Bulk-opening an unreviewed list is risky because a hyperlink can invoke more than a web page. The characters before the first colon identify the URL scheme and often determine what application or browser behavior will run.
Web links
https: is the normal choice for public web pages. http: is still a web link, but traffic is not encrypted and may be redirected. When reviewing an HTTP link, confirm the destination and prefer the site's HTTPS canonical address when available.
Communication actions
mailto: can open an email client and may prefill recipients, subjects, or body text. tel: and sms: can start communication flows on mobile devices. Keep these in a separate action list rather than mixing them with pages to crawl.
Local and embedded data
file: points to a local or network file location and generally has no portable meaning for another user. data: embeds content directly in the URL and can be extremely long. Neither belongs in a routine public-page inventory.
Executable or application-specific schemes
javascript: can execute code in a page context and should be rejected by an extraction tool. Custom schemes may launch installed applications. Treat an unfamiliar scheme as untrusted until you know which application owns it and what parameters it accepts.
Before using Open All
- Filter the list to HTTP and HTTPS.
- Check for lookalike domains and unexpected internationalized hostnames.
- Remove login, invitation, checkout, and password-reset links.
- Open a few unfamiliar domains individually first.
- Keep browser popup protection enabled.
- Use a malware or reputation service when your organization requires it.
URL Extractor lists links found in pasted content; that does not certify the destinations as safe. Scheme filtering and domain review should happen before any bulk action, especially when the source came from email, chat, or an unknown document.