Bookmarks & Web Archiving · Reviewed 22 Oct 2026

Diigo

Diigo is a research tool for bookmarking, annotating, and archiving web content.

from $10 · free tier · diigo.com ↗

Paid against free › Bookmarks & Web Archiving › Diigo

Diigo at a glance

Overview

01

Summary

The useful answer before the supporting detail.

Diigo is a multi-tool for personal knowledge management that helps users bookmark, annotate, and archive web content S1. It is used by researchers, students, and professionals who need to manage large amounts of online information S1. Diigo solves the problem of lost or broken links by storing resources with annotations intact, accessible from anywhere S1 S24.

02

Product identity and positioning

Name, category, positioning, audience, and first-party claims.

  • Identity: Diigo is a web-based bookmarking and annotation tool for personal knowledge management S1.
  • Core purpose: It streamlines the information workflow from browsing and reading to annotating, storing, and sharing S1.
  • Intended users: Researchers, students, teachers, and professionals who consume lots of online information S1.
  • Product scope: A multi-tool that includes bookmarking, highlighting, sticky notes, archiving, and outliner features S24.
  • Positioning: Diigo positions itself as a powerful research tool and knowledge-sharing community S24.
  • Claimed distinction: It claims to preserve online resources with annotations forever, even if the original source disappears S24.
03

Use cases and audiences

Who the product serves and the jobs it is designed to handle.

AudiencePractical use case
ResearchersCollect and annotate sources for papers, keeping them accessible even if original pages change S1.
StudentsHighlight and organize study materials, and share notes with classmates S1 S24.
TeachersCurate and share educational resources with students S1.
Marketing agenciesTrack and annotate competitor content and industry articles for client research S1.
ConsultantsBuild a structured knowledge base of client-related information and insights S1.
Web designersSave and annotate design inspiration and reference materials S1.

Features

09

Features and capabilities

Core functions and evidence-backed product capabilities.

CapabilityWhat it does
BookmarkingSave and tag web pages for easy retrieval anytime, anywhere S24.
Web annotationHighlight text and add sticky notes directly on any web page S24 S1.
ArchivingStore online resources with annotations intact, even if the original source is no longer active S24.
OutlinerOrganize links, references, and personal input into a structured research base S24.
CollaborationShare research with colleagues and classmates through a collaborative platform S24.
Team featuresEnable collaborative web and PDF annotation within teams S33.
Kindle importImport Kindle highlights and notes into Diigo S33.
Export libraryExport your entire Diigo library S38.
10

Integrations and ecosystem

Connected products, exports, APIs, and workflow compatibility.

Integration or interfaceTypeWhat it enables
DiigoletBrowser extensionA bookmarklet that can be dragged to the favorites bar for quick saving and annotation S38.
Diigo ToolbarBrowser extensionProvides toolbar access to Diigo features and receives automatic updates S50.
Kindle importData importAllows importing Kindle highlights and notes into Diigo S33.
Export libraryData exportEnables exporting the entire Diigo library S38.
Google AnalyticsAnalytics integrationUsed for usage analysis, such as how many users access certain features S50.

Pricing

11

Pricing and plans

Published plans, free access, trials, credits, and pricing limitations.

Plan or offerVerified price and billingIncludedLimits
Free$0Basic bookmarking and annotation with ads S33500 bookmarks and 100 highlights per lifetime S33
Standard$40/year, billed yearly S33Unlimited cached pages S33No PDF storage or outliners S33
Professional$59/year, billed yearly S33Unlimited cached pages, unlimited PDF storage, outliners S33Not established
Business$10/month, billed monthly S33Team library, shared annotation, admin console S33Not established

Competition

12

Competitive landscape

Domains competing for the same organic search demand.

Sampled competitors

CompetitorFirst-page appearancesSampled queriesAverage positionQueries observed
youtube.com423.5digo, diigo
music.apple.com213.5digo
facebook.com225digo, diigo
play.google.com215.5digo
toptools4learning.com114diigo
music.amazon.in116digo

Website intelligence — Collected evidence

Customers, testimonials, and first-party review claims

Independent review sources discovered

No links to supported independent review platforms were discovered on the collected pages.

13

AI visibility

Measured ChatGPT and Google AI mentions with cited sources.

AI-assistant referral traffic

  • Estimated current generative-AI referral share: 0.8%
MonthSource
—All AI assistants

Website intelligence — Collected evidence

Site-stated AI capabilities

No supporting public-page evidence was collected for this category.

These are first-party product claims, not independent measurements of AI-search visibility.

14

Marketing opportunities

Actions calculated directly from the collected evidence.

OpportunityRecommended actionEvidence
Striking-distance keywordVolume 70 · https://www.diigo.com/list/blackforests/torchwood-fanfiction
Important pagehttps://groups.diigo.com/group/fitabtiri/content/256-signos-ifa-10654829 · 3 sampled keywords · best position 4
Competitor gap4 first-page appearances across digo, diigo

Website intelligence — Collected evidence

Website evidence gaps

  • pricing: no usable public page was collected; verify whether the site publishes this evidence.
  • features: no usable public page was collected; verify whether the site publishes this evidence.
  • reviews: no usable public page was collected; verify whether the site publishes this evidence.
  • changes: no usable public page was collected; verify whether the site publishes this evidence.
  • technical: no usable public page was collected; verify whether the site publishes this evidence.

Trust and proof

15

Customers, proof, and reviews

Published proof, customer signals, and review evidence.

Independent reviews

PlatformPageHow it was foundNote
G2Compare Diigo and Pocket Social Share OptionsGrounded web searchDiigo(10)4.3 out of 5Diigo By Diigo ... Mid-Market (50.0% of reviews) ... Meets Requirements ... 8.8 ... 7 ... Ease of Use ... 8.1 ... 7 ... Ease of Setup ... Ease of Admin ... Quality of Support ... 8.0 ... 5 ... All browsers supported and acces content on all devices. allows Sort and classifies favorite sites, images and notes easily, you can add sites to the library in a few clicks. It can be organized by custom tags. you can save fragments to use them without... Most Helpful Critical Review

Customer proof

No named customers, testimonials, or customer case studies were found.

External links were grounded in one live web search. Search snippets are leads, not independently scraped page content; rejected links remain available in Review evidence.

16

Company, security, and trust

Ownership, policies, security signals, and public trust evidence.

SignalFindingSource
Company and ownershipStill have needs of working with information not met? Well, stay tuned, or better yet, let us know! Our team at Diigo is dedicated tosource
Contact and supportPlease contact us at info@diigo.com with any questions regarding our privacy policy.source
Legal and privacyDiigo.com Privacy Policysource
Security and complianceNot published on the collected pages.—
Uptime and status pageNot published on the collected pages.—
Domain registered2004-12-22—
Domain expires2029-12-22—

Not found on the collected pages: security and compliance, uptime and status page. This only means Scout did not find it on the pages it read; it says nothing about the company itself.

17

Documentation and product updates

Help resources, product guidance, and visible changes over time.

Resource or updateTypeWhat is availableDate or freshness
Contact and supportSupportPublic contact and support channel. (source)Not dated

Not found in the collected public sources: public roadmap, changelog or release notes, status page, separate help center or knowledge base.

Technical

18

Technical and delivery signals

Delivery model, platforms, API, data ownership, reliability claims and release activity.

SignalFindingSource
Delivery model (cloud, self-hosted, desktop, browser extension)Diigo is a cloud-based service with browser extensions and a bookmarklet S1 S38 S49.S1
Platforms and appsThe Diigo Toolbar is compatible with Chrome, Firefox, IE, and Safari S49.S49
API and extensibility (API, SDK, webhooks, MCP, plugins)Not published on the collected pages.—
Data ownership and exportUsers can export their library S38.S38
Performance and reliability claimsDiigo claims to preserve resources forever, but no specific performance or uptime metrics are provided S24.S24
Release activityThe Diigo Toolbar contacts servers periodically for automatic updates S50.S50
19

Measured infrastructure

Domain, certificate, and hosting signals, measured directly.

SignalFinding
Domain registered2004-12-22 — GoDaddy.com, LLC
Domain expires2029-12-22
First archived2005-09-24 — web archive
TLS certificateGoogle Trust Services, valid, expires 2026-12-31
Security headersCSP, X-Content-Type-Options, X-Frame-Options, Referrer-Policy
Headers not servedHSTS
Server headercloudflare
Mail handled byASPMX.L.GOOGLE.com, ALT1.ASPMX.L.GOOGLE.com
Nameserverskarsyn.ns.cloudflare.com, wilson.ns.cloudflare.com

Not measurable: rdap: exceeded the overall budget; wayback: exceeded the overall budget; tls: exceeded the overall budget; dns: exceeded the overall budget; headers: exceeded the overall budget. A gap here means the lookup was unavailable, not that the finding is negative.

20

Technical site audit

A bounded multi-page crawl with page-level issues and URLs.

Scout — Bounded technical crawl

  • Pages crawled: 15 of 15 maximum
  • Technical health: 80/100
  • Critical issues: 0
  • Warnings: 52
  • Notices: 18

Issues

SeverityIssueValueAffected URL
warningTitle length should be reviewed110https://www.diigo.com/
warningPage should have one primary H10https://www.diigo.com/
warningMissing canonical URL—https://www.diigo.com/
noticeImages are missing alt text5https://www.diigo.com/
warningTitle length should be reviewed110https://www.diigo.com/
warningPage should have one primary H10https://www.diigo.com/
warningMissing canonical URL—https://www.diigo.com/
noticeImages are missing alt text5https://www.diigo.com/
warningMissing meta description—https://www.diigo.com/tools
warningPage should have one primary H10https://www.diigo.com/tools
warningMissing canonical URL—https://www.diigo.com/tools
noticeImages are missing alt text7https://www.diigo.com/tools
warningMissing meta description—https://www.diigo.com/sign-in
warningPage should have one primary H10https://www.diigo.com/sign-in
warningMissing canonical URL—https://www.diigo.com/sign-in
noticeLow visible word count67https://www.diigo.com/sign-in
noticeImages are missing alt text2https://www.diigo.com/sign-in
warningMissing meta description—https://www.diigo.com/premium
warningPage should have one primary H10https://www.diigo.com/premium
warningMissing canonical URL—https://www.diigo.com/premium
noticeLow visible word count0https://www.diigo.com/premium
noticeImages are missing alt text1https://www.diigo.com/premium
warningMissing meta description—https://www.diigo.com/about
warningMissing canonical URL—https://www.diigo.com/about
noticeImages are missing alt text1https://www.diigo.com/about
warningMissing meta description—https://www.diigo.com/premium
warningPage should have one primary H10https://www.diigo.com/premium
warningMissing canonical URL—https://www.diigo.com/premium
noticeLow visible word count0https://www.diigo.com/premium
noticeImages are missing alt text1https://www.diigo.com/premium
warningMissing meta description—https://www.diigo.com/terms
warningMissing canonical URL—https://www.diigo.com/terms
warningMissing meta description—https://www.diigo.com/privacy
warningMissing canonical URL—https://www.diigo.com/privacy
warningMissing meta description—https://www.diigo.com/common/contact
warningMissing canonical URL—https://www.diigo.com/common/contact
noticeLow visible word count96https://www.diigo.com/common/contact
warningTitle length should be reviewed110https://www.diigo.com/index
warningPage should have one primary H10https://www.diigo.com/index
warningMissing canonical URL—https://www.diigo.com/index
noticeImages are missing alt text5https://www.diigo.com/index
warningMissing meta description—https://www.diigo.com/sign-in?referInfo=https%3A%2F%2Fwww.diigo.com%2Faggregation
warningPage should have one primary H10https://www.diigo.com/sign-in?referInfo=https%3A%2F%2Fwww.diigo.com%2Faggregation
warningMissing canonical URL—https://www.diigo.com/sign-in?referInfo=https%3A%2F%2Fwww.diigo.com%2Faggregation
noticeLow visible word count67https://www.diigo.com/sign-in?referInfo=https%3A%2F%2Fwww.diigo.com%2Faggregation
noticeImages are missing alt text2https://www.diigo.com/sign-in?referInfo=https%3A%2F%2Fwww.diigo.com%2Faggregation
warningMissing meta description—https://www.diigo.com/sign-in?referInfo=https%3A%2F%2Fwww.diigo.com%2Ftools%2Fpost_by_email
warningPage should have one primary H10https://www.diigo.com/sign-in?referInfo=https%3A%2F%2Fwww.diigo.com%2Ftools%2Fpost_by_email
warningMissing canonical URL—https://www.diigo.com/sign-in?referInfo=https%3A%2F%2Fwww.diigo.com%2Ftools%2Fpost_by_email
noticeLow visible word count67https://www.diigo.com/sign-in?referInfo=https%3A%2F%2Fwww.diigo.com%2Ftools%2Fpost_by_email
noticeImages are missing alt text2https://www.diigo.com/sign-in?referInfo=https%3A%2F%2Fwww.diigo.com%2Ftools%2Fpost_by_email
warningMissing meta description—https://www.diigo.com/tools/import_all
warningMissing canonical URL—https://www.diigo.com/tools/import_all
warningMissing meta description—https://www.diigo.com/sign-in?referInfo=https%3A%2F%2Fwww.diigo.com%2Fimport_all%2Fkindle
warningPage should have one primary H10https://www.diigo.com/sign-in?referInfo=https%3A%2F%2Fwww.diigo.com%2Fimport_all%2Fkindle
warningMissing canonical URL—https://www.diigo.com/sign-in?referInfo=https%3A%2F%2Fwww.diigo.com%2Fimport_all%2Fkindle
noticeLow visible word count67https://www.diigo.com/sign-in?referInfo=https%3A%2F%2Fwww.diigo.com%2Fimport_all%2Fkindle
noticeImages are missing alt text2https://www.diigo.com/sign-in?referInfo=https%3A%2F%2Fwww.diigo.com%2Fimport_all%2Fkindle
warningDuplicate title in audit sample3https://www.diigo.com/
warningDuplicate title in audit sample3https://www.diigo.com/
warningDuplicate title in audit sample3https://www.diigo.com/index
warningDuplicate title in audit sample4https://www.diigo.com/sign-in
warningDuplicate title in audit sample4https://www.diigo.com/sign-in?referInfo=https%3A%2F%2Fwww.diigo.com%2Faggregation
warningDuplicate title in audit sample4https://www.diigo.com/sign-in?referInfo=https%3A%2F%2Fwww.diigo.com%2Ftools%2Fpost_by_email
warningDuplicate title in audit sample4https://www.diigo.com/sign-in?referInfo=https%3A%2F%2Fwww.diigo.com%2Fimport_all%2Fkindle
warningDuplicate title in audit sample2https://www.diigo.com/premium
warningDuplicate title in audit sample2https://www.diigo.com/premium
warningDuplicate meta description in audit sample3https://www.diigo.com/
warningDuplicate meta description in audit sample3https://www.diigo.com/
warningDuplicate meta description in audit sample3https://www.diigo.com/index

Crawled pages

StatusTitleH1sWordsResponseURL
200Diigo - Better reading and research with annotation, highlighter, sticky notes, archiving, bookmarking & more.022134 mshttps://www.diigo.com/
200Diigo - Better reading and research with annotation, highlighter, sticky notes, archiving, bookmarking & more.022124 mshttps://www.diigo.com/
200Tools - Diigo01977 mshttps://www.diigo.com/tools
200Sign in to Diigo \Diigo06726 ms
200https://www.diigo.com007 mshttps://www.diigo.com/premium
200About Diigo \Diigo195012 ms
200https://www.diigo.com008 mshttps://www.diigo.com/premium
200Diigo.com Terms of Use Agreement1339714 mshttps://www.diigo.com/terms
200Diigo.com Privacy Policy182012 mshttps://www.diigo.com/privacy
200Contact Us \Diigo19610 ms
200Diigo - Better reading and research with annotation, highlighter, sticky notes, archiving, bookmarking & more.022112 mshttps://www.diigo.com/index
200Sign in to Diigo \Diigo06710 ms
200Sign in to Diigo \Diigo06710 ms
200Import bookmarks to Diigo123713 mshttps://www.diigo.com/tools/import_all
200Sign in to Diigo \Diigo06710 ms

This is a bounded Scout crawl. Core Web Vitals and Lighthouse scores are not claimed unless a dedicated performance audit is connected.

21

Search Console and Analytics

First-party search and behavioral data connection state.

Modeled acquisition channels

ChannelEstimated share
direct74.0%
search6.7%
search organic6.5%
search paid0.1%
social10.0%
social organic10.0%
social paid0.0%
referrals7.8%
paid referrals0.0%
mail0.8%
gen ai0.8%
affiliate0.0%
other0.0%

First-party connections

IntegrationStatusData available after connection
Google Search ConsoleNot connectedClicks, impressions, CTR, average position, queries, pages, countries, and devices
Google AnalyticsNot connectedOrganic sessions, engagement, landing pages, conversions, geography, and devices

No first-party Search Console or Analytics numbers are shown until the site owner authorizes the corresponding Google account. Scout traffic model values above are modeled estimates, not private analytics totals.

Limits and method

22

Limitations and open questions

Known constraints and missing evidence from the collected pages.

The collected pages do not mention any competitor products by name. Evidence gaps include lack of detailed customer testimonials, independent reviews, API documentation, and uptime/status information. Open questions remain about the exact capabilities of the free tier beyond bookmark limits and the availability of a mobile app.

23

Sources, method, and limitations

Evidence inventory, collection method, provider use, and constraints.

This report is based on 7 of 8 collected pages from diigo.com, including the homepage, about, premium, tools, contact, terms, and privacy pages. The evidence catalog contains 92 entries, with the majority from the about page and terms of use. External proof search was performed but did not yield additional verified customer or review data. Limitations include missing pages (e.g., blog) and lack of first-party customer case studies.

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