GLOSSARY
Search Marketing FAQ
Concise answers to the most common questions relevant to SEO, GEO, CRO, and PPC. Filter by discipline, platform, and topic. Cortex references its corpus of platform-published best practices to draft each answer, with citations linking back to the source documents.
Showing 1-24 of 1947 questions
Why does SEO matter for my business?SEO+
SEO puts your business in front of people actively searching for what you sell.1 Unlike paid ads, organic traffic compounds over time and does not stop when you pause spending. Businesses that rank on page one capture the majority of clicks, trust, and downstream revenue.2
Citations · 2
in SEO Fundamentals
How long does it take to see results from SEO?SEO+
Most sites begin seeing measurable ranking movement within three to six months, with significant traffic growth appearing between six and twelve months. Timeline depends on your site's existing authority, competition level, content quality, and technical health. SEO is a compounding channel - early gains accelerate future results.
in SEO Fundamentals
How much does SEO cost?SEO+
SEO costs vary widely. Freelancers range from $500 to $3,000 per month, agencies from $1,500 to $10,000 or more, and enterprise programs can exceed $25,000 monthly. Cost depends on scope, competition, and the agency's deliverables. Cheap SEO often produces cheap results or outright damage.
in SEO Fundamentals
What is the difference between SEO and SEM?SEO+
SEO focuses exclusively on earning organic search visibility through content, technical optimization, and authority building. SEM - search engine marketing - is the broader category that includes both SEO and paid search advertising. In common usage, most people use SEM to mean paid search specifically.
in SEO Fundamentals
What is the difference between SEO and PPC?SEO+
SEO earns organic rankings through optimization and takes months to produce results, but those results compound over time. PPC buys visibility through paid ads and delivers traffic immediately, but stops the moment you stop paying. Most effective strategies use both channels together strategically.
in SEO Fundamentals
What is organic traffic and why is it valuable?SEO+
Organic traffic is visitors who reach your site by clicking unpaid search results. It is valuable because it represents high-intent users actively searching for your product or information, costs nothing per click, compounds as rankings improve, and typically converts at a higher rate than most paid channels.
in SEO Fundamentals
How do search engines decide which pages to rank?SEOLink BuildingPage Speed / Core Web Vitals+
Search engines use automated crawlers to discover pages, then index their content. Ranking algorithms evaluate hundreds of signals - including relevance, content quality, backlink authority, user experience, and page speed - to determine which pages best satisfy a given query's intent and deserve prominent placement.
in SEO Fundamentals
What are the most important Google ranking factors?SEOGoogleKeyword ResearchLink BuildingPage Speed / Core Web VitalsAccessibility+
The most impactful ranking factors are content relevance and quality, backlink authority from trusted domains, search intent alignment, page experience signals including Core Web Vitals, and technical accessibility for crawlers. Google uses hundreds of factors, but these five categories consistently drive the largest ranking differences.
in SEO Fundamentals
What is a search engine algorithm?SEOIndexing+
A search engine algorithm is the set of rules and machine learning models a search engine uses to evaluate, score, and rank indexed pages for a given query. Google's algorithm considers hundreds of weighted signals and is updated thousands of times per year to improve result quality.
in SEO Fundamentals
How often does Google update its algorithm?SEOGoogleAlgorithm Updates+
Google makes thousands of small algorithm changes every year, most of which go unannounced. Several times per year, Google releases named core updates, spam updates, and system-specific updates that produce noticeable ranking shifts. Monitoring industry trackers and Google's own blog is essential for staying informed.
in SEO Fundamentals
Is SEO still worth it in 2025?SEOGEOAI Overviews & Citations+
Absolutely. Organic search remains the single largest source of website traffic across nearly every industry. While AI overviews and zero-click results are reshaping the landscape, businesses that invest in high-quality content, strong technical foundations, and emerging channels like GEO are capturing more visibility than ever.
in SEO Fundamentals
Can I do SEO myself or do I need to hire someone?SEOGoogleLink BuildingStructured Data / SchemaLocal SearchOn-Page OptimizationCompetitor Analysis+
You can handle basic SEO yourself - writing quality content, optimizing title tags, and managing Google Business Profile. But technical audits, link building strategy, structured data implementation, and competitive analysis require specialized expertise. Most businesses benefit from professional help once they move beyond foundational optimizations.
in SEO Fundamentals
What is the difference between on-page SEO and off-page SEO?SEOLink BuildingStructured Data / SchemaInternal LinkingOn-Page OptimizationBrand Building+
On-page SEO covers everything you control directly on your website - content, title tags, meta descriptions, internal links, header structure, and schema markup. Off-page SEO involves external signals you influence indirectly, primarily backlinks from other websites, brand mentions, social proof, and digital PR efforts.
in SEO Fundamentals
What is technical SEO?SEOStructured Data / SchemaCrawl EfficiencyInternal LinkingSitemapsRobots.txt+
Technical SEO is the optimization of your website's infrastructure so search engines can efficiently crawl, render, index, and rank your pages. It covers site speed, mobile-friendliness, crawl budget management, structured data, SSL, XML sitemaps, robots.txt configuration, JavaScript rendering, and resolving errors like broken redirects or orphan pages.
in SEO Fundamentals
What is white hat SEO vs. black hat SEO?SEOLink BuildingPenalties & Recovery+
White hat SEO follows search engine guidelines - creating quality content, earning legitimate backlinks, and optimizing technical infrastructure. Black hat SEO uses manipulative tactics like link schemes, cloaking, keyword stuffing, and hidden text to exploit algorithm weaknesses. Black hat carries severe penalty risk and is never sustainable.
in SEO Fundamentals
How does Google crawl and index my website?SEOGoogleIndexingCrawl EfficiencySitemaps+
Googlebot discovers your pages by following links and reading your XML sitemap. It fetches and renders each page, then stores the processed content in Google's index. Only indexed pages can appear in search results. Crawl frequency depends on your site's authority, freshness signals, and crawl budget.
in SEO Fundamentals
What does it mean when a page is indexed?SEOGoogleAnalytics & TrackingIndexing+
An indexed page has been crawled, rendered, and stored in Google's database. Indexing means Google is aware the page exists and has evaluated its content. Only indexed pages are eligible to appear in search results. You can check indexing status using the URL Inspection tool in Search Console.
in SEO Fundamentals
Why is my website not showing up on Google?SEOGoogleAnalytics & TrackingIndexingCrawl EfficiencyInternal LinkingCanonical TagsRobots.txt+
Common causes include the site being too new, pages blocked by robots.txt or noindex tags, poor internal linking creating orphan pages, manual penalties, thin or duplicate content, indexing delays, or technical crawl errors. Use Google Search Console's Coverage and URL Inspection reports to diagnose the specific issue.
in SEO Fundamentals
How do I check if my site is indexed by Google?SEOGoogleAnalytics & TrackingIndexing+
Search "site:yourdomain.com" in Google to see which pages are indexed. For precise data, use Google Search Console's Pages report under Indexing, which shows indexed pages, excluded pages, and the specific reason each page was excluded. The URL Inspection tool checks individual URLs in real time.
in SEO Fundamentals
What is a SERP and what are the different SERP features?SEOGEOGoogleAI Overviews & CitationsLocal SearchAd CreativeSERP Features+
A SERP - search engine results page - is the page Google displays after a query. Beyond traditional blue links, SERP features include featured snippets, People Also Ask, local packs, image packs, video carousels, knowledge panels, AI Overviews, shopping results, sitelinks, and top stories.
in SEO Fundamentals
What is search engine market share and does it matter for SEO strategy?SEOGEOGoogleBingChatGPTPerplexityGeminiAI Overviews & Citations+
Google holds roughly 90% of global search market share, making it the primary optimization target. However, Bing powers ChatGPT search, and AI platforms like Perplexity and Gemini are growing rapidly. A modern strategy should prioritize Google while accounting for emerging AI-driven search surfaces.
in SEO Fundamentals
What is domain authority and how is it calculated?SEOGoogleLink Building+
Domain Authority is a third-party metric created by Moz that predicts how likely a domain is to rank. It is scored 1 to 100 based primarily on backlink quantity and quality. Ahrefs uses a similar metric called Domain Rating. Neither is a Google ranking factor - they are directional estimates.
in SEO Fundamentals
Does social media activity affect SEO rankings?SEOGoogleLink BuildingBrand Building+
Social media does not directly influence Google rankings - social links are not treated as traditional backlinks. However, social media indirectly supports SEO by amplifying content distribution, driving referral traffic, increasing brand searches, and creating opportunities for others to discover and link to your content organically.
in SEO Fundamentals
What is the difference between organic results and paid results?SEOGoogle+
Organic results are unpaid listings earned through SEO - ranked by Google's algorithm based on relevance, authority, and quality. Paid results are advertisements purchased through Google Ads, displayed above or below organic listings and labeled "Sponsored." Organic rankings compound over time; paid visibility ends when budget stops.
in SEO Fundamentals