Top rated sites
The highest SI Scores across the directory, based on the same published scoring rules.
Semrush Academy
semrush.comCourses and webinars on marketing and Semrush workflows.
Send
github.comA community-maintained successor to Firefox Send for self-hosting
SendFileOnline
sendfileonline.comCode-based downloads with optional direct peer-to-peer delivery
SendFox
sendfox.comCreator newsletters with welcome sequences and content-fed campaign drafts
SendGB
sendgb.comLink-based file sending with configurable retention
Sendible
sendible.comClient social workspaces with bulk scheduling and shared reporting
Sendloop
sendloop.comNewsletters, RSS updates and automated journeys priced by sending volume
SendPulse
sendpulse.comEmail campaigns and automation within a wider messaging workspace
SendSafely Email Encryption
sendsafely.comEncrypted attachments and messages within Outlook and Gmail
SendX
sendx.ioCampaign automation with mailbox-provider diagnostics and separate transactional capacity
Seneca
senecalearning.comInteractive revision courses organised around school subjects and exam boards.
Sensical
sensical.tvAge-based children's video with parent-set viewing limits
Sensor Tower
sensortower.comResearch app, advertising and web markets using modeled digital-intelligence datasets.
SEO Content Machine
seocontentmachine.comDesktop SEO workspace that plans pages from your site and Search Console data.
SEO DIVER
de.seodiver.comResearch keyword seasonality, inspect page details and compare backlink sources in a free toolset.
SEO Manager
venntov.comMaintain Shopify metadata, structured data and broken-link redirects.
SEO META in 1 CLICK
seo-extension.comRead a page's metadata, heading order, link counts and image-alt coverage in Chrome.
SEO PowerSuite
link-assistant.comDesktop SEO tools for rankings, site audits, backlinks and outreach research.
SEO Pro Extension by MarketingSyrup
marketingsyrup.comInspect a page's metadata, headings, links, schema and response behavior from a browser extension.
SEO Site Checkup
seositecheckup.comInspect technical page issues, group domain findings and monitor search or AI-brand visibility.
SEO Tester Online
seotesteronline.comInvestigate pages, keywords and competitors with technical and content SEO tools.
SEO Utils
seoutils.appRun SEO research, keyword clustering and monitoring from a desktop application.