BLUF

bluf.ai ↗

AI browser extension that summarizes and explains web pages, PDFs, and YouTube videos.

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SI Score: 80/100
Pricing: Not confirmed
Free plan: Not confirmed
Sign-up required: Not confirmed

Ask SI about BLUF

Answers use saved listing facts and recorded sources.

Homepage screenshot

SI REVIEWBased on the site's own pages, in a directory managed by people

What it does

BLUF is an AI-powered browser extension for Chrome and Firefox. It summarizes and explains content from websites, PDFs, YouTube videos, and local files. It can answer follow-up questions. It has free and paid plans. Contact is [email protected].

Best for

Summarizing websites, PDFs, and YouTube videosExplaining complex documentsAsking follow-up questions about contentReading local files

SI Score

80/100

#1 in Research & Data Analysis

Based on published information. No hands-on task test.

Method 2.0 · Published source review Assessed Oct 28, 2026Score ceiling for this evidence: 84/100.

Product usefulness 80

Evidence

BLUF documents opening content, activating the extension, choosing summarize or explain and asking follow-up questions. Free prompt and per-page word limits, plus guidance to select a smaller passage, bound processing. This supports80 for assisted reading; browser availability follows the narrower Chrome/Firefox FAQ and summary accuracy is untested.

Limits: Source-researched AI assessment reviewed by a separate native AI worker. No hands-on product test or human verification is claimed.

Source links and check dates are in Sources and checks below.

Separate website checks

These checks do not add points to the SI Score. They inspect the website's HTML, not the product in use.

Basic website checks80/100

HTTPS: yes
Homepage answered with HTTP 200
Privacy policy link: found
Terms link: not found
Contact or about page: found

We check that these pages exist, not what they say. Ownership and company details are not verified.

Checked Oct 18, 2026.

HTML accessibility checks60/100

Page language set: no
Mobile viewport: yes
Images with a text alternative: 3 of 7
Main heading (h1): yes

Automated checks on the homepage HTML only. This is not a full accessibility audit.

Checked Oct 18, 2026.

Homepage HTML response100/100

First byte after 134 ms
Homepage HTML loaded in 0.2 s
HTML size 42 KB

Measured once from our server. Images, scripts and your own connection are not included.

Checked Oct 18, 2026.

Trackers in homepage HTML88/100

Third-party trackers in the homepage code: Google Tag Manager

Only the homepage HTML is checked. Trackers loaded later by scripts, and what the service does with your data, are not covered.

Checked Oct 18, 2026.

Page date hintsunknown

No copyright year found on the page.
Server says last modified: Thu, 23 Jan 2025 01:18:34 GMT

Unknown. The page gives no date we can rely on.

Checked Oct 18, 2026.

Policy links do not verify a company's conduct. An HTML response time is not application speed. Tracker and accessibility checks miss behavior after page load. Copyright dates do not prove product upkeep.

How the SI Score works →

Unconfirmed details may be unassessed, absent from the pages checked or temporarily unreadable. A missing price does not mean the service is free.

Sources and checks

Supporting pages for product usefulness, site facts, prices and separate website checks. Each record keeps its own date. Reading a page does not establish how well the product performs in use.

bluf.ai/
- Product usefulness evidence
- Basic website checks (separate check)Checked Oct 18, 2026
- HTML accessibility checks (separate check)Checked Oct 18, 2026
- Homepage HTML response (separate check)Checked Oct 18, 2026
- Trackers in homepage HTML (separate check)Checked Oct 18, 2026
- Page date hints (separate check)Checked Oct 18, 2026
bluf.ai/privacy
- Basic website checks (separate check)Checked Oct 18, 2026

Checks without a source link

PricingUnknownChecked Oct 18, 2026
Free planUnknownChecked Oct 18, 2026
Sign-up requiredUnknownChecked Oct 18, 2026
PlatformsUnknownChecked Oct 18, 2026
APIUnknownChecked Oct 18, 2026
Open sourceUnknownChecked Oct 18, 2026

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