Find the content gaps competitors fill. Close them in one click.
Enter your domain plus 1–2 competitor domains. SemlyPro returns every keyword they rank for that you don’t, prioritises by traffic potential, and publishes the gap-closing content directly to your CMS.
| Keyword | Volume | Difficulty | Competitor 1 | Competitor 2 | You |
|---|---|---|---|---|---|
| best ai seo tool 2026 | 9,400 | Med | #4 | #9 | — miss |
| how to track ChatGPT citations | 2,200 | Easy | #2 | #7 | — miss |
| aeo vs seo | 14,800 | Med | #1 | #6 | — miss |
| generative engine optimization | 5,100 | Hard | #3 | #5 | — miss |
| perplexity visibility tracker | 880 | Easy | — | #4 | — miss |
14 high-priority gaps found · 3 marked “Easy”
Publish gap-closersPrefer a tour first? See how the loop works →
AI Overview answer block
What is content gap analysis?
Content gap analysis is the practice of identifying topics and keywords that competing websites rank for but yours doesn’t — then prioritising which gaps to fill based on traffic potential, ranking difficulty, and business relevance.
Unlike keyword research, which starts from a blank page, content gap analysis benchmarks against direct competitors. In the AI-search era it also covers AEO gaps —prompts where competitors are cited by ChatGPT, Perplexity, or Google AI Overviews but you aren’t.
Search terms competitors rank for on Google that your site doesn’t cover.
Prompts where AI engines cite competitors but skip your brand entirely.
Subject clusters competitors own that you have no authority in yet.
Most tools find the gap. SemlyPro finds it, fills it, and publishes the fill to your CMS.
Trusted by content teams closing competitor gaps
Why now
Your competitors are ranking on questionsyou haven’t answered yet.
Every uncovered topic in your category is a competitor citation, a Google ranking, or an AI Overview mention that goes to someone else. Gap analysis turns that into a fixable list.
are missed by the average B2B site — gaps you don’t even know about.
is captured by sites that close 25%+ of identified gaps in 90 days.
from discovering a gap to publishing the fill — SemlyPro cuts that to one day.
The closed-loop difference
Ahrefs and Semrush find the gap. SemlyPro fills it.
Every read-only gap tool ends at the spreadsheet. SemlyPro hands you the spreadsheet, the briefs, the drafts, and the publish button — across WordPress, Webflow, Shopify, HubSpot, and 8 more CMSes.
Capability
Read-only gap tools
SemlyPro
How it works
From competitor URL to published gap-closer, in one workflow.
Other tools stop at step three. SemlyPro extends the loop into your CMS — and re-measures the rank and citation lift automatically.
01
Compare
Enter your domain plus up to five competitor domains. SemlyPro crawls everything they rank for that you don’t.
02
Prioritise
Every gap is scored by search volume, ranking difficulty, AI-citation potential, and topical fit. Quick wins float to the top.
03
Generate
For any gap you select, SemlyPro drafts AI-optimised content tuned to the keyword’s SERP intent and your tone of voice.
04
Publish
One-click to WordPress, Webflow, Shopify, HubSpot & 8 more. Then SemlyPro re-tracks the rankings and citations the gap closes.
What's inside
Six tools that turn gaps into published rankings.
Multi-domain comparison
Stack up to five competitor domains side-by-side. Surface every keyword they share, every keyword only one of them owns, and every keyword you can take.
Smart priority scoring
Each gap gets a single score combining volume, ranking difficulty, AI-citation potential, and topical fit. No more sorting 10k-row CSVs.
SERP + AI dual view
See keyword gaps for Google AND prompt gaps for ChatGPT, Perplexity & Google AI Overviews — the same workflow covers both.
Topic cluster mapping
Auto-cluster individual gaps into topic-authority groups. Build entity authority instead of chasing one-off keywords.
SERP intent classification
Each gap is tagged as informational, commercial, navigational, or transactional — so you write the right kind of page first time.
One-click multi-CMS publishing
The wedge no read-only gap tool can match. Push gap-closing content directly to WordPress, Webflow, Shopify, HubSpot & 8 more — then watch the citations climb.
Who it's for
Built for the teams closing the gap fastest.
Identify and prioritise content gaps without exporting another 10k-row spreadsheet.
From audit to backlog in 1 day
Get a prioritised list of gaps + AI-drafted briefs ready to publish — no manual research.
Topic to published in 8 min average
See exactly where your blog is losing to competitors — and ship the fixes yourself, fast.
First gap closed in under 7 days
Run gap analyses across 50+ client workspaces. White-label-ready reports.
Scale from one to 50 clients
Customer proof
Real gaps closed. Real ranking lifts.
Hero case study
How [Customer] closed 47 competitor gaps in 60 days
Starting with a gap analysis against three direct competitors, [Customer] prioritised 47 quick-win gaps, published 23 to WordPress and Webflow, and lifted organic traffic 3.6× and AI citations 4.2× in the same quarter.
“Ahrefs gave us the spreadsheet. SemlyPro gave us the published articles. We closed 22 gaps in our first month.”
“We replaced three tools — Ahrefs gap, Frase briefs, and our manual publish workflow — with SemlyPro. Same week we shipped the first 5 gap-closers.”
Pricing
Closed-loop content gap analysis, from $149/mo.
Every plan includes the full loop — gap discovery, priority scoring, content generation, and publishing to 12 CMSes.
Business Pro
Growing teams & agencies
Full plan includes the closed loop
FAQ
Content gap analysis, questions answered.
Content gap analysis is the practice of identifying topics and keywords that competing websites rank for but yours doesn't — then prioritising which gaps to fill based on traffic potential, ranking difficulty, and business relevance. In the AI-search era it also includes AEO gaps: prompts where competitors are cited by ChatGPT, Perplexity, or Google AI Overviews but you aren't.
Keyword research starts from a blank page — generating ideas from search-volume data or your own brainstorm. Content gap analysis starts from your competitors' winning content. It is more efficient because every gap is, by definition, a topic with proven search demand AND proven business relevance to your category.
You enter your domain plus up to five competitor domains. SemlyPro crawls every keyword they rank for that you don't, scores each gap by volume, difficulty, AI-citation potential, and topical fit, and groups them into topic clusters. For any gap you select, SemlyPro can then draft the article and publish it to your CMS in one click.
Yes. SemlyPro supports up to five competitor domains in a single comparison. You see gaps unique to each competitor, shared gaps where multiple competitors beat you, and gaps the entire category is missing — useful for identifying market-wide blue-ocean topics.
Keyword gap analysis is a subset focused on individual search terms. Content gap analysis is broader: it covers individual keywords, topic clusters, content formats (e.g., comparison pages vs guides), and — in SemlyPro's case — AEO prompts AI engines answer with competitor content. Keyword gap is necessary; content gap is sufficient.
SemlyPro queries ChatGPT, Perplexity, Google AI Overviews, Gemini, and Claude with the same prompts your buyers use. When a competitor is cited and you aren't, that's an AEO gap. These gaps are scored and prioritised next to traditional keyword gaps in a single unified list.
Ahrefs and Semrush are read-only research tools — they identify gaps and stop there. SemlyPro closes the loop: it identifies the gaps, drafts AI-optimised content that fills them, and publishes that content directly to 12 CMS platforms (WordPress, Webflow, Shopify, HubSpot, and 8 more). Re-tracking after publish is automatic.
Yes. Once a gap is identified and a draft is approved, one click publishes the article to your live CMS — WordPress, Webflow, Shopify, HubSpot, Sanity, Contentful, Ghost, Wix, Squarespace, Strapi, Notion, or Framer. Schema, metadata, and OG tags are applied automatically.
Most gap analyses finish in under 90 seconds for a single competitor and under 5 minutes for the full five-competitor comparison. Results are emailed as soon as they are ready and visible live in your SemlyPro dashboard.
SemlyPro publishes directly to 12 CMS platforms: WordPress, Webflow, Shopify, HubSpot, Sanity, Contentful, Ghost, Wix, Squarespace, Strapi, Notion, and Framer. One click moves a draft from SemlyPro to your live site with schema, meta tags, and OG images applied.
Find the content gaps competitors fill — and close them in one click.
Free gap analysis · 90 seconds · No credit card. Enter your domain + your top competitors and see exactly which keywords you’re losing today.