Version 2.0.0: full rewrite

NEW
- AI Search tab: checks how AI search products and assistants can find, read and cite a page.
- AI crawler access: whether robots.txt lets 16 AI crawlers (OpenAI, Anthropic, Perplexity, Google, Apple and others) fetch the page, labeled as AI search, user request, or training.
- llms.txt: detects and validates /llms.txt and /llms-full.txt.
- Snippet and preview controls: nosnippet, max-snippet, data-nosnippet, noindex and similar.
- Raw HTML vs rendered page: finds content, titles and structured data that only exist after JavaScript runs.
- Answer readiness: heading structure, question-style headings, concise lead paragraphs, lists and tables, reading ease.
- Entity and trust signals: schema types, sameAs links, author, publish and modified dates.
- Structured data card now lists the entities found (JSON-LD and microdata).
- Light and dark mode, following your system setting.
- Tooltips on the info icons.

IMPROVED
- New interface built on Bootstrap.
- Domain age now comes from the domain's public RDAP record instead of scraping a WHOIS web page.
- Broken-link checker rewritten: checks several links at once, shows progress, separates broken links from unreachable servers and servers that refuse automated requests, and skips links that look like one-click actions (unsubscribe, logout, delete and similar).
- "Highlight nofollow links" is now a button you can switch off. Version 1 outlined links on the page with no way to remove it.
- Google and Bing indexed-page counts only run when you click the button. If a result page can't be read, the extension now says so instead of claiming the page isn't indexed.
- "Last crawled" moved into the Indexed Pages card.
- Heading lists now appear in page order. Nested microdata is shown correctly.
- Image alt checks now separate images with no alt attribute from decorative images with an empty one.
- Keyword phrases of two or more words must repeat to be listed.

PRIVACY AND PERMISSIONS
- Requests fewer permissions than version 1. Removed the "tabs" permission and the permanent access to all websites. The extension now uses "activeTab" (only the page you opened it on) and "scripting".
- Access to other sites is requested only when you click a feature that needs it: the link checker, and the Google and Bing check.
- The link checker no longer sends your links through a third-party proxy.
- Page content is never interpreted as HTML in the extension's interface.
- Nothing is stored and there is no analytics. Data sent to other services is listed in the About tab.

NOTES
- Requires Firefox 140 or later.
- Counts differ slightly from version 1: in-page anchors (#), mailto:, tel: and javascript: links are no longer counted as links.

Minor update:
-fix Google cache date not showing
-fix relative image URLs
-added image previews