Overview

The crawler examines status codes, redirects, structured data, tags, site structure, and other on-page SEO details. It detects more than 100 technical issues, including broken links, duplicate pages, faulty meta tags, canonical problems, and pagination issues. That breadth makes it useful for recurring technical audits, while its Windows and macOS availability rules it out for teams that need a web-based crawler or another platform.

Netpeak Software is headquartered in London. The company says its products were developed in 2010 and that it has operated independently from Netpeak Agency since 2016. Support includes a knowledge base and Help Center tickets, which usually receive a response within 24 hours on working days, along with automatic software updates.

Key features

JavaScript rendering: Chromium rendering lets Spider crawl JavaScript pages, useful when important page content depends on client-side code.
Structured-data and technical audits: Structured-data checks sit alongside the broader issue detection, giving specialists a way to examine both markup and common crawl problems in one tool.
Scraping: The built-in scraper supports up to 15 conditions and four search types: contains, Regexp, XPath, and CSS. That offers useful flexibility for targeted extraction without turning the product into a general-purpose data platform.
Built-in utilities: Internal PageRank calculation, source-code and HTTP-header checks, and sitemap generation and validation extend its use beyond a standard crawl.
Integrations and exports: Google Analytics and Google Search Console integrations, CSV imports, and exports to Google Drive and Sheets connect crawl work to other workflows. Reports can be exported as CSV, XLSX, or PDF; PDF audits can include a company logo, contacts, and recommendations, which is particularly useful for client-facing work.

Netpeak Software says it does not sell personal data and processes it in compliance with the EU GDPR. Its privacy policy also says service providers are selected for data-protection and security standards and must keep shared information confidential and follow processing instructions.

Pricing

The freemium model includes a free plan and a 3-day trial. Netpeak Spider Free is free and allows 500 URLs, 5 threads, and 2 devices per user on Windows and macOS. Those caps make it suitable for small sites or occasional checks, but a 500-URL ceiling can constrain a broader site audit.

Netpeak Spider Pro Monthly costs 20.00 USD per month, billed 1 month. It includes unlimited URLs, 200 threads, and 2 devices per user on Windows and macOS. It is the straightforward choice for users who need a larger crawl without a long billing commitment.

Netpeak Spider Pro Yearly costs 193.00 USD per year, billed 1 year; the page also shows $240. It has the same unlimited URLs, 200 threads, and 2-device allowance as monthly Pro. The annual term is for users ready to commit for a year, but the additional $240 figure makes the displayed pricing less clear than the monthly option.

Netpeak Spider Pro Lifetime costs 496.00 USD per once, billed forever, with unlimited URLs, 200 threads, and 2 devices per user. It avoids recurring billing for someone planning to use the crawler long term, but requires the largest upfront payment. Other Pro Monthly, Yearly, and Lifetime entries specify 1 user and the same crawl and thread limits but have custom pricing; they do not state the two-device allowance.

Platforms

Netpeak Spider runs on Windows and macOS. The Free and priced Pro plans each allow use on 2 devices per user, making them practical for an individual working across two computers, but not a substitute for multiple seats: the priced Pro options cover one user.

Who it's for

SEO specialists, webmasters, link builders, developers, and QA teams are natural fits for a crawler that combines technical checks, JavaScript rendering, and scraping. Marketing and content teams may value the audit exports and Google integrations, while sales teams, PPC specialists, and bloggers are among the other audiences Netpeak identifies for its products. The one-user Pro plans are a better match for individual practitioners than groups that need shared seats.

Pros and cons

Pro: More than 100 technical checks, including structured-data auditing, cover a broad set of common SEO issues in one crawl.
Pro: Chromium rendering and four scraper search types support sites and extraction tasks that a simpler crawler may not handle.
Pro: Customizable PDF audit reports and exports to common file formats help turn crawl findings into client or team deliverables.
Con: Free crawling stops at 500 URLs and 5 threads, limiting its usefulness for larger sites.
Con: Priced Pro plans are for one user, so a team needing multiple accounts should consider another arrangement.
Con: The annual Pro display includes both 193.00 USD per year and $240, so the price presentation is less straightforward than the monthly rate.

Alternatives

Ahrefs is a better fit for readers who want broader SEO data through a web and API platform: its free plan offers site data and limited Site Explorer and Site Audit access.

Pick Semrush if its free allowance of one demo project and 10 reports per day suits your needs better than a desktop crawler's URL and thread limits.

Mangools is another freemium option for readers comparing SEO software.

SEO PowerSuite offers a free plan with one project, 500 URLs, 1,100 backlinks, and one competitor per project; consider it if those project-level limits match your work.

Choose Moz Pro if you prefer web or browser-extension access and an entry-level plan priced at 49.00 USD per month for individuals managing one website.

SiteGuru may suit readers looking for a web-based option with a Small plan priced at 49.00 USD per month for five websites and 5,000 pages per site.

SpyFu is an alternative for readers whose priority is its Basic plan's search results, data exports, live site tracking, and keyword-ranking allowances.

For more choices, browse SEO Analytics Software, Technical SEO Software, SEO Audit Software, SEO Crawler Software, and SEO tools.

Verdict

Netpeak Spider is a strong fit for solo SEO practitioners and site teams on Windows or macOS who want broad technical audits, JavaScript rendering, and flexible reporting in one crawler. Its free plan provides a useful way to handle small crawls, while Pro removes the URL ceiling and raises the thread limit substantially. Look elsewhere if you need web-based access, more than one Pro user, or a free crawl large enough for a bigger site.

	Netpeak Spider	SEM Optimiser
Free plan	Yes	Yes
Free trial	Yes
Paid from		$4.08/mo
Platforms	macOS, Windows	api
Free plan	Yes	Yes
JavaScript rendering	Yes
Structured data audit	Yes
Paid from		$49/mo
Keyword research		Yes
Rank tracking		Yes
Site audit		Yes
Backlink analysis		Yes
Competitor research		Yes
API access		Yes
Tracked keywords		2,000 keywords

Netpeak Spider vs SEM Optimiser

Netpeak Spider

SEM Optimiser