rel="sponsored" と rel="ugc"

暫定日本語訳:何 rel="sponsored" と rel="ugc" mean, いつ へ 使用 各, どのように へ combine them とともに nofollow, と なぜ それら're hints — ない strict directives — 向けに 有料 と ユーザー-generated links.

初回公開:2026年6月23日 · 最終更新:2026年8月4日 · Advanced
言語

暫定日本語訳:rel="sponsored" tags 有料, affiliate, と advertising links; rel="ugc" tags ユーザー-generated links like comments と forum posts. Google introduced both on September 10, 2019, alongside making nofollow hint. All three are hints, ない strict directives — generally ない followed または counted 向けに ランキング, ただし Google reserves right へ 使用 information. あなた できる combine values (rel="sponsored nofollow", rel="ugc nofollow"), と あなた do ない have へ migrate あなた existing nofollows. あなた DO still have へ flag 有料 links, though: undisclosed 有料 links その pass signals are link spam と できる trigger 手動 action. と rel="sponsored" is 検索-engine signal, ない FTC disclosure — それらの are two separate obligations. In my 2020 study of top 110k サイト, real-world adoption was tiny: ~0,44% of referring domains 使用 ugc と ~0,01% 使用 sponsored.

暫定日本語案: TL;DR — sponsored = 有料/affiliate/ad links; ugc = ユーザー-generated links 暫定日本語案: (comments, forum posts). Google introduced both on Sept 10, 2019, alongside 暫定日本語案: making nofollow hint. All three are hints, ない strict directives — 暫定日本語案: generally ない followed または counted 向けに ランキング, ただし Google 保持 right へ 使用 暫定日本語案: information. あなた できる combine values (rel="sponsored nofollow", 暫定日本語案: rel="ugc nofollow", rel="ugc sponsored"), と あなた do ない have へ migrate 暫定日本語案: existing nofollows — switch “if or when it is convenient.” あなた do still have 暫定日本語案: へ flag 有料 links: undisclosed 有料 links その pass signals are link spam 暫定日本語案: と できる trigger 手動 action. rel="sponsored" is 検索-engine signal, 暫定日本語案: ない FTC disclosure — do both. Adoption is tiny: in my 2020 study of top 110k サイト, ~0,44% 暫定日本語案: of referring domains 使用 ugc と ~0,01% 使用 sponsored. 暫定日本語案: Evidence for this claim Google recommends sponsored for paid placements and ugc for links in user-generated content such as comments and forum posts. Scope: Google link-qualification guidance. Confidence: high · Verified: Google Search Central: Qualify outbound links Evidence for this claim Google's spam policies require paid links intended for ranking purposes to be qualified with sponsored or nofollow. Scope: Google Search link-spam policy; separate consumer-disclosure laws may also apply. Confidence: high · Verified: Google Search Essentials: Link spam

何 それら are, と どこ それら came から

暫定日本語案: On September 10, 2019, Google introduced two 新しい link-relationship attribute 暫定日本語案: values と, at 同じ time, changed どのように existing nofollow 機能. Danny 暫定日本語案: Sullivan と Gary Illyes announced both:

  • 暫定日本語案: rel="sponsored"“Use the sponsored attribute to identify links on your site that were created as part of advertisements, sponsorships or other compensation agreements.” Google’s docs put it plainly too: mark links その 暫定日本語案: are advertisements または 有料 placements (commonly called 有料 links) とともに 暫定日本語案: sponsored value. その covers display ads, 有料 placements, advertorials, と 暫定日本語案: affiliate links.
  • 暫定日本語案: rel="ugc"“UGC stands for User Generated Content, and the ugc attribute value is recommended for links within user generated content, such as comments and forum posts.”

暫定日本語案: third member of family, nofollow, is sibling topic, ない 暫定日本語案: subject here — think of it as catch-all. Google’s guidance: 使用 nofollow 暫定日本語案: value いつ other values don’t apply と あなた’d rather Google ない associate あなた 暫定日本語案: サイト とともに, または クロール, linked ページ から あなた サイト.

それら’re hints, ない directives

暫定日本語案: この is load-bearing concept. All three link attributes — 暫定日本語案: sponsored, ugc, と nofollow — are “treated as hints about which links to consider or exclude within Search.” Google 使用 これらの hints “along with other signals” へ decide どのように へ handle link.

暫定日本語案: In practice その means linked ページ is generally ない followed と link 暫定日本語案: isn’t counted 向けに ランキング — 同じ effect nofollow had 前に. ただし “hint” 暫定日本語案: is doing real 機能: Google moved away から 古い “completely ignore” model 暫定日本語案: precisely so it できる 保つ information. As announcement put it, “By shifting to a hint model, we no longer lose this important information, while still allowing site owners to indicate that some links shouldn’t be given the weight of a first-party endorsement.” と: “In most cases, the move to a hint model won’t change the nature of how we treat such links.”

暫定日本語案: So don’t read sponsored/ugc as guarantee — それら’re signal Google 可能性がある 使用, 暫定日本語案: ない switch あなた flip. この is 同じ hint logic その governs どのように 暫定日本語案: robots meta tag’s nofollow directive と link-level nofollow behave, と 暫定日本語案: it’s なぜ none of これらの reliably block クロール (more on その below).

あなた don’t have へ change あなた existing nofollows

暫定日本語案: If あなた take one operational thing から この ページ, take この: there is no 暫定日本語案: migration へ do. Google できる ない have been clearer — “There’s absolutely no need to change any nofollow links that you already have.” 向けに 有料 links 暫定日本語案: specifically, “You don’t need to change any existing markup… However, we recommend switching over to rel="sponsored" if or when it is convenient.”

暫定日本語案: nofollow is still acceptable way へ flag 有料 links; sponsored is simply 暫定日本語案: preferred. 向けに purpose of staying clear of link-scheme action, Google 暫定日本語案: treats sponsorednofollow 同じ. So nothing breaks if あなた CMS, plugin, 暫定日本語案: または template still emits nofollow everywhere.

Combining values

暫定日本語案: あなた できる put more than one rel value on single link, space- または 暫定日本語案: comma-separated. Google: “You may specify multiple rel values as a space- or comma-separated list.” 有効, useful combinations:

<!-- a paid link, also flagged the old way for older tools -->
<a href="https://example.com" rel="sponsored nofollow">…</a>

<!-- a comment link, also flagged nofollow for backwards compatibility -->
<a href="https://example.com" rel="ugc nofollow">…</a>
<a href="https://example.com" rel="ugc,nofollow">…</a>

<!-- a sponsored link that arrived via user-generated content -->
<a href="https://example.com" rel="ugc sponsored">…</a>

暫定日本語案: その 最後 one is straight から Google: rel="ugc sponsored" is a perfectly valid attribute which hints that the link came from user-generated content and is sponsored.” point of pairing とともに nofollowrel="nofollow ugc" — is 暫定日本語案: backwards compatibility: it lets services その don’t yet understand newer 暫定日本語案: attributes still see nofollow.

Which attribute すべき あなた 使用? (decision guide)

  • 暫定日本語案: Affiliate / Amazon links → sponsored. これらの are 有料 placements; it’s 暫定日本語案: recommended value.
  • 暫定日本語案: Display ads, 有料 placements, advertorials → sponsored (または nofollow — 暫定日本語案: both 保つ あなた compliant).
  • 暫定日本語案: Blog comments / forum posts → ugc. If あなた want へ recognize と reward 暫定日本語案: trustworthy contributors, あなた might 削除 attribute から links posted by 暫定日本語案: members who have consistently made high-quality contributions 超えて time — 暫定日本語案: Google explicitly 許可 この.
  • 暫定日本語案: Guest posts → flag any 有料 ones as sponsored; 向けに genuinely earned, 暫定日本語案: high-quality contributions あなた trust, あなた できる choose へ drop attribute.
  • 暫定日本語案: Internal links → almost 決して. I’m technical SEO, と I できる’t think of 暫定日本語案: single ケース どこ I’d 使用 nofollow on my internal links. いつ I see 暫定日本語案: sponsored on internal link it’s usually ユーザー error — though some サイト 追加 暫定日本語案: it 自動 向けに guest posts または advertorials.
Evidence for this claim Google recommends sponsored for paid placements and ugc for links in user-generated content such as comments and forum posts. Scope: Google link-qualification guidance. Confidence: high · Verified: Google Search Central: Qualify outbound links

暫定日本語案: There’s no real downside へ being little 超えて-cautious. As Google put it, 暫定日本語案: “There’s no wrong attribute except in the case of sponsored links. If you flag a UGC link or a non-ad link as sponsored, we’ll see that hint but the impact — if any at all — would be at most that we might not count the link as a credit for another page.” Translation: 超えて-tagging is harmless; 下で-tagging real ad 暫定日本語案: is だけ real risk.

暫定日本語案: Here’s obligation あなた できる’t opt out of. Buying または selling links その pass 暫定日本語案: ランキング signals — “Exchanging money for links… Sending someone a product in exchange for them writing about it and including a link” — is link spam 下で 暫定日本語案: Google’s policies, as is advertorial または native advertising どこ payment buys 暫定日本語案: links その pass ランキング credit.

暫定日本語案: Google enforces この in two distinct ways, と それら’re ない interchangeable. Its 暫定日本語案: spam-policies ページ says: “We detect policy-violating practices both through automated systems and, as needed, human review that can result in a manual action.” Automated systems できる simply discount links または let サイト “rank lower in results or not appear in results at all” — その’s separate から 暫定日本語案: 手動 action, human-reviewed escalation 人々 usually mean by 暫定日本語案: “penalty.” Google’s own wording doesn’t say which path is more 一般的な; 暫定日本語案: point is その “undisclosed paid link → manual action” isn’t だけ, または even 暫定日本語案: guaranteed, consequence. Either way, qualifying link correctly is 何 暫定日本語案: 保持 あなた clear of both.

暫定日本語案: resolution is exactly attribute この 記事 is について. Google: “Google does understand that buying and selling links is a normal part of the economy of the web for advertising and sponsorship purposes. It’s not a violation of our policies to have such links as long as they are qualified with a rel="nofollow" or rel="sponsored" attribute value to the <a> tag.” So 有料 links are fine — 暫定日本語案: あなた just have へ qualify them. (Note Google names nofollowsponsored 向けに 暫定日本語案: 有料 ケース; ugc is 向けに ユーザー-generated コンテンツ, ない 有料-link ケース.)

FTC angle: separate obligation

暫定日本語案: この trips 人々 up, so I’ll be explicit: rel="sponsored" is ない FTC 暫定日本語案: disclosure. It’s machine-readable signal その tells 検索エンジン link 暫定日本語案: is 有料. US law ( FTC’s endorsement rules) separately 必要とする visible 暫定日本語案: disclosure へ readers いつ あなた have material connection — affiliate links, 暫定日本語案: sponsored posts, 無料 商品. それら’re complementary, ない substitutes. Do both: 暫定日本語案: qualify link とともに sponsored tell あなた readers in plain 言語.

どのように この interacts とともに クロール と インデックス登録

暫定日本語案: 一般的な misconception is その tagging link as sponsored または ugc removes 暫定日本語案: target から Google’s インデックス登録 または blocks it から being クロール. It doesn’t. から 暫定日本語案: Google’s docs: “Links marked with these rel attributes will generally not be followed. Remember that the linked pages may be found through other means, such as sitemaps or links from other sites, and thus they may still be crawled.”

暫定日本語案: So qualifying link is ない クロール block. If あなた actually want へ stop URL 暫定日本語案: of あなた own から being クロール, その’s robots.txt; へ 保つ ページ out of 暫定日本語案: インデックス登録, その’s noindex. There’s また timing nuance worth 保持 straight: 向けに 暫定日本語案: ランキング, hint model was immediate on Sept 10, 2019; 向けに クロール と 暫定日本語案: インデックス登録, nofollow became hint as of March 1, 2020 — don’t conflate 暫定日本語案: two dates. この is exactly なぜ これらの attributes are cross-reference point から 暫定日本語案: クロール material: それら’re hints その shape クロール と ランキング, ない strict 暫定日本語案: directives その wall ページ off.

暫定日本語案: One more limitation: これらの rel values だけ 機能 in crawlable <a> elements. 暫定日本語案: だけ nofollow また exists as robots meta tag — sponsoredugc do ない.

Does Bing support これらの

暫定日本語案: Yes. Bing 追加 support 向けに rel="sponsored"rel="ugc" (on top of its 暫定日本語案: long-standing nofollow support) in 2020. Bing’s guideline asks あなた へ 作る 暫定日本語案: reasonable effort へ ensure 有料 または advertisement links 使用 nofollow, 暫定日本語案: sponsored, または ugc so それら aren’t followed と don’t impact rankings. と like 暫定日本語案: Google, Bing treats them as hints — Bing spokesperson described them as “not as strong of a signal,” と Bing has historically said it 可能性がある still follow such links 暫定日本語案: if it deems necessary.

どのように many サイト actually 使用 them

暫定日本語案: Almost none, 最後 time I 測定. In 可能性がある 2020 I studied top 110k サイト by 暫定日本語案: Ahrefs 順位 (see full research) — “In fact, we started collecting data and added filters to the tool within two days of the official announcement.” headline: “Only 0,44% of referring domains to the top 110k sites use rel="ugc", and it’s even lower with rel="sponsored" seen on only 0,01% of referring domains.” At backlink 暫定日本語案: level it’s 0.016% 向けに ugc0.008% 向けに sponsored. 向けに comparison, 暫定日本語案: 10.6% of all backlinks へ それらの サイト are nofollow.

暫定日本語案: なぜ so low? Because 新しい attributes are optional と there’s no forced 暫定日本語案: adoption — “Most sites are just using nofollow instead.” 何 movement there is 暫定日本語案: tracks プラットフォーム: “WordPress added UGC support in version 5,3, and we found that some of the plugins have added support for sponsored. That accounts for the majority of adoption so far.” My conclusion then still holds: なしで forced 暫定日本語案: adoption, ugcsponsored する need systems 人々 使用 へ adopt them by 暫定日本語案: デフォルト 前に それら get 一般的な. (その study is から 2020 — treat exact 暫定日本語案: percentages as snapshot, ない 現在’s number.)

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