AlgoholicVolume · algorithmsTel Aviv · EN
Last update · May 26, 2026

A working timeline · 1999 → 2026

Twenty-seven years of algorithm updates, reverse-engineered one shift at a time.

Every major ranking and retrieval system, with what changed, how it compressed, and what survived. Curated, dated, sourced. The longest continuous SEO archive in Hebrew or English.

Era I · 1999–2010

The link-graph era.

Before transformers, before quality classifiers, before user signals at scale. The web ranked itself with hyperlinks. Practitioners spent a decade learning to read graph centrality the way Google did.

1999nekuda begins

Pre-Google search · AltaVista, HotBot, Excite, Yahoo substrate

Five major engines, no consensus ranking algorithm, no PageRank. Each one weighted text differently. The practice begins.

title tagmeta keywordsdirectory submission
Practical lessonOptimise to the engine's logic, not a universal ranking factor.Algoholic fileFounder's notebook (private)
archive entry →
2000Sep

PageRank goes live · Google passes 1B URLs flagship

Citation-graph centrality becomes the dominant ranking signal. The link economy that defines the next decade begins here.

PageRanklink graphHITS
AffectsEvery search property, eventually.Mental modelA vote-counting machine for hyperlinks.
read 14 min →
2003Nov

Florida · the first major modern penalty wave

Black-hat tactics that had worked since 1999 stop working overnight. The first time SEOs collectively realise the platform has a position.

keyword stuffingover-optimisation
AffectsAffiliate & commerce sites with thin content.LessonTreat the platform as adversarial.
read 9 min →
2004Apr

Google AdWords Certification launches · I sit for it personal

First professional certification in paid search. I take the exam in spring 2004 — among the first Israelis to do so. The certification remains in good standing twenty-two years later.

paid searchcertification
SourceQuoted in Search Engine Land, March 2012.StatusActive since 2004.
SEL article →
2005Jan

nofollow attribute introduced

First structural admission that the link graph can be edited. Comment spam declines. Authority signals are now selective by default.

link graphlink attribution
AffectsBlogs, forums, UGC platforms.
read 7 min →
2008Mar

Universal Search · the SERP becomes a composite

Images, video, news, maps integrated into the SERP. The page is no longer ten blue links. The visibility unit fragments for the first time.

SERP layoutverticals
ForeshadowsStatement-level visibility, sixteen years later.
read 11 min →
Era II · 2011–2018

Quality & intent.

The link-graph alone stops working. Quality classifiers, semantic understanding, mobile-first indexing — Google starts asking what a page means, not just who links to it.

2011Feb

Panda · the first quality classifier flagship

Sitewide quality scoring goes into production. Content farms collapse. The first algorithm that operates at the site, not the page, level.

site-levelquality classifiercontent farm
AffectsDemand Media, eHow, Suite101, hundreds of agency clients.Algoholic caseThree Panda recoveries documented, 2011–2012.
read 18 min →
2012Apr

Penguin · the link-spam reckoning flagship

Decade-old link-building tactics get punished retroactively. PBNs die. The first algorithmic action with a recovery curve longer than the penalty itself.

link spamPBNretroactive
Algoholic caseFirst documented Penguin 1.1 recovery published May 2012.LessonSlow signals can punish you for fast decisions.
read 21 min →
2013Sep

Hummingbird · semantic understanding goes mainstream

First semantic ranking system at scale. Conversational queries become legible. The substrate that BERT will later perfect.

semanticentityconversational
Mental modelSearch engines start parsing intent, not just terms.
read 13 min →
2015Apr 21

Mobilegeddon · mobile-friendly as a ranking signal platform

Live diary of the rollout from a Tel Aviv office at 03:00. The actual impact was smaller than the industry feared; the lesson was bigger than the impact.

mobileplatform shift
Algoholic fileLive notes from launch night, Tel Aviv.Quote"The actual impact was 0.3× the industry forecast."
read 10 min →
2015Oct

RankBrain · ML signal integration ML

First confirmed machine-learning ranking signal at Google. Tail queries get a different relevance model. Practitioners learn what "embedding" means.

MLembeddingstail
Affects15% of daily queries (Google's own number).
read 12 min →
2018Aug

Medic update · YMYL as a structural concept

Sites in health, finance, legal categories get rebaselined. E-A-T becomes a hard ranking constraint, not a soft guideline.

YMYLE-A-Thealth
Algoholic case18 Israeli health sites, six-month recovery data.
read 15 min →
Era III · 2018–2023

The transformer years.

BERT, MUM, helpful-content. Four years where Google's underlying language model swallowed the surface-level rules. Practitioners who measured kept their leverage; those who chased keywords lost it.

2019Oct

BERT integration · query understanding in production transformer

First major transformer in production. Prepositions suddenly mattered. Conversational queries shifted by 38%. The Hummingbird thesis, six years on, fully realised.

BERTNLPlong-tail
Affects10% of all English queries at launch; ~30% within a year.Algoholic fileField measurement across 12 client sites.
read 12 min →
2020May

May 2020 core update · the volatility benchmark

The most volatile core update on record. We use it as the canonical reference for what algorithmic noise looks like under load.

core updatevolatility
SEL featureBarry Schwartz vlog #67, May 18, 2020.
read 9 min →
2021May

MUM · multi-task, multi-modal, multi-lingual transformer

Officially announced, partially deployed. The first signal that retrieval would not stay text-only. Foreshadows the 2024 generative shift.

multi-modalcross-lingual
Mental modelSearch becomes a model, not an index.
read 18 min →
2022Aug

Helpful Content System · the sitewide classifier flagship

Sitewide downranking with a multiplicative effect. Resamples on a 60–90 day cadence. The most consequential algorithm of the decade for practitioners.

HCSsite-levelclassifier
Algoholic case12 sites, classifier-resample recovery curve, n=12.Resample60–90 day cadence (measured).
read 11 min →
2022Sep

SpamBrain refresh · entity-aware ML

Spam classifier moves entity-level. Co-occurrence patterns become the signal. PBNs die quietly. Pattern detection scales beyond per-link analysis.

SpamBrainentityco-occurrence
AffectsOld-school link networks; manipulated graphs.
read 9 min →
Era IV · 2023–present

Generative retrieval.

The substrate shifts entirely. Ranking becomes retrieval. Retrieval becomes generation. The unit of competition moves from the page to the claim. Algoholic flagship launches into this transition.

2023May

SGE / AI Overviews announced generative

First Google I/O confirmation of generative search. The framing as "experimental" turns out to mask a deep architectural rewrite.

SGERAGsubstrate shift
Algoholic position"This is not SEO with prompts." (Vol. III · 02)
read 14 min →
2024May

AI Overviews · default rollout flagship

Generative summaries default-on for US users. The first time a Google product surfaces a claim, not a page, as the user-facing artifact.

AI Overviewsgenerativecitation
Algoholic case14 frontier models tracked, n=3,200 documents (Q1 2026).Survival rate52% research / 12% commercial @ d30.
read 17 min →
2024Nov

AI Overviews citation classifier · structural shift

Statement-level retrieval scored against an internal "trustworthy summary" head, not against page authority. The decoupling becomes irreversible.

classifierstatement-level
Mental modelPages become source material. Claims become artifact.
read 14 min →
2026May

The GEO framework · statement-level visibility flagship

Twenty-six years of practice meets the first measurement framework that actually models the substrate. Algoholic Vol. III publishes.

GEOframeworkalgoholic
Cite asSasson, G. (2026). Vol. III · 04.DataCSV · n=3,200 · open.
essay 04 →