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Eloquent JavaScript VS IsItIndexed

Compare Eloquent JavaScript VS IsItIndexed and see what are their differences

EJS
Eloquent JavaScript

Free ebook for the JS Beginners

Rating
0 reviews
Pricing
Open source
Alternatives Is it good?
IsItIndexed

Diagnose why Google won't index your page. Checks robots.txt, canonicals, content quality, sitemaps, and AI visibility in one scan. No account needed.

Rating
0 reviews
Pricing
Free $4.99 / One-off (Full Report (13 checks))
Alternatives Is it good?
warmup.rocks
warmup.rocks keeps your CDN cache warm in every edge location worldwide: Cloudflare, Fastly, Akamai, CloudFront and more. Warming from 42 countries, hit-ratio analytics. sponsored
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Based on our record, Eloquent JavaScript seems to be more popular. It has been mentioned 218 times since March 2021.

social mentions
218 vs 0
Text Editors popularity
100% vs 0%
alternatives listed
124 vs 26

Base details

Website, pricing, platforms and company facts side by side.

EJS
Eloquent JavaScript
IsItIndexed
Website eloquentjavascript.net isitindexed.com
Pricing
Open source
Free $4.99 / One-off (Full Report (13 checks)) Official pricing
Listed in
Software Development Text Editors Programming Tools Developer Tools +1
SEO SEO Tools SEO Auditing Website Indexing +1

Features and specs

What each product offers, as listed by its team.

EJS
Eloquent JavaScript 5 features
IsItIndexed 3 features
  • Comprehensive Learning Resource
    Eloquent JavaScript covers a wide range of topics, from basic syntax to advanced concepts like asynchronous programming and web development. This depth makes it a valuable resource for both beginners and advanced programmers.
  • Interactive Code Examples
    The book contains numerous interactive code examples that allow readers to see the effects of their code in real-time. This hands-on approach reinforces learning and helps solidify concepts.
  • Free Online Access
    Eloquent JavaScript is available for free online, making it accessible to anyone with an internet connection. This allows learners from around the world to benefit from its content without financial barriers.
  • Engaging Writing Style
    The author, Marijn Haverbeke, writes in an engaging and clear style, making complex topics more understandable and keeping readers interested.
  • Good Balance of Theory and Practice
    The book strikes a good balance between theoretical explanations and practical exercises, allowing readers to apply what they have learned immediately.

Possible disadvantages

  • Steep Learning Curve
    Some readers may find the book's progression to be rapid, especially if they are complete beginners. The book quickly moves from basic to more complex topics, which can be overwhelming.
  • Lacks Visual Aids
    While the text is clear and the code examples are helpful, the book could benefit from more visual aids like diagrams and illustrations to explain complex concepts.
  • Assumes Some Prior Knowledge
    Although it's aimed at beginners, the book sometimes assumes that readers have some prior programming experience, which can make it less accessible to absolute novices.
  • Limited Coverage of Latest ES Features
    The book may not cover some of the latest features and best practices introduced in newer versions of JavaScript (e.g., ES2019 and beyond), meaning readers might need to supplement their learning with additional resources.
  • Web Development Sections Could Be More Detailed
    While the book does touch on web development, the sections on this topic are not as in-depth as some readers might hope. Those looking to get a more thorough grounding in web development may need to consult other sources.
  • User-Friendly Interface
    IsItIndexed offers a clean and simple interface that makes it easy for users to quickly check whether a webpage is indexed by search engines. This accessibility ensures that even those with limited technical knowledge can use the tool effectively.
  • Fast Results
    The tool provides rapid results, allowing users to instantly know the indexing status of their pages without having to wait for long processing times.
  • Multiple URL Checks
    IsItIndexed allows users to check multiple URLs in a single session, streamlining the process for those who need to check the indexing status of several pages at once.

Possible disadvantages

  • Limited Search Engine Support
    The tool may only support a limited number of search engines, potentially excluding smaller or regional search engines, which could be a drawback for users targeting a broader audience.
  • No Additional SEO Insights
    IsItIndexed is primarily focused on checking the indexing status, without providing additional SEO insights or recommendations, which could be a limitation for users seeking comprehensive SEO analysis.
  • Dependence on API Availability
    The accuracy and reliability of IsItIndexed depend on the availability and stability of external search engine APIs, which could occasionally lead to inconsistencies or downtime.

Analysis

An editorial look at what each product does well and who it suits.

EJS
Eloquent JavaScript
IsItIndexed

Overall verdict

  • Yes, Eloquent JavaScript is considered a good and valuable resource for learning JavaScript. It effectively balances theory with practical application, making it a popular choice among students and developers wishing to deepen their understanding of the language.

Why this product is good

  • Eloquent JavaScript is widely regarded as a strong resource for learning JavaScript due to its comprehensive coverage of both fundamental and advanced concepts. It is praised for its clear explanations, practical examples, and engaging writing style, which help readers understand complex topics. Its focus on best practices and problem-solving skills makes it a valuable reference for both beginners and experienced developers.

Recommended for

  • Beginners looking for a solid introduction to JavaScript
  • Intermediate developers seeking to reinforce their knowledge
  • Experienced programmers wanting to explore more advanced JavaScript topics
  • Anyone interested in functional programming concepts
  • Developers aiming to improve their problem-solving skills in JavaScript

Overall verdict

  • IsItIndexed is a simple, free tool that quickly checks whether a specific URL or page has been indexed by Google, making it a handy utility for quick spot-checks despite its limited feature set.

Why this product is good

  • It's free and requires no signup, so you can check a URL instantly
  • Extremely simple and easy to use with a minimal interface
  • Provides a fast answer on whether a page appears in Google's index
  • Useful as a quick sanity check during SEO or publishing workflows

Recommended for

  • Bloggers and content creators verifying that new posts have been indexed
  • SEO beginners who want a quick, no-frills indexing check
  • Webmasters doing occasional spot-checks on individual URLs
  • Anyone needing a fast, free alternative to manual site: searches in Google

Videos

Walkthroughs and reviews on video.

EJS
Eloquent JavaScript 3 videos + Add
IsItIndexed 0 videos + Add

Eloquent JavaScript A Modern Introduction to Programming 3rd Edition by Marijn Haverbeke review

More videos

  • - Eloquent JavaScript review
  • - Book Review: Eloquent Javascript by Marijn Haverbeke

No IsItIndexed videos yet. You could help us improve this page by suggesting one.

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
EJS
Eloquent JavaScript
IsItIndexed
100% 100%
Text Editors
0% 0%
0% 0%
SEO Tools
100% 100%
100% 100%
Developer Tools
0% 0%
0% 0%
SEO
100% 100%

Questions & Answers

As answered by people managing Eloquent JavaScript and IsItIndexed.

What makes your product unique?

IsItIndexed's answer:

Most SEO tools tell you whether a page is indexed. That's a yes/no answer, and if you already know your page isn't indexed, it tells you nothing. IsItIndexed runs 13 diagnostic checks to figure out why Google won't index your page and what to fix first. It also checks whether AI platforms like ChatGPT, Claude, and Perplexity can find and cite your content. No other single-URL tool combines Google indexability diagnostics with AI visibility checks.

Why should a person choose your product over its competitors?

IsItIndexed's answer:

  • No account, no signup, no monthly subscription
  • Paste a URL and get a prioritized report in seconds
  • Free scan covers 4 technical checks
  • Full report is a one-time $4.99 and covers content quality, structured data, page speed, sitemaps, and three AI visibility checks that no competing tool offers
  • SEO agencies charge $500+ for audits covering similar ground
  • The cheapest monthly tools start at $50

How would you describe the primary audience of your product?

IsItIndexed's answer:

Site owners, solo founders, bloggers, and freelance SEOs who are stuck in "Crawled, currently not indexed" limbo in Google Search Console. People who know something is wrong but don't have an SEO team to diagnose it. Also useful for anyone who wants to check whether AI search engines can actually find their content.

What's the story behind your product?

IsItIndexed's answer:

Google's June 2025 core update pruned an estimated 15-20% of the index. More pages than ever are stuck in "crawled but not indexed" and existing tools only check whether you're indexed, not why. At the same time, AI crawlers showed up and nobody had tooling to check visibility across those platforms either. I built IsItIndexed to close both gaps in one scan.

Which are the primary technologies used for building your product?

IsItIndexed's answer:

  • Next.js and TypeScript on the frontend
  • Cheerio for HTML parsing
  • All 13 diagnostic checks are rule-based with no LLM anywhere in the pipeline
  • Supabase for report storage
  • Stripe for payments
  • Hosted on Vercel

User comments

Share your experience with using Eloquent JavaScript and IsItIndexed. For example, how are they different and which one is better?

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Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

EJS
Eloquent JavaScript 218 mentions
IsItIndexed 0 mentions
  • My Azure Cloud Resume Challenge Journey
    If you haven’t read Eloquent JavaScript , go check it out. It’s one of my all-time favourite programming books — hands down. - Source: dev.to / about 1 year ago
  • How do we learn to get good at programming
    Videos, blogs, text-based teachings, YouTube project-based learning, books, and the like are all examples of various methods and mediums of acquiring skills, especially in the software engineering industry. As I continue to navigate... - Source: dev.to / almost 2 years ago
  • Ask HN: Changing my mind about JavaScript
    Seconded. I won't recommend it and no one I know has recommended it for a decade. It's hard for someone who doesn't know JS to know which parts has changed and is no longer the way to do things. https://github.com/getify/You-Dont-Know-JS... - Source: Hacker News / about 2 years ago

View more

Tracking IsItIndexed since Mar 2026.

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