Glossary: GEO, SEO, Bitcoin & Fintech

A 301 redirect is a permanent server redirect telling search engines a URL has moved for good.

A 302 redirect is a temporary redirect signalling to search engines that the current URL relocation is not permanent.

3D Secure is a security protocol for online card payments where the cardholder performs an extra authentication step (SMS, biometrics, app) to prevent fraud.

A 51% attack is a scenario where one party holds the majority of network hashrate and could theoretically reverse transactions or censor blocks.

Agentic AI is the broad term for AI systems that act autonomously, plan and make decisions in complex multi-step environments.

An AI agent is a software system around a language model that autonomously performs tasks, uses tools, and iterates decisions toward a goal.

An AI citation is a source reference an AI search engine attaches to its answer, typically as a clickable link to the web page the information came from.

AI Overview is Google's AI-generated answer block that appears above search results, summarising information from multiple sources.

Alt text (alternative text) is the description attached to an image, crucial for accessibility and for how search engines understand the image.

AML is the framework of rules and processes preventing money laundering and terrorism financing via customer identification, transaction monitoring and reporting.

Anchor text is the visible, clickable text of a hyperlink — a strong ranking signal about the topic of the destination URL.

AEO is optimisation for search engines that return direct answers instead of links, aiming to appear as a source in the summarising answer.

An ASIC is a chip designed for one specific task — in Bitcoin: computing SHA-256 hashes for mining.

A backlink is an incoming link from another website to yours — one of the strongest signals of authority and trust in search engines.

Banking-as-a-Service is infrastructure letting non-bank companies offer banking features (accounts, cards, payments) to their users via APIs.

Bech32 is the modern encoding format for Bitcoin addresses (SegWit and Taproot), designed for error detection and readability.

BERT (Bidirectional Encoder Representations from Transformers) is Google's 2019 NLP model that understands query context and nuance by analysing words bidirectionally.

Bitcoin is the world's first decentralised digital currency, launched in 2009 by an anonymous developer under the pseudonym Satoshi Nakamoto.

A Bitcoin address is a 26-62 character string acting as destination for a Bitcoin transaction, derived from a public key or script.

Bitcoin maximalism is the belief that Bitcoin is the only crypto project with a long-term future and that all other 'altcoins' trend to zero in value.

Black-hat SEO refers to techniques violating Google guidelines and chasing short-term ranking gains at the cost of long-term sustainability.

A block is a bundle of verified Bitcoin transactions cryptographically chained to the previous block, forming the blockchain.

The block reward is the sum of newly issued BTC plus all transaction fees a miner receives for finding a valid block.

A blockchain is a decentralised ledger where transactions are stored in chronological, cryptographically linked blocks — the underlying structure of Bitcoin.

BNPL is a payment method where consumers receive purchases immediately but pay in later instalments, without a traditional credit card.

Bounce rate is the percentage of visitors leaving your site after viewing only one page, without any other interaction.

BRC-20 is an experimental token standard on Bitcoin using Ordinals inscriptions to create fungible tokens, analogous to ERC-20 on Ethereum.

Breadcrumbs are a navigation trail showing the current page's hierarchical position within the site, also displayed as a navigation element in the SERP via structured data.

Broken link building is the technique of finding broken links on other sites and proposing the owner replace them with a link to your relevant content.

A canonical tag is an HTML element that tells search engines which URL is preferred when the same content is reachable at multiple addresses.

A CBDC is a digital version of fiat money issued and backed by a central bank — legally tender, operationally digital and non-anonymous.

Chain of Thought is a prompting technique that has the LLM reason step by step before giving the final answer, dramatically improving accuracy on complex tasks.

A chargeback is a mandatory reversal by the card issuer to the merchant, usually after a dispute or fraudulent transaction by the cardholder.

ChatGPT is OpenAI's conversational AI assistant, one of the largest AI search channels worldwide and a primary GEO target.

CPFP is a Bitcoin technique where a high-fee follow-up transaction (child) is created that speeds confirmation of a low-fee parent transaction, because miners bundle both.

Claude is Anthropic's family of AI assistants known for long context windows, nuanced reasoning and strong enterprise adoption.

ClaudeBot is Anthropic's web crawler collecting public content for training and powering Claude's search and research capabilities.

CTR is the percentage of users who click your search result compared to how often it was shown.

The coinbase transaction is the first transaction in every Bitcoin block, creating new BTC out of thin air as the miner's reward.

CoinJoin is a Bitcoin privacy technique where multiple users combine their transactions to break UTXO linkability for outside observers.

Cold storage is keeping Bitcoin private keys offline on devices never connected to the internet, for maximum theft protection.

A CDN is a globally distributed network of edge servers that caches content close to the end user, dramatically reducing load times.

Content gap analysis is identifying topics competitors rank for that you don't, usually as basis for prioritising new content.

Content pruning is systematically removing, consolidating or improving low-performing content to raise overall perceived quality of your site.

The context window is the maximum amount of text (tokens) an LLM can process at once — its 'memory' size for one interaction.

Core Web Vitals are Google's core performance metrics: loading (LCP), interactivity (INP) and visual stability (CLS).

Crawl budget is how many URLs Googlebot wants and is able to crawl on your site within a given period, depending on server capacity and URL value.

CLS measures how much a page's visual layout unexpectedly shifts during load — a score safeguarding visual stability.

A custodial wallet is a wallet where a third party (usually an exchange) manages the private keys on behalf of the user.

The difficulty adjustment is the automatic recalibration of mining difficulty every 2,016 blocks, keeping the 10-minute block interval stable regardless of network hashrate.

Google's Disavow tool lets you instruct search engines to ignore certain incoming links, useful in cases of link spam or penalties.

A dofollow link is the standard hyperlink without rel attributes that passes full PageRank and authority to the destination URL.

DCA is an investment strategy where you buy a fixed amount of BTC at regular intervals regardless of price, spreading timing risk.

Domain authority (DA) is a score from 1-100 estimating a domain's overall ranking power, developed by Moz and widely used in link analysis.

DORA is the EU regulation (in force since 17 January 2025) requiring financial institutions to maintain robust IT risk management, incident reporting and strict oversight of critical third parties such as cloud providers.

A double-spend is the attempt to spend the same bitcoins twice — the core problem Bitcoin first solved for digital money without a central authority.

Duplicate content is identical or near-identical text reachable at multiple URLs, making it hard for search engines to determine which version to rank.

Dwell time is the time a user spends on a page before returning to search results, a signal of content satisfaction.

E-commerce SEO is applying SEO principles to webshops, focusing on category pages, product pages, schema markup and faceted navigation.

E-E-A-T stands for Experience, Expertise, Authoritativeness and Trustworthiness — the four quality criteria Google (and now AI engines) use to evaluate pages.

Embedded finance is integrating financial services (payments, lending, insurance) into non-financial products via APIs.

An embedding is a numerical vector representation of text, image or other data, letting AI systems compute semantic similarity.

Evergreen content is content remaining relevant for years without major updates, like definitions, how-it-works explainers and timeless guides.

Faceted navigation is filter systems (color, size, price) in shops and directories using URL parameters — often an SEO problem due to duplicate content.

A featured snippet is a highlighted answer block in Google that appears above the organic results, giving a direct summary pulled from a web page.

Few-shot learning is the technique of providing an LLM a few examples in the prompt (in-context learning) to teach it the desired style, format or reasoning for new input.

Fine-tuning is adapting a pre-trained LLM with domain-specific data to perform better on niche tasks or match a style.

Fintech (Financial Technology) is the sector where technology delivers financial services — from payment apps to neobanks, crypto exchanges and embedded finance.

FCP measures the moment the browser first renders text, image or another visible content element — the first signal that the page is alive.

A foundation model is a large-scale AI model trained on broad, diverse data and then adapted to a wide range of specific tasks — the backbone of modern generative AI.

A full node is a Bitcoin client that downloads the entire blockchain, independently verifies all consensus rules and doesn't have to trust any third party.

Function calling is the mechanism by which an LLM decides to invoke an external function or API with structured parameters, rather than generating only text.

Gemini is Google's family of multimodal foundation models, introduced December 2023, natively handling text, images, audio and video.

Generative AI is the umbrella term for AI systems that create new content — text, image, audio, video or code — based on trained models rather than retrieving existing information.

GEO is the discipline of making content visible and citeable in generative AI search engines like ChatGPT, Perplexity, Claude and Google AI Overview.

The genesis block is the very first block in a blockchain — for Bitcoin mined by Satoshi Nakamoto on 3 January 2009, with the famous bank-bailout headline embedded inside.

Google AI Mode is a fully conversational search interface from Google where users have a dialogue with an AI instead of clicking links.

Google Analytics 4 is Google's event-based analytics platform for website and app traffic, successor to Universal Analytics since July 2023.

Google Business Profile (formerly Google My Business) is Google's free platform for local businesses to manage their Search and Maps presence.

Google Search Console is Google's free tool for site owners to monitor search performance, including indexing, CTR and technical issues.

Google Tag Manager is a free tag management system that centrally installs marketing and analytics tags (GA4, Ads, Meta Pixel, schema) without code changes on the site.

GPTBot is OpenAI's web crawler, used to collect public web content for training future GPT models and for SearchGPT.

Grounding is the technique where an AI model anchors its answer in verifiable external sources, so facts are checkable and hallucinations are prevented.

Guardrails are the safety measures around an LLM — input filters, output validation and monitoring — that prevent the model from producing harmful, inaccurate or unintended output.

The H1 is the primary heading of an HTML page and the strongest semantic signal about the page topic.

Halvening is an informal variant of 'halving' — the four-yearly halving of the Bitcoin block reward.

The halving is the programmed event where the Bitcoin block reward is halved every 210,000 blocks, roughly every four years.

A hard fork is a non-backwards-compatible protocol change where new rules invalidate old, forcing all nodes to upgrade or stay on a split chain.

A hardware wallet is a physical device (USB-stick-like) that generates and stores private keys offline, with an air-gapped signing process.

Hashrate is the total computing power contributed to the Bitcoin network, expressed in hashes per second — a measure of network security.

A Hierarchical Deterministic (HD) wallet deterministically generates all addresses and private keys from one seed, as specified in BIP32.

The Helpful Content Update is Google's algorithm change since 2022 that sitewide rewards or penalises based on whether content is human-first and genuinely useful.

HODL is an informal strategy and cultural expression for long-term Bitcoin holding, originally a typo of 'hold' in a 2013 forum post.

A hot wallet is a Bitcoin wallet actively connected to the internet that can send transactions immediately — suitable for daily spending, not large amounts.

Hreflang is an HTML attribute telling search engines which language variants of a page exist and which audience each variant targets.

HSTS (HTTP Strict Transport Security) is a browser policy enforcing that all connections to a site happen over HTTPS.

An HTTP status code is a three-digit code the server returns with every response, signalling whether the request succeeded, redirected or errored.

IBAN (International Bank Account Number) is the internationally standardised format for bank account numbers, mandatory within SEPA.

iDEAL is the dominant Dutch online payment method letting consumers authorise e-commerce payments directly via internet banking.

An impression counts every time your URL appears in search results, regardless of whether the user clicks.

Indexing is the process by which search engines include crawled pages in their searchable database, qualifying them to appear in results.

Inscriptions are pieces of arbitrary data (text, image, video) stored permanently on the Bitcoin blockchain via the Ordinals protocol.

INP measures how quickly a page visually responds to user interactions like clicks, taps and keyboard input — the successor to FID since 2024.

Internal links are links between pages on the same domain, a lever for crawlability, authority distribution and thematic context.

International SEO is the discipline of making websites visible in multiple countries or languages, with attention to hreflang, regional targeting and local content.

A jailbreak is a prompting technique that persuades an LLM to ignore its safety training and produce content it would normally refuse.

JavaScript SEO is the specialism of ensuring client-side rendered pages (SPAs, React, Vue) are correctly crawled and indexed by search engines.

JSON-LD is Google's recommended format for adding structured data to a page, via a JSON object inside a <script> tag.

Keyword cannibalization occurs when multiple pages on the same site compete for the same search term, weakening each other's ranking.

Keyword difficulty (KD) is a 0–100 score estimating how hard it is for a new page to rank on Google's first page for a search term.

Keyword research is systematically mapping search terms your audience uses, including volume, intent and competition, as basis for SEO strategy.

A knowledge graph is a structured network of entities and relationships that search engines and AI engines use to understand the world.

KYC is the process where financial service providers verify customer identity, legally required to prevent money laundering and terrorism financing.

A Large Language Model is an AI model that understands and generates natural language based on statistical patterns learned from billions of text documents.

LCP measures how long it takes for the largest visible element on a page to load — the primary measure of perceived loading speed.

Lazy loading is the technique where images, iframes or scripts only load once they're about to appear in the viewport, speeding up initial page load.

Lightning Network is a Layer-2 protocol atop Bitcoin enabling instant, near-free payments via a network of bidirectional payment channels.

Liquid Network is a federated sidechain on Bitcoin, developed by Blockstream, offering fast (2-minute finality) and confidential transactions for exchanges, traders and digital asset issuers.

An LLM hallucination is when a language model confidently generates factually incorrect information as if it were true.

LLMO is the discipline of optimising content and technical configuration so that LLMs (ChatGPT, Claude, Gemini, Perplexity) use and cite your brand and information in their answers.

llms.txt is a conventional file in a website's root that gives AI engines a structured overview of which content is relevant to read.

Local SEO is optimising online presence for location-bound queries, crucial for businesses with physical locations or service areas.

Log file analysis is the study of server access logs to see how search engine crawlers actually navigate a site — which pages, how often, and with which status codes.

A long-tail keyword is a specific search phrase (typically 3+ words) with low search volume but much higher conversion potential and less competition.

The mempool is the waiting room for Bitcoin transactions: all pending transactions awaiting inclusion in a block.

A Merkle tree is a hierarchical hash structure where each leaf is a data hash and each parent is the hash of its children, allowing a large dataset's integrity to be verified with a single root hash.

The meta description is the short descriptive text under the meta title in search results, intended to entice the click.

The meta title is the clickable title of a web page in search results and browser tabs, usually set via the HTML title tag.

MiCA (Markets in Crypto-Assets) is the EU regulation fully in force since 2024-2025 imposing uniform rules on crypto service providers.

Microsoft Copilot is Microsoft's AI assistant product line, built on OpenAI models and Microsoft's own models, integrated into Windows, Microsoft 365, Bing and Edge.

Mining is the process where specialised computers consume energy to find new Bitcoin blocks, verify transactions, and secure the network.

A mining pool is a group of miners combining their hashrate and distributing block rewards proportionally to stabilise income.

Miniscript is a structured representation of Bitcoin Script that makes complex spending conditions readable, analysable and safe to compose.

Mobile-first indexing is Google's system where the mobile version of your site is the primary source for indexing and ranking, standard since 2021.

MCP is an open standard from Anthropic (2024) letting AI agents uniformly use external tools, databases and services.

Multimodal AI can process and generate text, images, audio and video together, unlike systems mastering only one modality.

Multisig (multisignature) requires multiple private keys to sign a transaction, typically used for enterprise custody, family vaults, or extra security.

MUM is Google's 2021 multimodal AI model that processes text, images and 75 languages simultaneously and understands complex multi-step queries.

NAP stands for Name, Address, Phone — business info that must appear consistently on external sites (directories, review platforms) for local SEO.

A neobank is a fully digital bank without physical branches, usually built on modern cloud infrastructure with strong app-centric UX.

The nofollow attribute on a link tells search engines not to pass trust or authority signals to the destination URL.

A noindex directive tells search engines not to include a page in the index, even though it still gets crawled.

A nonce is a 32-bit number in the Bitcoin block header that miners vary to find the right hash during mining.

Off-page SEO covers all optimisation activities outside your own site: link building, brand mentions, PR, social signals and reputation.

On-page SEO covers all optimisations within the HTML of individual pages: titles, headings, content quality, internal links, media and schema.

Open banking is the concept where banks, mandated by regulation like PSD2, open customer data and payment functions to third parties via standardised APIs.

Open Graph is a Facebook-introduced protocol using meta tags to control how a URL is presented when shared on social platforms.

Ordinals is a protocol from January 2023 that uniquely identifies individual satoshis and allows content (text, image, video) to be inscribed on them.

An orphan page is a web page with no internal links from other pages on the domain, making it hard or impossible for crawlers to find.

PageRank is Google's original 1998 algorithm that calculates a page's authority by analysing the quantity and quality of inbound links.

Pagespeed is the load speed of a web page, directly tied to user experience, conversion and ranking through Core Web Vitals.

Pagination is splitting long lists (search results, category pages, archives) across multiple URLs with navigation between them.

PayJoin is a privacy technique where both sender and receiver contribute inputs to one transaction, breaking chain-analysis heuristics.

A payment channel is a 2-party Bitcoin construct via multisig enabling direct, off-chain transactions without involving the blockchain.

A payment gateway is the technical layer that passes payment information between a webshop, the customer's bank and the merchant's bank.

People Also Ask is a Google SERP feature displaying related follow-up questions in expandable form, often powered by content from ranking pages.

Perplexity is an AI search engine that actively searches the web on every query and delivers answers with clear source citations.

PerplexityBot is the Perplexity AI crawler that indexes content for real-time use in Perplexity's answers, including source citations.

A pillar page is a comprehensive main page that fully introduces a broad topic and links to multiple detailed cluster pages.

A private key is a secret number that lets you sign transactions and spend the corresponding Bitcoin — whoever owns the key owns the bitcoin.

Prompt engineering is the craft of formulating instructions to an AI model so it consistently produces the desired output.

Prompt injection is an attack technique where a malicious user or external data source injects instructions into an LLM that override or bypass the original system prompt.

Proof of Work (PoW) is Bitcoin's consensus mechanism: miners prove they spent energy by solving a cryptographic puzzle.

PSD2 (Payment Services Directive 2) is the 2018 EU directive requiring banks to open their payment data via APIs to authorised third parties.

PSD3 (Payment Services Directive 3) is the EU successor to PSD2, rolled out from 2025-2026, tightening open-banking rules and extending them to crypto services.

A public key is a cryptographic key derived from the private key, used to verify transactions and generate Bitcoin addresses.

RankBrain is Google's 2015 machine-learning algorithm that interprets unfamiliar and ambiguous queries by recognising semantic patterns.

RegTech is the fintech sub-sector specifically providing technology for regulation compliance, reporting and risk management in financial institutions.

Render-blocking resources are CSS or JS files holding up page rendering until fully downloaded and processed.

Replace-By-Fee is a Bitcoin protocol feature that replaces an unconfirmed transaction with a new version carrying a higher fee, so it confirms faster.

RAG is a technique where an AI model actively retrieves external sources at answer time so responses are accurate and verifiable.

Rich results are enhanced search results with extra visual elements like stars, prices, FAQ accordions or recipes — powered by structured data.

RLHF (Reinforcement Learning from Human Feedback) is the training method that fine-tunes LLMs after pre-training using human raters who compare and rank outputs.

A robots.txt file in a website's root tells crawlers which URLs they may or may not crawl.

Runes is a fungible token standard on Bitcoin launched by Casey Rodarmor at the April 2024 halving as an efficient alternative to BRC-20.

A satoshi (sat) is the smallest divisible unit of Bitcoin: 1 BTC = 100,000,000 satoshis.

Sats per vbyte is the unit for Bitcoin transaction fees: how many satoshis you pay per virtual byte of block space.

Schema markup is structured data (typically JSON-LD) that tells search engines and AI engines explicitly what a page is about.

Schnorr signatures are a digital signature scheme added to Bitcoin via the Taproot upgrade (2021), making multisig transactions more compact, efficient and private.

Search intent is the goal behind a search query — informational, navigational, commercial or transactional — determining what type of content Google shows.

Search volume is the estimated number of times per month a specific query is entered into a search engine, usually expressed as a 12-month average.

SearchGPT is OpenAI's AI-powered search product, integrated into ChatGPT, that combines real-time web results with LLM answers including source citations.

A seed phrase is a sequence of 12, 18 or 24 English words forming a master seed from which all private keys of an HD wallet are derived.

Segregated Witness (SegWit) is a Bitcoin upgrade from August 2017 that separated signature data from transaction hashes, enabling lower fees and solving malleability.

Self-custody is managing your Bitcoin private keys yourself without an intermediary — Bitcoin's original peer-to-peer money vision.

Semantic SEO is the practice of optimising around concepts and entities rather than individual keywords, so search engines and AI engines understand the full meaning of a page.

SEPA (Single Euro Payments Area) is the EU standard framework for euro transfers, where cross-border payments are treated as domestic.

SEPA Instant (SCT Inst) is the real-time payment scheme within the eurozone settling transfers up to 100,000 euro within 10 seconds, 24/7/365.

SERP stands for Search Engine Results Page — the page a search engine shows in response to a query.

Sitelinks are extra internal links Google shows under your main result for branded queries, typical for large brands or strong sites.

A sitemap.xml is an XML file giving search engines a complete list of indexable URLs on a site, with metadata about freshness and priority.

A soft 404 is a page returning HTTP 200 but functioning as a 404 error page, confusing Google about the real status.

A soft fork is a backwards-compatible update to Bitcoin's consensus rules, where new rules are stricter than old ones, letting non-upgraded nodes continue following the chain.

SSL/TLS is the encryption between browser and server enabling HTTPS — a light ranking factor since 2014 and an absolute must today.

A stablecoin is a cryptocurrency whose value is pegged to a reference (usually USD or EUR) to eliminate price volatility without giving up blockchain's technological advantages.

A stealth address is a public key that anyone can pay via one-time, untraceable addresses, without outside observers seeing the links.

SCA is the PSD2-mandated two-factor authentication for electronic payments in the EU, based on at least two of three factors: knowledge, possession and inherence.

A submarine swap is an atomic exchange between on-chain Bitcoin and Lightning without intermediaries, enabling direct movement from one to the other.

SWIFT is the global messaging network banks use to send international payment instructions — not a money-moving system itself, but the infrastructure that standardises bank-to-bank communication.

A system prompt is the initial, hidden instruction that defines the behaviour, persona and constraints of an LLM before the user asks anything.

Taproot is a Bitcoin protocol upgrade from November 2021 that introduced Schnorr signatures, MAST scripts and privacy benefits.

Technical SEO covers all SEO aspects on the server, code or infrastructure side, independent of content and links.

Temperature is a sampling parameter between 0 and 2 controlling how randomly an LLM selects its next token — low = deterministic, high = creative.

Thin content is pages with little or little valuable substance, which Google judges insufficient to keep in the search index.

TTFB measures the time between an HTTP request and the first byte returning from the server — the primary indicator of server-side performance.

A token is the base unit an LLM processes text in — typically a sub-word fragment, roughly 4 characters or 0.75 words in English.

A topic cluster is a group of interlinked pages around one central topic, usually one pillar page plus multiple supporting articles.

Topical authority is a domain's perceived expertise within a specific topic cluster, built through complete, well-linked content architecture.

Training data is the collection of texts, images or other examples an AI model learns patterns from before deployment.

A Bitcoin transaction fee is the voluntary payment to the miner for including your transaction in a block, usually expressed in sats per vbyte.

The Transformer is the neural network architecture underlying nearly all modern language models since 2017 — GPT, Claude, Gemini and Llama.

A URL slug is the final, human-readable part of a URL after the last slash that identifies the page and can include keywords.

UTXO stands for Unspent Transaction Output — Bitcoin's 'coins': unspent outputs from earlier transactions available to be spent.

A vector database is a specialised database that efficiently stores vector embeddings and allows similarity search, essential for RAG systems.

White-hat SEO refers to optimisation techniques fully compliant with Google guidelines and delivering durable long-term ranking growth.

x-default is a special hreflang value indicating which page Google should show when no other language variant fits the searcher.

A zero-click search is a query where the user gets their answer directly on the results page without clicking through to a website.

Zero-shot learning is an LLM's ability to perform a task correctly without a single example in the prompt — entirely from pre-training.