# Dotcom-Tools

> Dotcom-Tools (www.dotcom-tools.com) is a free suite of website and network testing tools by Dotcom-Monitor. Each tool runs a one-off test against a public website, server or IP address from monitoring locations around the world (up to 3 locations per test without an account; a free account allows 5 and adds test history, sharing and comparison; paid plans and OnDemand credits add every location, scheduled tests, 13-month history and an API). Results can be exported as PDF, CSV and JSON. Private and internal network addresses cannot be tested; IPv6 targets are not supported yet.

## API

The Dotcom-Tools REST API (paid plans) starts any of the tests below from chosen locations and returns JSON results. Base URL `https://wwwnew.dotcom-tools.com/api/v1`; send your API key in the `X-Api-Key` header. Start a test with `POST /api/v1/tests/{type}`, then poll `GET /api/v1/tests/{id}` until it finishes.

- [API reference as Markdown](https://wwwnew.dotcom-tools.com/docs/api.md): the whole reference in one file for agents and scripts: guide, every endpoint and every model.
- [OpenAPI description](https://wwwnew.dotcom-tools.com/api/v1/openapi.json): machine-readable OpenAPI 3.1, for Postman, code generators and tools.
- [API reference](https://wwwnew.dotcom-tools.com/docs/api): the interactive reference (needs JavaScript).

## Website performance

- [Website Speed Test](https://wwwnew.dotcom-tools.com/website-speed-test): loads a page in real Chrome (Lighthouse) from multiple locations; load time, TTFB, LCP, CLS, TBT, waterfall, filmstrip, video, Lighthouse scores, HAR export.
- [Mobile Website Speed Test](https://wwwnew.dotcom-tools.com/mobile-website-speed-test): the same test with Pixel 8 mobile emulation and 4G or 3G throttling.
- [China Firewall Test](https://wwwnew.dotcom-tools.com/china-firewall-test): the speed test run from locations inside mainland China, showing whether a site or some of its resources are blocked by the Great Firewall.
- [Web Server Test](https://wwwnew.dotcom-tools.com/web-servers-test): one HTTP/HTTPS request (any method, headers, body, Basic Auth) with DNS, connect, TLS, TTFB and download timing, status code, redirects, content check and certificate details.

## Network and DNS

- [Ping Test](https://wwwnew.dotcom-tools.com/ping-test): 5 ICMP echo requests from each location; average latency and packet loss.
- [Network Latency Test](https://wwwnew.dotcom-tools.com/network-latency): latency to a server from several locations (via the Ping Test), plus what network latency is, typical values by distance and how to reduce it.
- [Traceroute Test](https://wwwnew.dotcom-tools.com/network-trace-test): ICMP traceroute, 4 probes per hop, min/avg/max latency and loss per hop.
- [DNS Trace Test](https://wwwnew.dotcom-tools.com/dns-trace-test): iterative DNS resolution from the 13 root servers to the authoritative name servers, asking every name server at each level; flags disagreements (propagation) between servers and locations.

## Email, file transfer and streaming

- [Email Server Test](https://wwwnew.dotcom-tools.com/email-server-test): SMTP, IMAP and POP3 connection, STARTTLS or SSL/TLS, certificate and optional login; no email is sent.
- [Email Blacklist Check (DNSBL)](https://wwwnew.dotcom-tools.com/email-blacklist-test): IPv4 addresses checked against 8 DNS blacklists (Spamhaus ZEN, SpamCop, Barracuda, PSBL, SpamRATS, UCEPROTECT L1, Mailspike, DroneBL).
- [FTP Server Test](https://wwwnew.dotcom-tools.com/ftp-test): FTP and FTPS (explicit and implicit) connection, login and passive-mode directory listing; SFTP is not supported.
- [Streaming Media Test](https://wwwnew.dotcom-tools.com/streaming-media-test): HLS (M3U8), MPEG-DASH manifests and progressive media files; startup time, download speed vs. bitrate, buffer ratio, codec and resolution.

## Related

- [Website Status Checker and Website Monitoring](https://wwwnew.dotcom-tools.com/website-monitoring): check whether a website is up from several locations, and how 24/7 website monitoring works.
- [Web Application Testing Tools](https://wwwnew.dotcom-tools.com/web-application-testing): guide to functional, cross-browser, performance, load, security and monitoring tools for web apps, with a testing checklist.
- [What Is Load Testing?](https://wwwnew.dotcom-tools.com/load-testing-performance): load vs. stress vs. performance testing, test types, metrics and how to run a load test.
- [Dotcom-Monitor](https://www.dotcom-monitor.com/): 24/7 synthetic monitoring of websites, web applications, APIs and servers with alerts.
- [LoadView](https://www.loadview-testing.com/): cloud load testing with real browsers.
- [Pricing](https://wwwnew.dotcom-tools.com/pricing): free daily testing, paid plans (Small $19.99, Medium $69.99, Large $149.99 a month) and OnDemand credit packs from $10.
- [About Dotcom-Tools](https://wwwnew.dotcom-tools.com/company): who makes Dotcom-Tools (Dotcom-Monitor) and the product family.