# SERP Gap Analyzer review (2026): is it worth $99 a month? > Finds keywords whose top Google results have weak spots to beat Checked Oct 23, 2026 ยท graded Oct 23, 2026 by ToolGPA. SERP Gap Analyzer, made by TopicRanker, looks for keywords whose top 10 Google results are weak: thin, outdated, slow or poorly titled pages, or sites with low authority. It also flags your own pages that are slipping in Google Search Console, grades how often AI chat tools mention your brand, and drafts titles, briefs and articles with AI. It is sold as an app in the Semrush App Center. - **Category:** Keyword Research Tools - **Made by:** TopicRanker Inc. - **Website:** https://topicranker.com - **Runs on:** Web - **Who should skip it:** Pricey if you want lots of keywords, as $99 a month gets 10 reports of 6; Premium is $149 for 30. - **Facts last checked:** Oct 23, 2026 ## Pricing As of Oct 23, 2026, SERP Gap Analyzer is a paid product with a free trial, starting at $99 per month. - **Pricing model:** Free trial - **Free plan:** None. - **Free trial:** 7-day free trial through the Semrush App Center. | Plan | Price | What you get | | --- | --- | --- | | Basic | $99 per month | 3 domains, 6 suggested keywords per report, 10 analysis reports a month and 20 exports to XLS or PDF. | | Premium | $149 per month (Basic plus a $50 monthly upgrade) | Unlimited domains, 12 suggested keywords per report, 30 analysis reports a month and unlimited exports. | Read from https://www.semrush.com/apps/serp-gap-analyzer/ on Oct 23, 2026. Prices change, so confirm with SERP Gap Analyzer before buying. ## Key features - **Weak-spot keyword reports:** Enter a domain and seed topic, with a language and country, and get suggested keywords rated easy, medium or hard, with search volume and the weaknesses of pages ranking now. - **Competitor page checks:** Flags ranking pages with keyword words missing from the title, no update in 6+ months, load times over 3 seconds, under 1,000 words or poor readability. - **Optimize Content with Search Console:** Connect Google Search Console to find your pages in the top 20 over 90 days that are sinking, or get many impressions but few clicks, and see what to fix. - **AI Search Grader:** Tests generated prompts on ChatGPT, Claude, Gemini, DeepSeek, Mistral and Llama, ranks your brand against rivals and gives a 0 to 100 AI Search Score. - **AI writing tools:** GPT-4 tools write post title ideas, content briefs, meta descriptions and full first drafts with Article Genie, based on the analysis. - **Seed topic suggestions:** Crawls your site and uses language analysis to suggest seed topics it covers often; there is no limit on suggestions, but one query runs at a time. ## Good for - Smaller sites hunting for keywords where the current top results are weak - Content teams deciding which slipping pages to update first - Semrush users who want SERP weak-spot analysis inside their account ## Worth knowing - Sold through the Semrush App Center, so it needs a Semrush account; the maker's own site sends trial sign-ups there. - Basic allows 10 analysis reports a month with 6 suggested keywords each; Premium raises that to 30 reports and 12 keywords for $50 more. - Each report can take up to 15 minutes, and a scanned domain cannot be deleted, only archived. - TopicRanker's own pricing cards show tighter limits than the Semrush listing, such as 1 domain and 3 reports a month on Basic. ## ToolGPA grades **GPA: 2.0 out of 4**, graded Oct 23, 2026. SERP Gap Analyzer, from TopicRanker, looks for keywords where the pages ranking now are thin, old, slow or badly titled, and flags your own pages slipping in Search Console. It's sold through the Semrush App Center, so you need a Semrush account. Basic is $99 a month for 10 reports of 6 keywords each, reports take up to 15 minutes, and the maker's own pricing shows tighter limits than Semrush's listing. - **Value for money: D.** Basic is $99 a month, well into this category's dearest tenth, for 10 reports a month with 6 suggested keywords each. Premium is $149 for 30 reports. That's a lot per keyword, even with the AI writing tools thrown in. - **Free plan and trial: C.** No free plan, but a 7-day free trial through the Semrush App Center. You'll need a Semrush account to start it. - **Features: C.** Weak-spot keyword reports, checks on ranking pages' titles, age, speed and length, Search Console fixes for slipping pages, an AI Search Score and GPT-4 drafts. It does its job, but 6 keywords per report on Basic is thin. - **Ease of use: C.** No rating on record. You need a Semrush account, then a domain, seed topic, language and country for each report, and up to 15 minutes' wait for it. - **Platforms and integrations: B.** Web only, inside Semrush, and it connects to Google Search Console to find your pages that are slipping. No desktop or phone app, and no API on record. These are ToolGPA's own grades. Graded from this listing, whose facts were read from its Semrush App Center page and TopicRanker's own site on 23 October 2026. Not based on using the product, and shorter than our full reviews. ## Where it stands among keyword research tools - SERP Gap Analyzer's GPA of 2.0 is higher than 4 of the 51 other keyword research tools we grade, and level with 7. - It stands best on platforms and integrations (B, above 26 of 51) and worst on value for money (D, above 0). - Its paid plans start at $99 a month, against a middle price of $18 for the category: 35 of the 35 others that charge start lower. - On features, ease of use and platforms it scores 2.3 out of 4. 15 tools score higher and cost less. The category's chart of price against score: https://toolgpa.com/charts/keyword-research ## Keep it, or make your own? **Keep it.** To replace SERP Gap Analyzer you would be making search volumes for millions of keywords, gathered and kept up to date. That is not a weekend's work, with an AI app builder or without one. That makes this kind of software worth paying for, not this one in particular: 40 of the 51 other keyword research tools grade higher. It costs $1,188 a year. - You could make: Long-form writing: an app builder makes this well. - You could not: Search volumes for millions of keywords, gathered and kept up to date. - You could not: A score built from what the top results for each keyword cover. - You could not: The same prompts asked of ChatGPT, Perplexity, Gemini and Google's AI answers every day, and the answers kept. - You could not: AI features, unless you pay a model provider for each request yourself. A judgement by ToolGPA from this listing, by rules that are the same for every tool. Nothing was built to test it. ## Works with Semrush, Google Search Console **Tags:** Keyword research, Content optimization, AI search visibility, Long-form writing, AI features ## Alternatives - [Keyword Chef](https://toolgpa.com/tools/keyword-chef): Credit-based long-tail keyword finder for bloggers and niche sites. [Compare](https://toolgpa.com/compare/keyword-chef-vs-topicranker) - [KeySearch](https://toolgpa.com/tools/keysearch): Low-cost keyword research tool with rank tracking and site audits. [Compare](https://toolgpa.com/compare/keysearch-vs-topicranker) - [Semrush](https://toolgpa.com/tools/semrush): SEO suite for keyword research, rank tracking and AI search visibility. [Compare](https://toolgpa.com/compare/semrush-vs-topicranker) - [Ahrefs](https://toolgpa.com/tools/ahrefs): SEO toolset for backlinks, keyword research, audits and rank tracking. [Compare](https://toolgpa.com/compare/ahrefs-vs-topicranker) ## Sources The prices, plans, platforms and features above were read from these pages on Oct 23, 2026: - https://www.semrush.com/apps/serp-gap-analyzer/ - https://www.semrush.com/kb/1377-serp-gap-analyzer - https://www.semrush.com/kb/1117-app-center - https://topicranker.com/ Page: https://toolgpa.com/tools/topicranker Listed by ToolGPA (toolgpa.com).