Diller

Content Gap Analyzer

Free, no signup. Identify topics a competitor wins, then optionally compare the ranking pages’ internal support to see whether inlinks, anchors, crawl depth, or stronger linking pages may help explain the gap.

Built by Patrick Stox

Paste your Ahrefs/Semrush keyword export first, then a competitor export. Optional paired crawl and internal-link exports add structural evidence. Separate data sets with a line containing ---. Files never leave your browser.

Optional structural comparison: add your crawl page export third and the competitor crawl page export fourth. To compare anchors and linking-source support too, add your internal-link export fifth and the competitor export sixth. Select uploaded files in that order.

Sample report

Illustrative example — based only on the supplied rows

Your export
Keyword,URL,Position,Volume
seo audit checklist,https://example.com/seo-audit/,18,1000
---
Competitor export
Keyword,URL,Position,Volume
seo audit checklist,https://competitor.com/guides/seo-audit/,3,1000
technical seo template,https://competitor.com/guides/seo-audit/,5,500
---
Your crawl pages
URL,Inlinks,Crawl Depth,Link Score
https://example.com/,120,0,100
https://example.com/seo-audit/,2,4,8
---
Competitor crawl pages
URL,Inlinks,Crawl Depth,Link Score
https://competitor.com/,160,0,100
https://competitor.com/guides/seo-audit/,24,2,62
  • seo audit checklist — they rank better; the supplied crawl also shows their page is shallower and sits higher in its own site’s inlink and Link Score distributions.
  • technical seo template — they rank, you do not; no matching URL is inferred from your ranking export.
  • Structural observations — diagnostic associations only. They do not change the directional-upside calculation or prove why Google ranks either page.

How to use it

  1. Export organic keywords for your site and one competitor with keyword, ranking URL, position, and volume columns.
  2. Paste your CSV first, add a line containing ---, then paste the competitor CSV.
  3. For structural comparison, add your crawl-page export third and the competitor crawl-page export fourth. Use URL plus any of Inlinks, Crawl Depth, Internal PageRank, or Link Score.
  4. Optionally add your internal-link export fifth and the competitor export sixth. Each needs Source, Destination or Target, and Anchor or Anchor Text.
  5. Choose Analyze. Check intent first, directional upside second, and structural observations third before deciding between a new page, an on-page improvement, or stronger internal support.
Local data

Saved targets, named lists, and recent check summaries remain only in this browser.

Runs entirely in your browser — nothing you paste is uploaded or stored. Anonymous run-level outcome counters may be used for aggregate research; URLs, domains, IPs, and identifiers are never included, and no statistic is released below 100 runs.

Feedback
Report a bug

Found something broken in Content Gap Analyzer? Let us know what happened — this goes straight to a private triage queue, not a public list.

What will be sent 
 No tool inputs, uploads, pasted source, complete results, query parameters, or URL fragments are attached automatically. You can edit or remove the selected passage above. Browser and anti-abuse metadata is processed for spam prevention. 
  
 
  
 
 
  
 
 
      
How to read the result
  • They rank, you do not means no keyword match exists in your uploaded rows.
  • They rank better means your best observed position trails the competitor by at least five positions.
  • You win means that five-position gap is absent; its modeled upside is zero.
  • Structural observations compare supplied crawl and link evidence but do not claim an internal-link difference caused the ranking gap.
  • Topic is a transparent stem-overlap cluster, not an embeddingEmbeddings are dense numerical vectors — lists of floating-point numbers — that represent the meaning of text in a high-dimensional space. Semantically similar content lands close together, so search and AI systems can match by meaning, not just keywords. or SERP-intent classification.
 
Data sources & freshness
The browser parses the two ranking tables, normalizes recognized export headers, and keeps the best competitor row per keyword. Keywords are grouped when their normalized word stems overlap. Optional crawl-page exports add page inlinks, within-site inlink percentiles, depth, and an optional internal-rank percentile. Optional internal-link exports add unique source pages, topic-aligned anchors, generic or empty anchors, reused anchor labels, shallow source pages, and source pages in the top quartile of the supplied inlink or internal-rank distribution.
 
Features
  • Ahrefs- and Semrush-style ranking header recognition.
  • Screaming Frog-, Sitebulb-, and generic crawl/link column aliases.
  • Browser-only analysis with no account connection.
  • Three explicit competitive verdicts and observed URL mapping.
  • Separate structural evidence that never changes the directional-upside model.
  • CSV export with both raw structural metrics and transparent observations.
 
Limitations
Results are only as complete and current as the supplied exports. Crawl scope and site size affect raw inlink totals, so the report also compares each target’s percentile within its own supplied site. Anchor overlap is lexical and does not establish relevance, PageRank flow, or causation. Exact keyword matching can miss synonyms, while stem overlap can group queries with different intent. Search volume and positions are third-party estimates, the CTR curve is generic, and upside ignores conversion rate, backlinks, authority, SERP featuresSERP features are any element on a search results page beyond the classic ten blue links — featured snippets, People Also Ask, knowledge panels, sitelinks, image and video packs, AI Overviews, and structured-data-driven rich results. Google documents that losing rich-result eligibility doesn't affect ranking; their SEO relevance is CTR (they redistribute clicks). Some are unlocked by markup; most are purely algorithmic., content cost, and ranking probability.
 
Frequently asked questions
What data does the Content Gap Analyzer need?
The base analysis needs two Ahrefs- or Semrush-style keyword CSV tables: yours first and a competitor export second. For structural comparison, optionally add paired crawl-page exports with URL plus Inlinks, Crawl Depth, Internal PageRank, or Link Score. Paired internal-link exports with Source, Destination, and Anchor Text add anchor and linking-source evidence.
What does “they rank, you do not” mean?
The competitor export contains the keyword cluster but your export has no matching keyword row. It does not prove your site has no relevant page; it means no match was present in the supplied export.
Can internal links explain why a competitor ranks better?
They can reveal a plausible structural advantage, not prove causation. The report compares supplied inlinks, within-site percentiles, crawl depth, topic-aligned anchors, and linking-source support separately from the ranking and traffic-upside model.
Is estimated upside a traffic forecast?
No. Upside is a directional prioritization value: the best competitor position in the topic multiplied by its supplied search volume and a conservative default click-through-rate curve.
Does the tool call Ahrefs or Semrush?
No. You supply exports you are authorized to use, and analysis stays in your browser. The tool does not fetch rankings or enrich the files with live data.
 
 
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Araç hakkında
Anahtar kelime dışa aktarımlarını ve isteğe bağlı crawl/link dışa aktarımlarını karşılaştırarak konu boşluklarını bulun, sıralanan URL'leri eşleyin ve iç bağlantı, anchor, derinlik ve sayfa desteği farklarını inceleyin.
Ücretsizdir ve kayıt gerektirmez. Bir rakibin kazandığı konuları belirleyin; sonra inlink, anchor, crawl depth veya daha güçlü bağlayan sayfaların boşluğu açıklayıp açıklamadığını ayrı gözlemleyin.
Özellikler
  • İki anahtar kelime tablosunu konuya göre stem örtüşmesiyle kümeleme.
  • Sıralama URL'si, inlink, anchor, crawl depth ve iç destek kanıtını ayrı gösterme.
  • Rakip kazanımı, “they rank, you do not”, daha iyi sıralama ve kazanılan konu sonuçları.
  • İsteğe bağlı crawl-page ve internal-link dışa aktarımlarıyla yapısal karşılaştırma.
  • Directional upside ile yapısal gözlemleri ayrı tutan rapor ve CSV.
Nasıl çalışır
Siteniz ve bir rakip için keyword, ranking URL, position ve volume sütunlarını içeren organik dışa aktarımları yapıştırın. Yapısal karşılaştırma için crawl-page dosyalarını, ardından Source, Destination/Target ve Anchor/Anchor Text içeren internal-link dosyalarını --- satırlarıyla ekleyin. Analyze'ı seçin; önce intent'i, sonra directional upside'ı, en son yapısal gözlemleri okuyarak yeni sayfa, on-page iyileştirme veya iç destek arasında seçim yapın.
Sınırlamalar
  • Sonuçlar yalnızca sağlanan dışa aktarımlar kadar güncel ve eksiksizdir. Anchor örtüşmesi sözlükseldir; relevans, PageRank akışı veya nedensellik kurmaz. Exact keyword eşleştirmesi eş anlamlıları kaçırabilir, stem örtüşmesi farklı amacı olan sorguları gruplayabilir. CTR eğrisi geneldir; upside dönüşüm, backlink, otorite, maliyet veya sıralama olasılığını hesaba katmaz.
  • İç bağlantılar rakip üstünlüğü için makul yapısal ilişki gösterebilir ancak neden olduğunu kanıtlamaz. Araç canlı veri çekmez veya Ahrefs/Semrush çağırmaz; dosyaları tarayıcıda işler.
Sık sorulan sorular
Content Gap Analyzer hangi verileri ister?
İlk olarak sitenizin, ikinci olarak rakibin keyword CSV'si gerekir. İsteğe bağlı crawl-page dosyalarında URL ile Inlinks, Crawl Depth, Internal PageRank veya Link Score; internal-link dosyalarında Source, Destination/Target ve Anchor/Anchor Text alanları bulunmalıdır.
“They rank, you do not” ne demek?
Rakip dışa aktarımında konu kümesine ait keyword satırı vardır, sizin dışa aktarımınızda eşleşen keyword yoktur. Bu, sitenizde ilgili sayfa olmadığını kanıtlamaz; yalnızca sağlanan dosyada eşleşme bulunmadığını gösterir.
Tahmini upside trafik tahmini mi?
Hayır. En iyi rakip konumu, sağlanan arama hacmi ve ihtiyatlı genel CTR eğrisiyle hesaplanan yönlü öncelik değeridir. Trafik, dönüşüm veya neden-sonuç tahmini değildir.
İç bağlantılar rakibin neden daha iyi sıralandığını açıklayabilir mi?
Makul yapısal farkları gösterebilir ancak nedenselliği kanıtlamaz. Rapor inlink, site içi yüzdelik, crawl depth, konu uyumlu anchor ve bağlayan kaynak desteğini sıralama/upside modelinden ayrı karşılaştırır.
Araç Ahrefs veya Semrush çağırıyor mu?
Hayır. Yetkiniz olan dışa aktarımları siz sağlarsınız; analiz tarayıcıda kalır ve canlı sıralama verisi çekilmez.