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Archive The 2025 Web Almanac puts the median home page at 2.86 MB on desktop and 2.56 MB on mobile, with images and JavaScript the two largest parts.
Sep 25 · HTTP Archive
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.
Sep 25 · BrightEdge
Adobe's May 2026 data shows AI-referred retail visits converting 54% better than non-AI traffic, a reversal from a year earlier.
Sep 24 · Adobe Digital Insights
Cloudflare Radar's 2025 Year in Review puts mobile at 43% of global requests, up from 41%, with mobile ahead in 117 countries and regions.
Sep 24 · Cloudflare
Semrush clickstream data on Google AI Mode's first two months: usage grew about 4x to just over 1% of sessions, and 92-94% ended without an external click.
Sep 23 · Semrush
NewzDash's analysis of 400+ news publishers shows Discover's share of Google traffic rising from 37.03% in 2023 to 67.51% in Q4 2025.
Sep 23 · Search Engine Roundtable
Semrush's refreshed study: Related searches (95.32%) and People Also Ask (90.03%) almost always appear beside an AI Overview, and ads now reach 25%.
Sep 23 · Semrush
Google's own disclosures put the Shopping Graph at 45 billion listings in October 2024, 50 billion in January 2026, and past 60 billion by May 2026.
Sep 22 · Google
Whitespark surveyed 47 local search experts on 187 ranking factors for 2026. Here is the verified top 10 for the local pack and what changed since 2023.
Sep 21 · Whitespark
A robots.txt scan of 100 top UK and US news sites finds CCBot blocked by 75%, the most of any AI bot. Google-Extended is the least-blocked training bot.
Sep 20 · BuzzStream
Portent's aggregate analysis of 100 million page views across 20 sites found B2C conversion falls from 3.05% at 1 second to 0.67% at 4 seconds.
Sep 19 · Portent
Seer Interactive tracked 49,358 queries and found comparison searches trigger an AI Overview 95.4% of the time, versus 27.3% for single words.
Sep 18 · Seer Interactive
The 2025 Web Almanac SEO chapter puts rel=canonical on 68% of desktop and 67% of mobile pages, up from 65%, with mismatches under 1%.
Sep 18 · HTTP Archive
Cloudflare reports AI training made up 52% of identified crawler requests in June 2026, up from 22% in Spring 2025, with search crawling shrinking.
Sep 18 · Cloudflare Blog
Datos and SparkToro's Q4 2025 clickstream shows 24.5% of US desktop Google searches ended with no click in December, versus 25.1% a year earlier.
Sep 18 · Datos, a Semrush company (with SparkToro)
The 2025 Web Almanac's INP data: 77% of mobile sites have good INP, popular sites trail at 63%, and mobile home pages beat inner pages 80% to 69%.
Sep 18 · HTTP Archive
EZY Research's 12-week server-log panel shows OpenAI and Anthropic crawlers fetching llms.txt in single digits while pulling robots.txt thousands of times.
Sep 18 · EZY Research
BrightEdge's tracking: only 17% of AI Overview citations also rank in the organic top 10, a figure flat for months, with wide swings by industry.
Sep 16 · BrightEdge
Similarweb measured 770.7 million monthly AI referral visits worldwide, up 117.4% year over year, led by marketplaces and news.
Sep 16 · Similarweb
The 2025 Web Almanac's CMS chapter breaks Core Web Vitals pass rates down by platform: Duda at 85%, Wix up from 55% to 74%, WordPress at 45%.
Sep 16 · HTTP Archive
The 2024 Web Almanac breaks JSON-LD down by schema.org type: WebSite tops out at 12.73% of mobile pages, Organization at 7.16%, Product at just 0.77%.
Sep 16 · HTTP Archive
Semrush Sensor's live index reads 2.1 out of 10 for mid-September 2026, but News and Finance run far hotter than Science or Health.
Sep 16 · Semrush
85 confirmed major Google updates since 2015, counted year by year, next to Google's own figure for total changes, and why the two must stay separate.
Sep 11 · Google
Eight confirmed updates, with Google's own start dates and rollout durations, and what the pattern says about when to judge a decline in your data.
Sep 10 · Google
StatCounter, Similarweb, Sensor Tower and OpenAI itself all published a 2026 ChatGPT usage figure. None of the four is measuring the same thing.
Sep 7 · Search Engine Land
From the May 2026 spam-policy revision to the August spam update, tracing enforcement against mass-produced, low-value content across 2026.
Aug 28 · Google Search Central
Five independent trackers measured llms.txt adoption since late 2025 and reported 7.4% to 28%, because none counted the same thing.
Aug 23 · Chris Humphrey
Studies put the AI Overview traffic hit from 24% to 80%. We traced seven quoted figures to source; four hold up, and they measure different things.
Jul 14 · SSRN (Saharsh Agarwal, Indian School of Business; Ananya Sen, Carnegie Mellon University)
Six precise stats on AI citation rates by content format circulate online. Two trace to real studies, one to a paper. Three fail verification.
Jul 13 · Wix Studio, AI Search Lab
Three trackers measured 2026 organic CTR by position and reported position 1 anywhere from 27.6% to 39.8%, because none used the same method.
Jul 11 · Backlinko
Semrush's own tracking: 6.49% of keywords in January 2025, a July peak near 24.61%, then 15.69% in November - the real trend, not a snapshot.
Jul 6 · Semrush
Tracing Google's mobile-first indexing announcements from 2016 to the 2023 completion notice, and its documentation on mobile-desktop content parity.
Jul 6 · Google Search Central Blog
Cloudflare network data: 7.9% of AI crawler requests got a 403 in H1 2026, and crawler 4xx rates tripled in a year, unlike robots.txt rule counts.
Jul 1 · TechnologyChecker.io
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.
Jun 30 · Google Search Central
Google's own dated numbers: 12 billion Lens searches a month in June 2023, nearly 20 billion by October 2024 - and why the 22%/26% claims don't check out.
Jun 30 · Google
Google has never published a percentage for how much link equity a 301 redirect passes. The 90-99% figure in circulation comes from somewhere else.
Jun 29 · Gary Illyes (Google)
Portent, Ahrefs and Search Engine Journal put Google's meta description rewrite rate at 71%, 62.78% and over 70% in 2020. Only two are real studies.
Jun 19 · Portent
Google's own dated posts trace the page experience rollout from 2020 to its 2022 desktop finish, and what the 2026 docs now drop.
Jun 13 · Google Search Central Blog
Independent.ie gained 55% mobile traffic on AMP. Kinsta lost 59% of its leads. Here is what really happened across five documented, named case studies.
Jun 5 · Search Engine Journal
Schema.org's own release notes put the vocabulary at 823 types and 1,529 properties as of version 30.0, alongside a new Google-backed usage dataset.
Jun 4 · Schema.org
Google's own Maps blog states 2025 review-fraud enforcement scale, and its April 2026 update bans staff review quotas and naming employees in reviews.
Apr 17 · Google
Penske Media sued Google over AI Overviews in 2025. The dated record: the complaint, Google's dismissal motion, Penske's opposition, and an EU complaint.
Feb 12 · PPC Land
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