writewithharper.com Traffic, Rankings, Analytics & Tech Stack

Security grade

F (20/100)

TTFB

1,253 ms

Page size

95 KB

Third-party hosts

1

Compression

Brotli

Web flags

IndexableMobile-friendlyCanonicalSocial cardPWA

Security headers

Schema.org types

OfferPersonSoftwareApplication

Word count

~816

Currencies

USD

Key pages

About

Niches / topics

EnglishGrammarOpen SourceWriting

Language

English

Cert expires

Aug 5, 2026

Mobile apps

SaaS DNS verifications

Google Search Console

Blocked bots (robots.txt)

Meta title

Harper | Privacy-First Offline Grammar Checker for Developers & Writers

Meta description

Harper is a blazing-fast, open-source grammar & spell checker that runs entirely on your device, covering US, UK, Canadian, Australian & Indian English—no data ever leaves your machine. Harper is the only grammar checker that doesn't use AI.

Meta keywords

Harper, grammar checker, spell checker, privacy-first, offline, open source, fast grammar tool, developer writing, markdown checker

See all competitors and sites like writewithharper.com →

writing.support26,465 visits/mo · DR 12Academic, Animation, Englishbelikenative.com22,721 visits/mo · DR 38English, Grammar, Writingwhitesmoke.com21,156 visits/mo · DR 62English, Grammar, Languagegrammar-island.com20,805 visits/mo · DR 0.4Activities, English, Gamesgetitwriteonline.com20,641 visits/mo · DR 43English, Grammar, Writing