Topical Map / Silo Planner

A topical map is a structured plan of every piece of content your site needs to comprehensively cover a subject area. It organizes topics into hierarchies: broad themes at the top, progressively specific subtopics branching out beneath them, and individual article ideas at the leaves. The finished map looks like a tree, or more accurately, a collection of trees, with each tree representing a topic cluster your site should own.

The concept comes from how search engines evaluate topical authority. Google doesn't assess individual pages in isolation. It evaluates how thoroughly a site covers a subject by looking at the breadth of related content, the depth of coverage on each subtopic, and how those pieces connect to each other through internal links. A site with one article about "email marketing" is a page. A site with fifty interlinked articles covering strategy, automation, deliverability, list building, copywriting, analytics, platforms, compliance, and segmentation is an authority.

A topical map is the blueprint that turns a site from a collection of disconnected pages into that authoritative resource. It answers three questions before any content is created: what topics do we need to cover, how do they relate to each other, and in what order should we build them out.

A content silo is a group of closely related pages organized around a single theme, connected through a deliberate internal linking structure that keeps topical relevance contained and concentrated. The term comes from Bruce Clay's silo architecture concept, which proposed that websites should organize content into thematic compartments where pages within a silo link primarily to each other.

The mechanics are straightforward. A silo has a pillar page at the top that covers the broad topic comprehensively. Below it sit supporting pages that each address a specific subtopic in depth. The pillar links down to each supporting page. Each supporting page links back up to the pillar. Supporting pages within the same silo link to each other where contextually relevant. Links between silos happen sparingly and intentionally.

This structure accomplishes two things simultaneously. For search engines, it concentrates topical relevance. All the internal links within a silo carry topic-related anchor text, and the link equity flows between pages that reinforce the same subject. For users, it creates a logical navigation path through related content that mirrors how they naturally explore a topic.

Silos and topic clusters are essentially the same concept described by different communities. The SEO world tends to use "silo." The content marketing world tends to use "topic cluster" or "hub and spoke." The architecture is identical: a central page surrounded by supporting content with structured internal links.

The tool walks you through building a topical map from the top down, starting with your core themes and drilling into specific content opportunities.

• Core topic definition. You start by entering the broad subjects your site should cover. Each core topic becomes the root of a silo.
• Subtopic branching. For each core topic, the planner helps you identify the natural subtopic branches. You can add, rename, and reorganize subtopics within each silo to match your content strategy.
• Article-level planning. Each subtopic branches further into specific article ideas. These are the individual pages that will be written.
• Hierarchy visualization. The planner renders your complete topical map as a visual tree showing every level from core topic to individual article. You can see the full scope of your content plan, identify branches that are underdeveloped, and spot areas where coverage is disproportionately deep or shallow.
• Internal link mapping. For each node in the tree, the planner suggests which other nodes should link to it and which it should link to. Pillar pages link to all their direct children. Supporting pages link to siblings within the same cluster. Cross-silo links are suggested when two topics in different silos have a natural relationship.

Google has moved progressively toward rewarding sites that demonstrate deep, comprehensive expertise on specific subjects rather than sites that publish broadly about everything. This shift has practical implications for how content strategy should be planned.

• Ranking leverage across an entire topic. When Google recognizes a site as authoritative on a subject, individual pages on that site benefit from the collective authority of all related content. A new article about "agile sprint planning" on a site with fifty other agile-related articles starts from a stronger position than the same article on a site with no other agile content.
• Diminishing competition as depth increases. Broad, high-volume keywords attract intense competition. Long-tail subtopics within those broad areas are often underserved. A site that systematically covers every subtopic in a domain picks up traffic from hundreds of low-competition queries while simultaneously strengthening its ability to compete for the high-volume terms.
• Internal link equity concentration. A well-structured silo concentrates link equity within a topical cluster. When one page in the silo earns a backlink, the link equity flows through internal links to every other page in the silo. Without silo structure, that equity disperses across unrelated pages where it has less topical impact.
• User experience and content discovery. Beyond search engines, topical structure benefits users. A visitor who finds your article on "task prioritization" and discovers linked articles on "task dependencies," "daily standups," and "task management tools" stays longer, visits more pages, and develops a stronger impression of your expertise.

Choosing the right core topics determines whether your topical map leads to authority or dilution. The selection should be driven by business relevance, search demand, and realistic competitive positioning.

• Start with your expertise. What does your business genuinely know more about than most competitors? Topical authority requires depth, and depth requires real knowledge. Map your core topics to your actual expertise, not to whatever has the highest search volume.
• Validate with search demand. Expertise alone doesn't justify a silo if nobody's searching for the topic. Use keyword research to confirm that your core topics have meaningful search volume distributed across multiple subtopics.
• Assess competitive viability. Some topics are dominated by entrenched authorities that a newer or smaller site can't realistically challenge. Your core topics should be areas where you can realistically build authority within a reasonable timeframe.
• Limit the number of silos. Spreading across too many core topics dilutes your resources and slows authority building in each one. Most sites should start with three to five core topics and build depth within those before expanding.
• Align with business goals. Every silo should connect to something your business offers. Content for content's sake drives traffic but not revenue. Each core topic should map to a product, service, or conversion goal.

The distinction between pillar and supporting content determines the structure of your silo and how users and search engines navigate it.

• Pillar pages cover the full breadth of a topic. A pillar page on "email marketing" should touch on strategy, tools, automation, deliverability, list building, analytics, and every other major subtopic within the silo. The coverage is wide but not deep on any single subtopic. Think of it as a comprehensive overview that gives the reader a map of the entire subject.
• Supporting pages cover a single subtopic in depth. A supporting article on "email deliverability" dives deep into inbox placement, sender reputation, authentication protocols, spam triggers, and bounce management. It covers one branch of the topic tree thoroughly.
• Search targeting differences. Pillar pages typically target the broadest, highest-volume keyword in the silo. Supporting pages target long-tail variations and specific subtopic queries. This prevents internal keyword cannibalization by giving each page a distinct ranking target.
• Content format differences. Pillar pages tend to be longer (3,000 to 5,000 words or more), structured with many sections, and designed as reference resources. Supporting pages are more focused (1,500 to 2,500 words), structured around a single question or concept, and designed to satisfy a specific search intent completely.

Silos aren't hermetically sealed. Topics relate to each other across silo boundaries, and pretending they don't creates an artificial structure that harms both user experience and link equity flow.

• Link where there's genuine topical overlap. If your "project management" silo has an article about "stakeholder communication" and your "team collaboration" silo has an article about "meeting facilitation," these topics are naturally related. Linking between them makes sense for users and search engines alike.
• Use cross-silo links sparingly. The majority of internal links from any page should point to other pages within the same silo. Cross-silo links should be meaningful exceptions, not routine.
• Link at the appropriate level. Cross-silo links work best between supporting pages that share a specific subtopic rather than between pillar pages that share only a broad thematic connection.
• Don't create orphaned silos. A silo with zero connections to any other content on the site misses the link equity benefits of your broader domain. Every silo should have at least a few natural bridges to related silos.

There's no fixed number, but there are practical thresholds that mark the difference between a silo that signals authority and one that's too thin to register.

• Minimum viable silo. A pillar page plus five to eight supporting articles is the lower bound for a cluster that starts to signal topical depth. Below that, the silo is too thin for search engines to recognize a pattern of coverage.
• Competitive silos. For topics where competitors have established deep content libraries, matching or exceeding their coverage requires more volume. Audit competitor content depth as part of your planning.
• Diminishing returns. At some point, additional articles within a silo stop adding meaningful authority and start producing content that cannibalizes existing pages. Let the natural depth of the topic determine the silo size rather than targeting an arbitrary article count.
• Build incrementally. You don't need to publish an entire silo at once. Start with the pillar page and the highest-priority supporting articles. Publish consistently, adding depth over weeks and months. A silo that gains three articles per month for a year ends up at 36 supporting pages without requiring a massive upfront content investment.

• Planning content you'll never create. A topical map with 500 planned articles is inspiring on paper and demoralizing in practice if your team produces four articles per month. Plan what you can realistically execute within a meaningful timeframe.
• Building silos around keywords instead of topics. A silo should represent a genuine subject area, not a group of keywords that share a word. "Content marketing," "content strategy," and "content calendar" relate topically. "Content marketing," "content moderation," and "content delivery network" share the word "content" but belong in completely different silos.
• Ignoring cannibalization in the plan. Two articles targeting nearly identical queries within the same silo split your ranking potential instead of concentrating it. During planning, check that each article has a distinct search intent and a unique angle.
• Creating silos with no conversion pathway. Every silo should connect to a business outcome. Map each silo to a product, service, or conversion goal during planning, not after publication.
• Rigid adherence to silo boundaries. Treating silos as sacred walls that content must never cross produces an unnatural site structure. Build silos for structure, then use cross-silo links for reality.
• Planning the map once and never updating it. Topics evolve. New subtopics emerge. Search behavior shifts. Review and update your map quarterly, adding new opportunities and deprioritizing areas where the landscape has shifted against you.