News
OpenAI will watermark ChatGPT text in the EU
OpenAI adds an invisible watermark to ChatGPT and Codex text in the EU, with an API opt-in worldwide. Edits weaken it, and Google does not use it.
Content strategy that survives algorithm change
What Content strategy means
Content strategy in search is the deliberate choice of which topics a site covers in depth, how those pieces link to each other, and what standard of evidence each one meets. Sites with genuine topical depth and verifiable sourcing move less in core updates than sites assembled around keyword volume.
News
Google ties more spam updates to a flood of new content
At Search Central Live, Google said spam updates target much new content, AI helps catch it, and scaled content now worries it more than link spam.
News
Google Discover eligibility gate: what Google's analyst said
Google's Discover trust and safety analyst described a three-way eligibility gate and image rules at Search Central Live Barcelona, per a ROAST recap.
News
Google warns against fake author profiles in its guidance
Google's helpful content page now calls fabricated creator profiles deception: AI headshots, made-up names and false credentials.
News
Google adds a main content section to its helpful content page
Google's people-first content page now defines main content and lists four attributes raters assess: effort, originality, talent or skill, and accuracy.
News
How Google turns a query into results, per a Barcelona recap
A ROAST recap of Mueller and Illyes in Barcelona: synonym expansion, AI fan-out queries missing from Search Console, and retrieval before ranking.
News
Google's AI contribution pilot pays about 100 publishers, report says
The Information reports Google pays about 100 publishers in its AI contribution pilot, with payments for several smaller sites under 0.1% of ad revenue.
News
Cloudflare moves Monetization Gateway and Pay Per Use into beta
Cloudflare put two AI payment products into beta on 30 September 2026: per-request charges for agents, and monthly payouts to publishers for reported use.
News
Google Ads allows business name mismatch with domain
Google Ads updated its business name requirements policy, permitting name differences from destination domains for verified brands while barring resellers.
News
Google says fact-checking AI content is critical before publishing
Google updated its generative AI content guide on 1 October 2026: manually fact-check and review AI output, including titles, alt text and structured data.
News
Google removes the Search profile Follow button on desktop
Google appears to have dropped the Follow button for Search profiles on desktop results, though it stays on mobile. It reportedly returned days later.
News
Google's SAFE paper targets AI slop channels, not web pages
Google's three-page SAFE paper describes AI agents that investigate clusters of channels posting AI slop. It never mentions web search or the spam update.
Reports
What to do after a Google core update: Google's recovery steps
Google's own recovery steps after a core update: wait a week, compare the right dates, size the drop, self-assess and avoid quick fixes.
Tools
Reading age calculator: Flesch-Kincaid grade level
Reading age calculator: get the Flesch-Kincaid grade level of your text, the reading age it implies and its longest sentences. Free, runs in your browser.
Algorithm Updates
April 2021 product reviews update: dates, what changed and what to do
Google's first product reviews update launched on 8 April 2021 for English reviews and finished on 22 April. What it rewarded and what to do now.
Algorithm Updates
August 2018 core update (Medic): dates, what changed, what to do
Google's August 2018 broad core update was confirmed on 1 August 2018 and complete by 8 August. The industry nicknamed it Medic; Google said it was global.
Algorithm Updates
August 2022 helpful content update: dates, what changed and what to do
Google's first helpful content update ran 15 days from 25 August to 9 September 2022, adding a site-wide signal against unhelpful content.
Algorithm Updates
August 2025 spam update: dates, what changed and what to do
Google's August 2025 spam update ran just under 27 days from 26 August to 22 September 2025 and applied globally and to all languages.
Algorithm Updates
December 2021 product reviews update: dates and what to do
Google's December 2021 product reviews update ran 20 days, 1 to 21 December 2021, and added two new best practices for review content.
Algorithm Updates
December 2022 helpful content update: dates and what to do
Google's December 2022 helpful content update ran 38 days from 5 December 2022 to 12 January 2023, improved the classifier and covered all languages.
Algorithm Updates
December 2024 spam update: dates, what changed and what to do
Google's December 2024 spam update ran 7 days from 19 to 26 December 2024, starting the day after the December 2024 core update finished.
Algorithm Updates
Deepfake ranking update (2024): how Google demotes explicit fakes
On 31 July 2024 Google updated its ranking systems to demote explicit non-consensual fake content and sites with many removals for it.
Algorithm Updates
February 2023 product reviews update: dates and what to do
Google's February 2023 product reviews update ran 14 days from 21 February to 7 March 2023 in 11 languages. Dates, scope and review guidance.
Algorithm Updates
February 2026 Discover update: dates, what changed and what to do
Google's February 2026 Discover core update ran about 22 days, 5 to 27 February 2026, for English-language users in the US. What changed and what to do.
Algorithm Updates
Fred update (2017): what Google said and what it means now
Fred is the name attached to a March 2017 Google ranking change. Google acknowledged an update but never detailed it; here is what is on record.
Algorithm Updates
Freshness update (2011): what it changed and what it means now
Google's freshness update of 3 November 2011 changed when recent results rank. Google said it noticeably impacted 6 to 10% of searches.
Algorithm Updates
Hummingbird (2013): what Google changed and what it means now
Hummingbird was Google's rebuilt ranking algorithm of August 2013, revealed on 26 September 2013 and aimed at the meaning of whole queries.
Algorithm Updates
July 2022 product reviews update: dates and what to do
Google's July 2022 product reviews update ran 6 days, 27 July to 2 August 2022, for English-language product reviews. What Google confirmed.
Algorithm Updates
June 2021 spam update: dates, what changed and what to do
Google's June 2021 spam update ran in two one-day parts, on 23 and 28 June 2021. What Google confirmed about it and what its spam policies say today.
Algorithm Updates
June 2024 spam update: dates, what changed and what to do
Google's June 2024 spam update ran 7 days from 20 to 27 June 2024. Google gave no figures; sites that dropped should review its spam policies.
Algorithm Updates
March 2022 product reviews update: dates and what to do
Google's March 2022 product reviews update ran 14 days, 23 March to 6 April 2022, and clarified how ranked lists and best-of reviews are judged.
Algorithm Updates
March 2024 spam update: dates, what changed and what to do
Google's March 2024 spam update ran just under 15 days from 5 to 20 March 2024, launched with the March 2024 core update and three new spam policies.
Algorithm Updates
Mayday update (2010): what changed and what it means now
Mayday was a 2010 Google ranking change for long tail queries, named by WebmasterWorld users and confirmed by Matt Cutts on video.
Algorithm Updates
November 2021 spam update: dates, what changed and what to do
Google's November 2021 spam update ran from 3 to 11 November 2021. What Google confirmed, what it did not, and what spam policies say to do.
Algorithm Updates
Panda 2.0 (2011): global English rollout and blocked-site data
On 11 April 2011 Google rolled Panda out to all English-language users and began using data on sites users blocked. About 2% of U.S. queries were affected.
Algorithm Updates
Panda 4.1 (2014): a slow Panda rollout, 3% to 5% of queries
Google confirmed Panda 4.1 on 25 September 2014, a slow rollout Google said would affect about 3% to 5% of queries depending on location.
Algorithm Updates
Panda 4.2 (2015): the slow Panda refresh and what it means now
Google confirmed a Panda refresh in July 2015 that hit 2% to 3% of English queries and took months to roll out. It was the last numbered Panda.
Algorithm Updates
Panda 4.0 (2014): a new Panda algorithm, 7.5% of queries
Matt Cutts announced Panda 4.0 on 20 May 2014, a new version of the Panda algorithm that Google said affected about 7.5% of English queries.
Algorithm Updates
Panda update (2011): what it changed and what it means now
Google's Panda update of 24 February 2011 cut rankings for low-quality sites and noticeably affected 11.8% of queries. It is now in core ranking.
Algorithm Updates
Passage ranking (2021): what it changed and what it means now
Google's passage ranking went live for US English queries on 10 February 2021. What Google said it does, its stated reach, and what to do today.
Algorithm Updates
Pirate update (2012): what it changed and what it means now
In August 2012 Google began demoting sites with many valid copyright removal notices. The industry called it the Pirate update. What applies today.
Algorithm Updates
May 2015 quality update: what changed and what it means now
In May 2015 Google confirmed a change to how its core algorithm processes quality signals. The industry called it the Quality update, or Phantom 2.
Algorithm Updates
RankBrain (2015): what Google's first AI ranking system does
Google disclosed RankBrain on 26 October 2015 as a machine-learning system for interpreting searches. It is still one of Google's ranking systems today.
Algorithm Updates
Scraper filter (2011): Google's change against copied content
In late January 2011 Google launched an algorithm change favouring original content over sites that scraped or copied it. What changed.
Algorithm Updates
September 2022 product reviews update: dates and what to do
Google's September 2022 product reviews update ran six days, 20 to 26 September 2022, on English-language reviews, overlapping a core update.
Algorithm Updates
September 2023 helpful content update: dates and what to do
Google's September 2023 helpful content update ran about 13 and a half days from 14 to 28 September 2023 and improved the helpful content classifier.
Algorithm Updates
Site reputation abuse policy (2024): dates, rules and what changed
Google's site reputation abuse spam policy took effect on 5 May 2024, was tightened in November 2024 and changed for the EEA in August 2026.
Algorithm Updates
Topic authority system (2023): how Google ranks expert news sources
Google described its topic authority system on 23 May 2023. It helps surface expert and local publications for news queries in Search and News.
News
Google Ads adds raw IP addresses to Customer Match
Google Ads expanded Customer Match to eight columns, accepting raw IP addresses and interaction timestamps outside Europe to improve account match rates.
Reports
YouTube citation share across AI search platforms, BrightEdge
BrightEdge measured YouTube's citation share in Google AI Overviews, AI Mode, Perplexity and ChatGPT from May 2024 to September 2025. Here are its figures.
Research
Ahrefs 600,000-page study: AI content and Google rankings
Ahrefs checked the top 20 Google results for 100,000 keywords with its AI detector and found almost no link between AI share and ranking position.
Research
Title tags, H1s and content grade: what Backlinko found
Backlinko's 11.8M-result study found exact-match titles and H1s common on page one but unrelated to rank, while Clearscope content grade tracked position.
Studies
Backlinko content relaunch: one post, organic traffic up 260.7%
Brian Dean reports a 14-day content relaunch of Backlinko's White Hat SEO post: organic traffic up 260.7% and the target keyword from 7th to 4th.
News
AdSense drops its identity verification threshold to $0
AdSense now asks for identity verification before an account can show ads or receive payments. The address verification threshold stays at $10.
Studies
Digital PR case: 12 links, 143k visits in 6 weeks, per OneLittleWeb
OneLittleWeb reports a six-week Canadian digital PR campaign earned a finance blog 12+ editorial links and 143k+ new organic visits. What the case shows.
Studies
One publisher's Discover-driven traffic and revenue, per Adsterra
Adsterra's case study of an independent Indian publisher: 8.45 million impressions, 703,948 clicks and $6,976.06 in revenue, about 95% from Discover.
Studies
Pillar pages lifted an agency's organic traffic 744% in 13 months
Campaign Creators reorganized six years of blog posts into three pillar pages and reports organic visits rising from 1,091 to 9,214.
Tools
Open Graph tag checker for required og properties
Open Graph tag checker: tests pasted og meta tags for the four required properties, relative URLs, duplicates and og:type. Free, runs in your browser.
News
Google Search profiles get new article cards and a lower bar
Google cut the follower requirement for Search profiles to 10,000, added richer article views, and lets one account manage up to 10 profiles.
Studies
JunkCarsUs: HCU recovery from 30-50 to 400-500 clicks a day
SeoProfy's case study on JunkCarsUs: after the September 2023 HCU, pruning pages and rewriting templates preceded a rise to 400-500 daily clicks.
Studies
Programmatic SEO case: 100 pages, 398% traffic, per Suso Digital
Suso Digital reports a software supply chain client grew organic traffic 398.49% in 18 months from about 100 template pages. What the case shows.
Tools
Nofollow link checker: rel sponsored and ugc audit
Nofollow link checker for pasted HTML: audits every link's rel against Google's sponsored, ugc and nofollow rules. Free, runs in your browser.
Research
What happened when someone actually A/B tested author bylines
SearchPilot ran a real controlled SEO split test on author bylines and bios. Result: no detectable ranking gain, and possibly a small loss.
Studies
Home Science Tools: pruning 200 blog pages, organic sessions up 104%
Inflow's case study on HomeScienceTools.com: removing roughly 200 low-value blog pages preceded a 104% rise in sessions and 102% rise in transactions.
News
Google splits site reputation enforcement along the EEA border
From 30 August, a site reputation manual action changes results only outside the EEA. Inside it, the section is separated and left to rank on its own.
News
Search Console now measures your TikTok, X and YouTube posts
Platform properties let a creator see the queries that lead people to their Instagram, TikTok, X or YouTube content on Google Search and Discover.
Tools
Meta title and description checker with SERP preview
Meta title and description checker: measure title and meta description length in pixels and characters with a Google preview. Free, runs in your browser.
Tools
Flesch reading ease and reading time calculator
Flesch reading ease calculator with reading time: score pasted text and see its band, word, sentence and syllable counts. Free, runs in your browser.
Tools
Keyword cannibalization checker for page titles and H1s
Keyword cannibalization checker: compare titles or H1s across your pages and flag near-duplicate pairs by word overlap. Free, runs in your browser.
Tools
Social media link preview for Facebook, LinkedIn and X
Social media link preview: see how your og:title, description and image look as a shared card on Facebook, LinkedIn and X. Free, runs in your browser.
Tools
Keyword density checker with word count
Keyword density checker: count words and whole-phrase keyword matches in your draft, then see density as a percentage. Free, runs in your browser.
Studies
One publisher's Google Discover traffic loss and recovery
A consultant's self-reported case: a client site's Discover impressions hit zero for weeks, then recovered after a quality fix. One case, not a study.
Studies
SearchPilot: FAQ content lifted traffic, FAQ schema did not
SearchPilot split-tested FAQ content and FAQ schema. Content added 9.7% more organic clicks; removing schema alone changed nothing.
Studies
Zero-click Google searches hit 68% in the US
SparkToro and Similarweb's June 2026 report puts US Google zero-click search at 68.01%, up from 60.45% in 2024.
Research
E-E-A-T and author schema: what is actually verifiable
SEO content repeats precise E-E-A-T ranking-weight percentages. We checked the two most-cited figures against their sources and Google's own documentation.
Research
Does content length correlate with rankings and AI citations?
Ahrefs' December 2025 study puts the word count to AI Overview citation correlation at 0.04. Backlinko's 11.8M-result study finds no ranking edge either.
Reports
What Google's own Discover documentation actually says
Google's Discover eligibility page sets an exact image-size floor and a named list of content policies. Here is what it says, word for word.
Research
Featured snippet stats: which numbers are real, and which aren't
Featured snippet prevalence and CTR figures vary by nearly 2x across sources. Here is which trace to a real, dated study, and which don't trace anywhere.
News
Google ships its first Discover-only algorithm update
Google's first Discover-only core update ran three weeks, targeted clickbait and thin republishing. Discover clicks arrive fast: over 70% land on day one.