Krawly.io is a free online platform that provides 160+ web scraping, SEO analysis, security auditing, and developer tools. It allows users to extract data from websites, analyze SEO performance, check security headers, detect technologies, scrape YouTube data, generate leads, and much more — all without requiring signup or installation.

Is Krawly free to use?

Yes! You get 10 free uses per week without signing up. Create a free account to get 100 credits as a signup bonus, or upgrade to a paid plan starting at $9/month for 1,000 credits.

Do I need to install anything?

No installation needed. All 160+ tools run directly in your browser with no downloads or setup required. There is also a REST API and a Chrome extension for advanced users.

What data formats can I export?

All tools support JSON, CSV, and Excel (XLS) export. The screenshot tool provides PNG images. API responses are in JSON format.

How does the Krawly API work?

After signing up, you get an API key from your dashboard. The REST API accepts JSON POST requests and returns structured data. All 160+ tools are available via the API at https://krawly.io/api/v1/tools/.

What types of tools does Krawly offer?

Krawly offers tools in 11 categories: SEO (meta tag validator, heading analyzer, keyword density, core web vitals), Web Scraping (email scraper, table extractor, CSS selector scraper), Security (SSL checker, port scanner, WordPress scanner), OSINT (DNS lookup, WHOIS, IP geolocation), E-Commerce (Amazon scraper, Shopify scraper, price tracker), YouTube (comments scraper, playlist extractor, thumbnail downloader), Developer (JSON formatter, regex tester, JWT decoder), Content (word counter, readability score), Analysis (technology detector, page speed analyzer), Social Media (TikTok analyzer, Instagram analyzer), and Utilities (QR code generator, URL shortener).

Is Krawly a good alternative to SEMrush, Ahrefs, or BuiltWith?

Krawly provides many of the same on-page SEO analysis features as SEMrush and Ahrefs for free, including meta tag validation, heading analysis, keyword density checking, and structured data auditing. For technology detection, it serves as a free alternative to BuiltWith and Wappalyzer. However, Krawly focuses on individual page analysis rather than domain-wide crawling or backlink databases.

Can I use Krawly for lead generation?

Yes. Krawly's Lead Generation tool automatically crawls a website's homepage, about, contact, and team pages to extract email addresses, phone numbers, LinkedIn profiles, Twitter handles, Facebook pages, Instagram accounts, and GitHub links. Results can be exported as JSON, CSV, or Excel.

How is the speed score calculated?

The score considers TTFB, total load time, HTML size, resource counts, and the presence of render-blocking elements. Each factor is weighted and combined into a 0–100 score.

Does it use Google Lighthouse?

No, this tool performs its own server-side analysis using HTTP timing and HTML parsing. It provides complementary insights to Lighthouse.

Can I test multiple URLs?

Yes, enter multiple URLs to test and compare page speed across your site or across competitors.

Back to all tools

Page Speed Analyzer

Analysis

Analyze website loading speed, resource counts, render-blocking scripts, and get optimization recommendations.

Unlock Full Power with Krawly Pro

Get access to all 150+ tools with higher limits. Start with 100 free credits — no credit card required.

Use via API

Page Speed Analyzer — cURL

curl -X POST "https://krawly.io/api/v1/tools/page-speed-analyzer/" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{"url": "https://example.com"}'

Get 100 Free Credits View Pricing Plans API Docs

150+ Tools Full API Access Bulk Processing Priority Support

What is Page Speed Analyzer?

The Page Speed Analyzer measures your website's loading performance by testing response times, resource counts, HTML size, and render-blocking elements. It provides an overall speed score (0–100) with a letter grade and actionable optimization recommendations.

Use Cases

Website optimization — identify slow-loading pages and fix performance bottlenecks
SEO improvement — page speed is a Google ranking factor; faster sites rank higher
User experience auditing — ensure visitors don't leave due to slow load times
Competitive benchmarking — compare your page speed against competitors
Pre-launch checks — verify performance before deploying new pages or features