A free online tool that scans webpages for dead hyperlinks. It checks internal and external URLs, reports the location of bad links in HTML code, shows 404 errors and other unsuccessful HTTP response codes, and supports sub-domains. The free version limits checks to 3,000 pages and allows one running session per IP address; documents and images are not checked.
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Pingdom's free Website Speed Test analyzes a webpage's load time and identifies bottlenecks. A full page test breaks requests into stages such as DNS lookup, SSL handshake, connect, send, wait, receive and blocked, and flags redirects and 4xx or 5xx responses. Pingdom also offers uptime and performance monitoring from more than 70 global polling locations.
searx.space is a directory of online and offline SearXNG instances. The site lists 70 currently online SearXNG instances, and tracks instance status including offline, connection timed out, HTTP client and server errors. For each listed instance, it displays details such as URL, software version, TLS configuration, security scores, certificate information, IPv6 support, country, associated network, search response times and uptime. Users can submit requests to add or remove instances via GitHub issues, and can filter out networks with known privacy issues.
spys.one publishes a live list of free public proxy servers, covering HTTP, HTTPS with SSL support, and SOCKS proxies. Entries include proxy address and port, proxy type, anonymity level, country and city, hostname or organization, latency, relative speed, uptime and last check time. It also offers proxy lists by country, anonymity, ASN or organization, city and port.
UHostAll.com offers free web hosting with features such as unlimited space and bandwidth, instant activation, no forced ads, SSL, and MySQL databases. It describes professional PHP and MySQL hosting powered by clustered technology, with servers using 1 Gbps connections. It also lists paid hosting, support tickets, and a 99% uptime guarantee.
UpDownToday checks website availability, outages, broken links, or service status from the web.
WhatPulse is software that measures computer usage, tracking keystrokes, mouse clicks, application usage, websites, uptime and bandwidth. It is available for Windows, macOS and Linux, and the publisher states it tracks activity but never content. A free plan is offered without a credit card.
Who.is is a domain and IP information lookup service. It offers WHOIS and RDAP lookups, DNS records, nameserver lookup, IP address lookup, domain history and uptime checks. Premium offerings include downloadable domain history reports, website monitoring for up to 10 domains and API access providing parsed WHOIS, RDAP, DNS and TLS certificate data as JSON over HTTPS, with a free tier.