seo-content-gap

Installable Ships in market-research-agent — or copy the raw skill below.

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SEO and Content Gap Analysis

Identify the topics, keywords, and content formats competitors rank for that the client does not — and produce a prioritized gap register with recommended actions.

When this skill applies

User provides a client domain and one or more competitor domains
User asks for "content gap," "keyword gap," "SEO gap," "what are we missing," or "where are competitors beating us in search?"
Pre-content-strategy work: establishing the current state before building an editorial roadmap
After a competitor teardown, the user wants a deeper SEO/content layer

Skip for: full competitor audit → competitor-teardown; structural market analysis → five-forces-analysis.

Inputs

Parameter	Required	Default
`client-domain`	Yes	—
`competitor1 [competitor2 ...]`	Yes (1–5)	—
`--topics`	No	—
`--depth`	No	`standard`
`--output`	No	`register`

Workflow

Step 1 — Scope and confirm

State:

Client domain and up to 5 competitor domains
Seed topics (if provided) or the inferred topic domain
Depth and output format

Confirm before proceeding if domain or topic scope is unclear.

Step 2 — Organic visibility baseline

For the client and each competitor, collect:

Estimated monthly organic traffic — SimilarWeb public view or SEMrush Overview (public tier). Note: these are estimates; label the source.
Domain authority proxy — Moz Domain Authority (public), Ahrefs DR (public), or SEMrush Authority Score (public). Use the same metric for all domains being compared.
Estimated organic keyword count — SEMrush or Ahrefs public site overview.
Core Web Vitals (mobile) — PageSpeed Insights for each domain; record LCP, CLS, INP.

Present as a comparison table:

Domain	Est. monthly visits	DA/DR/AS	Est. keyword count	LCP (mobile)	CWV overall
[client]
[competitor 1]

Step 3 — Keyword gap identification

Without a paid SEO tool seat:

Identify the competitor's top content pages using publicly available signals:
- Navigate to each competitor domain and examine /sitemap.xml for content sections
- Use site:[competitor.com] [seed-topic] Google search to surface their ranking content
- Note page titles, URL slugs, and H1s — these signal their keyword targets
For each identified competitor content page, check whether the client has a comparable page covering the same topic. Classify each gap as:
- Missing — client has no page on this topic
- Thin — client has a page but it is notably shallower (shorter, less structured, no schema)
- Outdated — client has a page but content date signals are stale (>18 months)
- Covered — client has a comparable or stronger page
Flag each competitor's apparent high-value keyword targets using their on-page signals (title tag, H1, structured data, internal links pointing to the page).

With a paid SEO tool seat (if the user has access):

Use SEMrush Keyword Gap or Ahrefs Content Gap tools directly. Export the "Missing" and "Weak" keyword lists. The methodology above validates and contextualizes the tool output.

Step 4 — Topic authority analysis

For each seed topic (or the top 5–10 inferred from competitor content):

Identify who "owns" the topic in search — which domain appears most frequently in the top 10 results for representative queries
Assess content depth signals: does the ranking page have structured data (FAQ, HowTo, Article schema)? Videos embedded? Internal links from authoritative hub pages?
Note the content type mix competitors use for the topic: long-form guide, comparison page, tool/calculator, video, data study

Output: Topic authority heatmap table showing client vs. each competitor per topic.

Topic	Client ownership	Competitor 1	Competitor 2	Gap severity
[topic]	None / Thin / Moderate / Strong			High / Medium / Low

Gap severity:

High — topic has demonstrable commercial intent or high volume; competitor ranks top 3; client absent
Medium — topic has moderate volume; client has thin coverage; competitor ranks top 10
Low — topic is peripheral; competitor ranks but traffic signal is weak

Step 5 — Backlink gap (directional)

Collect directional backlink signals:

For each domain, note the approximate referring domain count from Ahrefs or Moz public views (not total backlinks — referring domains is the more meaningful signal)
Identify any high-authority referring domains the competitor has that the client lacks (look for .edu, .gov, major media outlets, industry associations)
Flag content types that are attracting links to competitors but absent from the client's library (e.g., original research, data studies, interactive tools, calculators)

Do not present referring domain counts as authoritative — label as directional estimates from the named tool's public view.

Step 6 — AI search visibility (2026 signal)

After Google's March 2026 core update, AI-driven answer surfaces (Google AI Overviews, ChatGPT, Perplexity, Gemini) have become material traffic sources. Check:

For the top 3–5 high-gap topics, query ChatGPT and Perplexity with representative user questions and note which brands or domains are cited in the response
For Google AI Overviews: run a representative query and note whether the client or any competitor is cited in the AI-generated overview
Assess client content for AI answer extraction readiness:
- Concise definitional paragraphs in the first 100 words
- FAQ Schema present
- Explicit answers to "what is X," "how does X work," "best X for Y" question patterns
- Clear byline and author authority signals

Output: AI visibility summary — which competitors are being cited in AI search for the top gap topics, and what content changes would improve the client's citation probability.

Step 7 — Gap register and prioritization

Produce the gap register: a ranked table of content gaps ordered by strategic priority. Prioritize by combining:

Gap severity (High/Medium/Low from Step 4)
Commercial intent signal (does the topic connect to a buying decision?)
Effort-to-close estimate (a short FAQ schema addition vs. a 3,000-word data study are very different efforts)

Priority	Topic/keyword gap	Type	Competitor owning it	Gap severity	Commercial intent	Recommended action	Effort estimate
1		Missing/Thin/Outdated		High/Med/Low	High/Med/Low	[specific action]	Low/Med/High

For --depth deep: produce a 1-page content brief for the top 5 priority gaps (target audience, recommended format, target keywords, suggested structure, schema type, internal linking recommendation).

Step 8 — Self-check before returning

All traffic and keyword count figures are labeled as estimates with the named source
Domain authority figures use the same metric consistently across all domains
AI search citations are labeled as spot-check observations, not systematic brand monitoring
Gap severity and commercial intent are explained, not asserted
The gap register is actionable — each row has a recommended action, not just a finding

Return the gap register (and content briefs if --depth deep) as markdown.

Technical details

Plugin

market-research-agent

Author

Dakota Smith

Skill name

seo-content-gap

Maturity

experimental

Security review

No security review

Owners

strategy

Argument hint

<client-domain> <competitor1> [<competitor2> ...] [--topics <comma-separated-seed-topics>] [--depth quick|standard|deep] [--output register|brief|slides-notes]

Allowed tools

Read
Write
WebFetch(domain:www.semrush.com)
WebFetch(domain:ahrefs.com)
WebFetch(domain:moz.com)
WebFetch(domain:search.google.com)
WebFetch(domain:pagespeed.web.dev)
WebFetch(domain:www.google.com)
WebFetch(domain:aiseotracker.com)

Source

plugins/market-research-agent/skills/seo-content-gap/SKILL.md

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