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 1825-1848 of 1947 questions
What links should be included in a disavow file?SEOInternal LinkingPenalties & Recovery+
Five categories typically warrant disavow. Confirmed manual action mentioned in GSC. Link farms or PBN networks. Massive exact-match anchor concentrations from spammy sources. Foreign-language sites linking with no business reason. Sitewide footer links from low-quality domains. Don't disavow: any link with potential value, sites with editorial content, sites whose only sin is low DR but otherwise legitimate.
in Backlink Analysis & Disavow
Should you disavow every toxic link?SEOGooglePenalties & Recovery+
No. Google increasingly ignores spam links automatically (Penguin algorithm absorbs much of this). Disavow only when: confirmed manual action exists, or clear pattern of manipulation that hasn't yet caused issues but might. Most sites should leave 'toxic' links alone unless they've caused actual ranking problems. Over-aggressive disavow can hurt by removing borderline-positive links. Be conservative.
in Backlink Analysis & Disavow
What anchor text issues should you look for in backlink analysis?SEOLink Building+
Five issues. Over-concentration on exact-match keyword anchors (over 5-10% of profile = warning). Identical anchor text from multiple unrelated sites (pattern signal). Foreign language anchors when your site is English. Commercial-intent anchors from non-commercial pages (mismatch). Same anchor + same page = manual link building tells. Audit anchor distribution quarterly; correct over-optimization.
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How do you assess topical relevance in backlinks?SEOLink BuildingSERP Features+
Three signals. Linking site's primary topic (does it cover your niche?). Linking page's content (is the surrounding context relevant?). Site's link neighborhood (what else do they link to?). High-relevance links: SEO blog linking to your SEO article. Low-relevance: gambling site linking to your dental clinic. Off-topic links can be neutral or negative depending on broader profile. Topical relevance multiplies link value.
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What is the difference between referring domains and total backlinks?SEOLink Building+
Total backlinks: every individual link pointing to your site (multiple per domain possible). Referring domains: unique domains linking to your site (one count per domain regardless of multiple links). Referring domains is the more meaningful metric - 100 links from one domain is roughly equivalent to 10 links from 10 domains. Diversity matters more than volume.
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How do you detect unnatural spikes in link growth?SEOLink Building+
Three patterns. Sudden 10x+ increase in new referring domains over a short window. New links concentrated in specific anchor text. New links from similar-looking sites (same template/hosting/IP). Track new referring domain count weekly. Most natural link growth is gradual (5-50 new domains/month). Spikes warrant investigation - could be PR success (good) or negative SEO attack (bad) or competitor outreach attack.
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How do you know if backlinks are helping or hurting SEO?SEOLink BuildingAnalytics & TrackingAlgorithm UpdatesPenalties & Recovery+
Four correlations. Organic traffic growth correlating with new high-quality link acquisition (positive signal). Ranking improvements for target keywords following link campaigns. Manual action in GSC (clearly bad). Sudden ranking drops without algorithm updates (could be link-related). Combined indicators reveal whether your link profile is net positive or negative. Most natural profiles are net positive.
in Backlink Analysis & Disavow
What is a topic cluster?SEOSite Architecture+
A content architecture where a central 'pillar' page covers a broad topic comprehensively, and multiple 'cluster' pages dive deeper into specific subtopics. All cluster pages link to the pillar; pillar links out to clusters. Signals topical depth to search engines. Example: pillar 'Complete Guide to Email Marketing' + clusters on subject lines, deliverability, segmentation, automation. Modern SEO foundation.
in Topical Authority & Topic Clusters
How do pillar pages and topic clusters work together?SEOContent StrategySite ArchitectureInternal Linking+
Pillar = breadth (overview of entire topic, 3000-8000 words, links to all clusters). Clusters = depth (1500-3500 words per subtopic, link back to pillar). Internal linking creates a hub-and-spoke structure that signals topical authority. Pillar ranks for high-volume head terms; clusters rank for specific long-tails. The combination outperforms isolated articles for competitive topics.
in Topical Authority & Topic Clusters
Why is topical authority important for rankings?SEOGoogleContent Strategy+
Google rewards sites that demonstrate deep expertise on a topic over thin coverage. Topical authority = ranking signal for the whole topic, not just individual queries. A site with 50 articles on email marketing outranks a site with one good article and 50 unrelated articles. Topical depth compounds: each new piece reinforces the others. The modern alternative to scattered SEO.
in Topical Authority & Topic Clusters
How many pages do I need to build topical authority?SEOContent Strategy+
Minimum 10-15 pages for niche topics; 30-100+ for competitive topics. Quality over quantity. Each page must offer genuine depth (1500+ words minimum). Coverage breadth matters: address every meaningful subtopic. Building topical authority is a 6-18 month effort, not a quick win. Start with 3-5 pieces per quarter on a focused topic, build over time.
in Topical Authority & Topic Clusters
How do I choose a core topic or focus subject?SEOKeyword ResearchContent Strategy+
Five-criteria framework. Business relevance (does this topic drive your revenue?). Search volume (substantial demand for queries in this topic). Competitive opportunity (can you rank or is the SERP saturated?). Personal expertise (can your team write authoritatively?). Long-term value (will this topic matter in 3 years?). Topic choice determines whether topical authority work pays off.
in Topical Authority & Topic Clusters
How do I find related subtopics for a topic cluster?SEOGoogleKeyword ResearchSite ArchitectureSERP Features+
Five tactics. Google 'People Also Ask' for primary topic. Ahrefs Keywords Explorer (Related terms, Questions filter). Wikipedia table of contents for the topic. Competitor table-of-contents analysis. Reddit subreddits on the topic. Build a list of 30-100 subtopics; group by intent and depth. Prioritize subtopics with search volume and pillar relevance.
in Topical Authority & Topic Clusters
How do I map a topic cluster structure?SEOSite ArchitectureInternal Linking+
Three-step process. Map 1 pillar (broad, comprehensive topic page). Map 5-20 primary clusters (mid-level subtopics). Map 20-100+ secondary clusters (long-tail subtopics). Visualize as tree diagram. Internal linking: secondary → primary → pillar. Bidirectional links between primary clusters. Pillar links out to all primary clusters. This is the hub-and-spoke architecture that signals topical depth.
in Topical Authority & Topic Clusters
What is the best internal linking strategy for topic clusters?SEOLink BuildingSite ArchitectureInternal Linking+
Five rules. Pillar links out to all primary cluster pages with descriptive anchor text. Each cluster links back to pillar. Clusters link to related clusters (sibling links). Use natural anchor text matching cluster page focus. Don't over-link (1 link per 200 words). Internal linking is the structural signal that holds the cluster together for both users and search engines.
in Topical Authority & Topic Clusters
Should cluster pages link to each other?SEOA/B Testing & Experimentation+
Yes - related clusters should link. Cluster A on 'email subject lines' should link to Cluster B on 'email A/B testing' where contextually relevant. These sibling links demonstrate topical interconnection. Don't artificially link unrelated clusters. Don't link every cluster to every other cluster (unnatural pattern). Link based on user-relevant content connections.
in Topical Authority & Topic Clusters
What anchor text should I use for internal links?SEOLink BuildingInternal Linking+
Three-rule pattern. Descriptive anchor that matches target page focus ('guide to email deliverability' linking to deliverability page). Vary anchor text across multiple links (don't always use exact match). Include partial-match keywords when natural. Internal links allow more exact-match anchor than external (lower spam risk). Goal: descriptive enough that users + search engines understand the link's purpose.
in Topical Authority & Topic Clusters
How do I avoid keyword cannibalization in a topic cluster?SEOSite Architecture+
Five tactics. Each page targets a distinct primary keyword. Cluster pages must have unique focus (not overlapping). Pillar targets broad head term; clusters target specific long-tails. Audit existing content for overlap before publishing. Consolidate duplicate-intent pages if they exist. Cannibalization happens when 2+ pages compete for the same keyword - both lose ranking power.
in Topical Authority & Topic Clusters
What makes a pillar page effective?SEOContent StrategyStructured Data / Schema+
Six elements. Comprehensive coverage of the topic (3000-8000 words). Clear navigation/TOC for long-form readability. Links out to all primary cluster pages. Schema markup (Article + BreadcrumbList). Strong header structure (H1, H2, H3). Visual elements (diagrams, charts, examples). Updated regularly with fresh examples. Pillar pages are reference resources - they get linked to externally and serve as topical entry points.
in Topical Authority & Topic Clusters
What makes a cluster page effective?SEOStructured Data / Schema+
Six elements. Single subtopic focus (don't dilute). 1500-3500 words of depth. Link back to pillar in early paragraphs. Schema markup (Article). Practical examples, screenshots, code snippets. Unique angle not just generic info. Cluster pages succeed when they're the definitive resource on their narrow subtopic - the page someone bookmarks to come back to.
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How deep should each page cover its subtopic?SEOContent Strategy+
Standard: 1500-3500 words for cluster pages, 3000-8000 for pillar pages. Length isn't the goal - completeness is. Cover the subtopic thoroughly enough that user doesn't need another source. Audit top-ranking competitors for that subtopic; aim for equivalent or greater depth. Long pages without substance underperform short pages with substance. Match depth to user intent + competitive baseline.
in Topical Authority & Topic Clusters
What is semantic SEO?SEOStructured Data / Schema+
Optimizing for meaning + context rather than just exact keyword matches. Includes: covering related entities + concepts, using natural language variations, building topical depth around a concept space, leveraging structured data to clarify meaning. Google's algorithm (since 2013 Hummingbird, ongoing with MUM and BERT) increasingly understands semantic relationships - semantic SEO matches modern algorithm capabilities.
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How does semantic SEO support topical authority?SEOContent StrategySite Architecture+
Three mechanisms. Topic clusters demonstrate breadth of semantic coverage. Entity mentions across pages reinforce topical relevance. Natural language variation captures more semantic-equivalent queries. Semantic SEO is the tactical implementation of topical authority strategy. Modern SEO is semantic SEO - keyword-only optimization is obsolete.
in Topical Authority & Topic Clusters
How do entities improve search engine understanding?SEOGoogleSERP Features+
Entities = specific people, places, things, concepts. Search engines (Google Knowledge Graph, Bing) understand documents via entity recognition. Pages that mention relevant entities + describe relationships clearly rank better for entity-related queries. Example: pillar on 'pilates' should mention Joseph Pilates, Reformer, Cadillac, Wunda Chair, Mat Pilates - the entity space of the topic. Entity-rich content > generic content.
in Topical Authority & Topic Clusters