JetOctopus for JavaScript SEO

JetOctopus is a website crawling tool that enables you to easily audit common JavaScript SEO issues which can hurt AI-driven users and systems, including AI-powered search engines, chatbots and browser-based AI assistants.
Solve your JavaScript SEO challenges at scale with the fastest and most affordable crawler on the market.

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Common Javascript SEO Concerns with Solutions by JetOctopus

JavaScript Load Time

Use our JS performance tool to check execution time, First Paint, First Contentful Paint, Page Load and total JS request completion.
→ See how rendering speed impacts crawlability and visibility for both search engines and AI bots.
On-Page Issues

Use our technical audit section to fix SEO issues caused by JavaScript - missing titles, meta descriptions, duplicate content, load time or 404s.
→ Understand which content elements remain invisible to crawlers and AI bots due to JS rendering.
Indexation & Crawling Problems

We use headless Chrome for crawling the same way Google does, to detect blocked resources and hidden JS content.
→ Analyze how both search engines and AI models interpret your rendered pages.
JS Console Error

Use our JS console reports to find script execution issues affecting rendering and indexation.
→ Detect JavaScript errors that prevent bots and AI systems from seeing your content properly.
JS vs Non JS Error

We crawl each page twice - with and without JavaScript, to identify differences in content, links or metadata.
→ Compare what Googlebot and AI crawlers actually see when accessing your pages.
Rendering Issues

Compare JavaScript and raw HTML versions to detect changes in titles, meta descriptions or indexing behavior.
→ Identify rendering gaps that affect SEO and AI visibility.
Interlinking Analysis

Use our internal linking and structure efficiency tools to discover pages with the weakest link coverage.
→ Strengthen internal linking to improve navigation for both Googlebot and AI crawlers
Page Speed & Core Web Vitals

Use our Core Web Vitals report to find slow pages and performance issues that affect rankings.
→ Optimize for better user experience and ensure fast, crawlable pages for search visibility.

What Makes Us Unique?

JetOctopus Features: The fastest crawler on the market

JetOctopus crawls 1 mln.pages per hour, built for enterprise-scale websites and real-time technical audits. Handle massive datasets and render-heavy sites with ease.; Compare JS vs Non-JS Rendering

See exactly how JavaScript alters your pages - titles, meta descriptions, body text, internal links, and indexing signals. JetOctopus visualizes side-by-side differences between raw HTML and rendered DOM, helping you detect what search engines and AI crawlers actually see and what they miss.; AI-Ready Log Analyzer & Visualization

Get advanced visualizations and charts for Site Visibility and Crawl Budget. See how Googlebot, Bingbot and AI bots like GPTBot or ClaudeBot interact with your site. Identify rendering delays, missed pages and hidden sections and optimize visibility across both search and AI ecosystems.; GSC Module with Advanced Analytics

JetOctopus integrates with Google Search Console to deliver deeper insights into your performance dynamics - impressions, clicks, positions, CTR, cannibalization and keyword visibility.; View Your Website as Googlebot with JS

See your website exactly as Googlebot does with JavaScript fully rendered. Identify missing elements, blocked resources, and content invisible in rendered DOM.; Join datasets option

You can join datasets of crawl, GSC, and logs with multiple filters to apply in one place to get detailed SEO insights within seconds. No excel merge is needed.; Top-down approach

We illustrate the big picture of your SEO problem via different charts that you can use to decompose each issue and filter URLs by issues.; Human support

You’re never alone. Our online support is always responsive. We value all our users and try to provide VIP support for everyone.

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Key Product Values

JS Performance - the main criteria of JS website performance measurement.

Indexation changed - we compare HTML page with JS page and alert you if the indexation of JS page is different comparing to HTML page.

Page title changed - we compare HTML page with JS page and alert you if the Meta description of JS page is different comparing to HTML page.

Meta descriptions changed - we compare HTML page with JS page and alert you if the Meta description of JS page is different comparing to HTML page.

JS errors - all the errors happened when rendering JS at your website are listed in this section by types.

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