discovery of Japanese pages. Search engines find new pages by following links, so links from active Japanese sites help new Japanese-language pages get found.
5. Reach across both engines. Good Japanese links support visibility in Google and Yahoo! JAPAN, and they also help in Bing.
6. Presence in AI-generated answers. Generative search features summarise information from across the web. Being discussed on reputable Japanese sites increases the chance that your brand is part of that material, although nobody can control which sources these systems cite.

Links work best on a site that is ready for them. Solid on-page SEO and a well-built Japanese version of your website make every Japanese link more effective.

How do Google’s link rules apply to Japanese campaigns?

Google’s link rules are the same in Japan as everywhere else: editorially earned links are welcome, and paid links must be labelled so they pass no ranking credit. Because Yahoo! JAPAN uses Google’s technology, these rules effectively govern the majority of Japanese search.

Editorial links and paid links

Editorial links are links a writer adds because they help readers. Examples include a Japanese journalist citing your survey, or a Japanese blogger recommending your tool. They need no special attribute and are the links Google’s systems are designed to reward.

Paid links are acceptable to Google only when they are qualified. Google’s spam policies treat buying or selling links for ranking purposes as link spam. That includes paying money for links, or for posts containing links, and exchanging goods or services for links. The same policies recognise paid links as a normal part of advertising, provided the link carries rel=”sponsored” or rel=”nofollow”. Google prefers rel=”sponsored” for advertisements and paid placements.

The takeaway: a sponsored article on a Japanese site is advertising that reaches Japanese readers, not a way to buy rankings. Our post on why trust matters when building links explains why that distinction protects your site.

Press releases and optimised anchors

Press releases are a common marketing tool in Japan, and press release distribution services publish them widely. Google’s spam policies list optimised anchor text in press releases distributed on other sites as an example of link spam. A press release can earn coverage and editorial links from journalists who pick up the story. The links inside the distributed release itself should not be treated as a ranking tactic.

What about Bing?

Bing operates its own index and its own webmaster guidelines, and it holds about a third of Japanese searches. The practical approach is the same as for Google: earn relevant links, label paid links, and avoid manipulative patterns. Use Bing Webmaster Tools alongside Google Search Console to see how your Japanese pages perform in both engines.

What are Japan’s stealth marketing rules?

Japan has prohibited stealth marketing since 1 October 2023, so any paid placement aimed at Japanese consumers must be clearly identifiable as advertising. This rule sits alongside Google’s link attributes, and a responsible placement meets both.

A ban under the Premiums and Representations Act

The ban comes from the Premiums and Representations Act (景品表示法, keihin hyōji hō), Japan’s law against misleading representations to consumers. On 28 March 2023, the Consumer Affairs Agency designated stealth marketing as an unfair representation under Article 5(3) of the Act. The Agency also published operating standards, and the designation took effect on 1 October 2023.

The designated category covers representations made by a business about its own products or services that ordinary consumers find difficult to recognise as coming from that business. In plain terms, it covers advertising that hides the fact that it is advertising.

The two conditions that define stealth marketing

A representation counts as stealth marketing when two conditions are both met:

1. It is the business’s own representation. The business was involved in deciding the content, for example by commissioning it, paying for it or giving instructions.
2. Consumers cannot tell that it comes from the business. The commercial relationship is not disclosed clearly enough for an ordinary consumer to recognise it.

The operating standards use the business’s involvement in the content as the key test. Factors include the communication between the parties, any payment and their past relationship. Simply sending a free product without any involvement in the content is not automatically covered.

Labels that make advertising recognisable

Clear labels prevent a placement from being stealth marketing. Examples given in connection with the operating standards include wording such as 広告 (advertisement), プロモーション (promotion) and PR. A statement that the content was produced with products provided by a named company is another example. The label should be visible when the reader first encounters the content, not buried at the end.

Who is responsible

The responsibility lies with the advertiser, the business whose products are promoted. A business that breaches the ban can receive a cease-and-desist order (措置命令) from the authorities requiring measures such as preventing recurrence. Advertisements that started before October 2023 but remained visible afterwards also became subject to the rules. Businesses therefore need to review sponsored content still online, not only new campaigns.

For link building, this means the brand buying a placement carries the legal risk if the article is not properly labelled. Choose Japanese publishers that label sponsored content clearly, and agree in writing how the labelling will look.

Which industries face extra limits in Japan?

Some industries face rules in Japan that go well beyond advertising labels. For online gambling, link building aimed at Japan is not an option at all.

Online gambling

Gambling at online casinos from within Japan is a crime, and promoting online casinos is now illegal too. The Basic Act on Gambling Addiction Countermeasures was amended in June 2025, and the amendment took effect on 25 September 2025. It prohibits presenting websites or apps that offer illegal online gambling to unspecified people in Japan, and inducing people online to gamble illegally.

Japanese prefectural and police guidance gives concrete examples of what is now prohibited:

• operating online casino sites
• posting links to online casino sites on social media
• advertising or promoting online casino sites
• creating aggregation sites that introduce online casinos

Online casino placements targeting Japan are therefore not a lawful form of link building. Our pages on gambling SEO and casino SEO explain search practice in markets where gambling marketing is regulated rather than prohibited.

Finance and crypto

Financial products and crypto-asset services are regulated in Japan, and marketing claims about returns, costs or safety need particular care. Many Japanese publishers apply strict acceptance criteria to finance and crypto content. See our pages on financial SEO and crypto SEO for how search works in those sectors.

Where do Japanese backlinks come from?

Japanese backlinks come from media, industry publications, blogs, business relationships and sponsored content. As in every market, relevance and editorial quality matter more than size. A healthy Japanese link profile usually combines several of the sources below.

Japanese news media and portals

Japanese news sites and portals carry strong authority and are difficult to earn links from. Journalists respond to stories with a clear Japanese angle, such as new data about Japanese consumers, a product launch in Japan, or expert comment on a Japanese development. Portals that syndicate news can extend the reach of a story picked up by their media partners.

Industry and B2B media

Japan has a large specialist press covering technology, manufacturing, retail, marketing, finance and many other sectors. A link from a respected Japanese industry publication is highly relevant, and its readers are often decision-makers. Expert contributions, research and case studies with Japanese customers are common ways in.

Blogs and blogging platforms

Japanese individuals and companies publish extensively on their own blogs and on popular platforms such as note and Hatena Blog. Niche writers in fields such as gadgets, travel, food, parenting and personal finance often have loyal followings. Their recommendations can bring both relevant links and engaged readers.

Press release distribution

Press release services are widely used in Japan to announce products, partnerships and research. Their real value lies in reaching journalists who may cover the story and link to you editorially. Links inside the distributed release should not be relied on for rankings, and the release must comply with the stealth marketing rules.

Partners, distributors and Japanese entities

Japanese distributors, resellers, technology partners and your own Japanese subsidiary are natural link sources. Partner pages, case studies, event pages and joint announcements are typical places for a link. These links come from real business relationships, which makes them low-risk and highly relevant.

Sponsored articles

Sponsored articles are paid placements on Japanese sites, labelled 広告 or PR and linked with rel=”sponsored”. They let you reach a chosen Japanese audience quickly and predictably, as long as you treat them as advertising rather than a ranking tool.

Comparison of link building methods in Japan

The table compares the main methods on speed, the type of link they produce and where they fit best.

How do you evaluate a Japanese website before getting a link?

Evaluate a Japanese website by its real Japanese audience, the quality of its Japanese writing and how clearly it labels advertising. A single third-party score is not enough.

Authority scores from SEO tools are estimates, not Google data. Google states that it does not evaluate or endorse third-party SEO tools and that these tools have no access to its internal ranking data. Use the scores for a first comparison, then look at the site itself.

How should Japanese content and anchors be written?

Japanese content must read as if a native writer produced it, and anchor text should describe the destination in natural Japanese. Japanese readers notice translated or unnatural text immediately, and the impression affects trust in your brand.

Three scripts, no spaces and levels of politeness

Japanese has features that make translation especially difficult:

• Three writing systems. Japanese combines kanji (characters of Chinese origin), hiragana (for grammatical elements and native words) and katakana (mainly for foreign words and emphasis). Using the wrong script for a word looks odd to Japanese readers.
• No spaces between words. Japanese text runs without word spacing. That affects keyword research, because search terms can be written in several ways, for example in kanji, hiragana, katakana or English.
• Politeness levels. Japanese business writing typically uses polite forms (です・ます調), while some media use a plain style (である調). Mixing them inconsistently, or choosing the wrong level for the audience, reads as careless.
• Loanwords. Many marketing and technology terms are English words written in katakana, such as アンカーテキスト for anchor text. Use the form Japanese readers actually search for.

Our page on Japanese content covers native Japanese writing in more detail.

Natural Japanese anchor text

Anchor text should be what a Japanese writer would naturally write to describe your page. Google’s spam policies name optimised anchor text in paid articles, guest posts and press releases as a link spam pattern, so avoid repeating commercial phrases across many links.

Japanese URLs

Japanese characters can be used in URLs, but they are percent-encoded when copied and shared, which turns them into long strings of codes. Many Japanese sites therefore use short English or romanised slugs, such as /link-building/ or /hirinku/. Whatever you choose, keep slugs short and consistent across your Japanese pages.

How do you plan a link building campaign in Japan?

A Japanese link building campaign works best as a sequence: prepare your site, create Japanese assets, earn links, add labelled placements and measure in both Google and Bing. Each step depends on the one before.

Step 1: Audit your current link profile

Start by mapping three things: which sites already link to you, which Japanese sites link to the competitors ranking above you in Japan, and whether any existing links look risky. Our Ahrefs site audit quick guide explains how to run and read an audit.

Step 2: Build a solid Japanese version of your site

Links pointing to a weak Japanese site lose much of their value. Make sure the Japanese pages load quickly on smartphones, are crawlable, and sit in a clear structure; our guide to technical SEO lists what to check. If you run several language versions, add hreflang so search engines show your Japanese pages to ja-JP users.

Step 3: Strengthen internal links to Japanese pages

Internal links pass attention from your strongest pages to the Japanese pages you want to rank. Before chasing external links, link your Japanese landing pages from relevant pages in the Japanese section of your site. Our post on internal link opportunities in Ahrefs shows a quick way to find them.

Step 4: Create Japanese assets worth citing

Japanese publishers link to content that is useful to their readers. Strong assets include:

• surveys of Japanese consumers or professionals
• analysis of Japanese public statistics
• tools and calculators adapted to Japanese units and conventions
• thorough guides written by native Japanese writers
• expert commentary on Japanese industry developments

General content creation principles apply, but each asset needs a clear Japanese angle.

Step 5: Earn links through relationships and PR

Contact relevant Japanese journalists, editors, bloggers and partners in Japanese, with a short, polite message explaining why your content helps their readers. Relationships often take longer to build in Japan, so plan for repeated, respectful contact rather than one-off requests.

Step 6: Add labelled sponsored placements

Use sponsored articles on Japanese sites to reach specific audiences, support a launch or build awareness when entering the market. Choose sites by audience fit, label each article clearly as advertising, and use rel=”sponsored” on links. Our backlink marketplace lists placements by market, including Japan.

Step 7: Index, measure and maintain

Make sure search engines can find new Japanese pages and pages that received links. Our post on how to index a URL in Google Search Console covers the process. Track Japanese impressions and clicks in Search Console and Bing Webmaster Tools, alongside referral traffic from Japanese sites.

If an audit later finds spammy links you did not build and cannot remove, our guide on how to disavow links in Google Search Console explains when and how to use the tool.

What does link building in Japan cost?

The cost of link building in Japan depends on the method, the publishers involved and the industry. There is no standard price list.

The main cost factors are:

• Earned or paid. Editorial links cost mainly time for research, Japanese content and outreach. Sponsored placements carry a fee per article.
• Publisher reach. Major Japanese media charge more for sponsored content than niche blogs, and they accept fewer advertisers.
• Native Japanese content. Articles must be written or edited by native Japanese writers. Translation-only content is often rejected and performs poorly.
• Industry. Finance and crypto placements usually cost more and are accepted by fewer publishers. Online casino promotion aimed at Japan is prohibited.
• Campaign length. Steady campaigns over several months cost more in total but build a more natural profile than short bursts.

As a general reference, links from authoritative sites range from around 100 euros to several thousand euros. The price depends on the linking site’s authority, the industry and the type of backlink. Current prices for individual Japanese sites are listed in the marketplace.

How long does link building in Japan take?

Link building in Japan usually takes months rather than weeks to show measurable results, and no one can promise a specific ranking or date. Results depend on your starting point, your competitors and the quality of your Japanese site and links.

Google is explicit on this point. Its guidance on hiring an SEO states that no one can guarantee a number one ranking on Google, and it advises caution towards anyone claiming otherwise. The same guidance recommends asking any provider what results to expect, over what timeframe, and how success will be measured.

Several factors shape the timeline:

• Discovery. Search engines must find and process new links. Links on frequently updated Japanese sites are found faster.
• Competition. Competitive Japanese markets such as finance, beauty, travel and electronics take longer than niche topics.
• Your Japanese site. A fast, well-structured Japanese site with native content responds sooner than a thin translated section.
• Relationships. Editorial links in Japan often depend on relationships that take time to build.

Review progress quarterly using Japanese data in Search Console and Bing Webmaster Tools.

Can you build Japanese links from outside Japan?

You can build Japanese links from outside Japan, but only with native Japanese language skills and realistic expectations about relationships. Most failed attempts come from treating Japan as a translation job.

The practical requirements are:

• Native Japanese writing. Outreach messages, assets and sponsored articles must be written or edited by native speakers.
• Japanese business etiquette. Polite, well-structured communication matters. Pushy or overly casual outreach is usually ignored.
• Time zone and responsiveness. Japanese publishers expect timely replies during Japanese business hours.
• A credible Japanese presence. A proper Japanese website, Japanese contact information and, where relevant, Japanese partners all make publishers more willing to work with you.

What are the pros and cons of investing in Japanese links?

Investing in Japanese links pays off when Japan is a real market for your business. The opportunity is large, but so are the language and compliance demands.

What are the most common link building mistakes in Japan?

The most common mistakes in Japan come from underestimating the language, the advertising rules or the importance of relationships. These are the ones that cost foreign brands the most.

1. Unlabelled sponsored content. Paid articles without a clear 広告 or PR label breach the stealth marketing rules, and the advertiser bears the responsibility.
2. Paid links that pass ranking credit. Paid links without rel=”sponsored” or rel=”nofollow” break Google’s link spam policy.
3. Machine-translated Japanese. Wrong scripts, inconsistent politeness and unnatural phrasing damage trust immediately.
4. Ignoring Bing. With about a third of Japanese searches, Bing visibility is worth monitoring.
5. Relying on press release links. Links in distributed press releases are not a ranking tactic, and optimised anchors in them are a named spam pattern.
6. Promoting online casinos to Japan. Since September 2025, presenting online casino sites and inducing people to gamble online has been prohibited in Japan.
7. Chasing authority scores. A high third-party score on an unrelated site is worth less than a link from a relevant Japanese site.
8. Exact-match anchor text. Repeating commercial phrases across many links creates an unnatural pattern.
9. Not measuring Japan separately. Without Japanese data filters in Search Console and Bing Webmaster Tools, you cannot tell what your Japanese links achieve.

How does Japan compare with Western link building markets?

Japan differs from most Western markets in its search engine mix, its writing system and its advertising rules. A strategy designed for a European market needs real adaptation before it works in Japan.

If you target Japan alongside other markets from one website, give each market its own language version connected with hreflang. Build links to each version from that market’s own websites. Our overview of search engine optimisation explains how links fit into a multi-market setup.

How SEO Butler helps with Japanese placements

We help clients procure sponsored placements on established Japanese sites through our self-serve backlink marketplace. Placements are labelled as advertising on the publishing site, and links carry rel=”sponsored”, in line with Google’s policies and Japan’s stealth marketing rules.

We also produce native Japanese content for clients’ own websites and for the placement articles. Our in-house Japanese content team writes and edits it, so the Japanese reads naturally to Japanese readers.

Separately, we run a portfolio of websites of our own. That is where our day-to-day experience with Japanese search comes from.

This page is general information about search marketing in Japan. It is not legal or compliance advice. Advertising and gambling rules in Japan change, and they apply differently depending on your industry and business model. Check the current requirements with the relevant authorities or a qualified adviser before planning a campaign. The stealth marketing rules under the Premiums and Representations Act are administered by the Consumer Affairs Agency (消費者庁). Online casino gambling is illegal in Japan, and promoting online casinos to people in Japan has been prohibited since 25 September 2025 under the amended Basic Act on Gambling Addiction Countermeasures. If gambling is causing problems for you or someone close to you, contact your local mental health and welfare centre (精神保健福祉センター) for confidential advice. Google’s rules on paid links are published in its spam policies.

FAQ

Do sponsored articles in Japan have to be labelled as advertising?

Yes, sponsored articles aimed at Japanese consumers must be clearly labelled. Since 1 October 2023, stealth marketing has been treated as an unfair representation under the Premiums and Representations Act. Labels such as 広告, PR or プロモーション, placed where readers see them first, make the commercial nature clear. Links in the article should also carry rel=”sponsored” under Google’s policies.

Is Yahoo! JAPAN a separate search engine for SEO purposes?

Yahoo! JAPAN is a separate service, but its organic search results use Google’s search technology, which Yahoo Japan Corporation adopted in 2010. In practice, a link profile that works for Google also works for Yahoo! JAPAN. Bing is the second independent engine worth monitoring in Japan.

Why does Bing matter more in Japan than in Europe?

Bing matters more in Japan because it holds a much larger share of searches there. StatCounter put Bing at 32.1% of the Japanese market in July 2026, compared with under 8% in Denmark and Sweden. Monitoring your Japanese pages in Bing Webmaster Tools alongside Google Search Console gives a fuller picture of your visibility.

Can English content earn links from Japanese websites?

English content earns very few links from Japanese websites. Most Japanese publishers write for Japanese-speaking readers and link to Japanese-language resources. Assets written by native Japanese writers, such as local data, guides and expert commentary, are far more likely to earn Japanese links.

Can online casinos build links in Japan?

No. Online casino gambling is illegal in Japan, and since 25 September 2025 the amended Basic Act on Gambling Addiction Countermeasures has prohibited presenting online casino sites and inducing people online to gamble illegally. That covers posting links, advertising and aggregation sites, so online casino link building aimed at Japan is not a lawful option.