Software Alternatives, Accelerators & Startups

Apache Solr VS Ahrefs

Compare Apache Solr VS Ahrefs and see what are their differences

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Apache Solr logo Apache Solr

Solr is an open source enterprise search server based on Lucene search library, with XML/HTTP and...

Ahrefs logo Ahrefs

Ahrefs is a toolset for SEO and marketing. We have tools for backlink research, organic traffic research, keyword research, content marketing & more. Give Ahrefs a try!
  • Apache Solr Landing page
    Landing page //
    2023-04-28
  • Ahrefs Landing page
    Landing page //
    2023-10-11

Ahrefs is trusted by SEOs and marketing professionals worldwide as the ultimate toolset for SEO, powered by industry-leading data. Ahrefs crawls the web, stores tons of data and makes it easily accessible via a simple user interface. The data can be used to aid keyword research, link building, content marketing and SEO strategies. Ultimately, the tool helps to accelerate the growth of organic search traffic to a website.

Apache Solr features and specs

  • Scalability
    Apache Solr is highly scalable, capable of handling large amounts of data and numerous queries per second. It supports distributed search and indexing, which allows for horizontal scaling by adding more nodes.
  • Flexibility
    Solr provides flexible schema management, allowing for dynamic field definitions and easy handling of various data types. It supports a variety of search query types and can be customized to meet specific search requirements.
  • Rich Feature Set
    Solr comes with a wealth of features out-of-the-box, including faceted search, result highlighting, multi-index search, and advanced filtering capabilities. It also offers robust analytics and joins support.
  • Community and Documentation
    Being an open-source project, Apache Solr has a strong community and comprehensive documentation, which ensures continuous improvements, updates, and extensive support resources for developers.
  • Integrations
    Solr integrates well with a variety of databases and data sources, and it provides REST-like APIs for ease of integration with other applications. It also has strong support for popular programming languages like Java, Python, and Ruby.
  • Performance
    Solr is built on top of Apache Lucene, which provides high performance for searching and indexing. It is optimized for speed and can handle rapid data ingestion and real-time indexing.

Possible disadvantages of Apache Solr

  • Complexity
    The initial setup and configuration of Apache Solr can be complex, particularly for those not already familiar with search engines and indexing concepts. Managing a distributed Solr installation also requires considerable expertise.
  • Resource Intensive
    Running Solr, especially for large datasets, can be resource-intensive in terms of both memory and CPU. It requires careful tuning and adequate hardware to maintain performance.
  • Learning Curve
    The learning curve for Apache Solr can be steep due to its extensive feature set and the complexity of its configuration options. New users may find it challenging to get up to speed quickly.
  • Consistency Issues
    In distributed setups, ensuring data consistency can be challenging, particularly for users unfamiliar with managing clustered environments. There may be delays or issues with synchronizing indexes across multiple nodes.
  • Maintenance
    Ongoing maintenance of a Solr instance, including monitoring, tuning, and scaling, can be labor-intensive. This requires dedicated effort to keep the system running efficiently over time.
  • Limited Real-time Capabilities
    Although Solr provides near real-time indexing, it may not be as effective as some specialized real-time search engines. For applications requiring truly real-time capabilities, additional solutions might be necessary.

Ahrefs features and specs

  • Comprehensive Data
    Ahrefs offers extensive data on backlinks, keywords, and site audits, allowing users to make well-informed decisions on their SEO strategies.
  • User-Friendly Interface
    The platform has an intuitive and easy-to-navigate interface, making it accessible for both beginners and experienced SEO professionals.
  • Accurate Backlink Analysis
    Ahrefs is known for its accurate and up-to-date backlink data, which is crucial for comprehensive SEO analysis and strategy development.
  • Robust Keyword Research
    The keyword research tools in Ahrefs provide detailed information and insights, helping users to identify valuable keywords for their content.
  • Site Audit Capabilities
    Ahrefs' site audit feature helps identify and fix on-site SEO issues, improving overall website health and performance.
  • Continuous Updates
    Ahrefs frequently updates its database and introduces new features, ensuring users have access to the latest SEO tools and data.
  • Competitive Analysis
    The platform allows users to analyze competitor websites in-depth, giving insights into their strategies and helping to identify opportunities.

Possible disadvantages of Ahrefs

  • High Cost
    Ahrefs is relatively expensive compared to other SEO tools, which may be a barrier for small businesses or individual users with limited budgets.
  • Learning Curve
    Despite its user-friendly interface, the vast array of features and data can initially be overwhelming for new users, requiring time to master.
  • Limited Access in Basic Plan
    The lower-tier plans limit access to certain data and features, potentially necessitating an upgrade to higher-cost plans for full functionality.
  • No Free Trial
    Ahrefs does not offer a free trial, which can make it challenging for potential users to fully assess its value before committing to a subscription.
  • API Limitations
    Access to the API is restricted and may not be comprehensive enough for advanced users requiring extensive data integration capabilities.
  • Occasional Data Gaps
    Despite frequent updates, there may occasionally be gaps or delays in data, particularly for niche or emerging markets.
  • Limited Customer Support Options
    Customer support is mainly provided via email, which might not be sufficient for urgent issues or users preferring instant support options like live chat.

Apache Solr videos

Solr Index - Learn about Inverted Indexes and Apache Solr Indexing

More videos:

  • Review - Solr Web Crawl - Crawl Websites and Search in Apache Solr

Ahrefs videos

Ahrefs Review and Tutorial: Is This The Only SEO Tool You Need?

More videos:

  • Review - Ahrefs Review | FatRank Ahref Testimonial
  • Tutorial - How to Use Ahrefs Tool - Best Premium SEO Tools [2019]

Category Popularity

0-100% (relative to Apache Solr and Ahrefs)
Custom Search Engine
100 100%
0% 0
SEO Tools
0 0%
100% 100
Custom Search
100 100%
0% 0
SEO
0 0%
100% 100

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Apache Solr and Ahrefs

Apache Solr Reviews

Top 10 Site Search Software Tools & Plugins for 2022
Apache Solr is optimized to handle high-volume traffic and is easy to scale up or down depending on your changing needs. The near real-time indexing capabilities ensure that your content remains fresh and search results are always relevant and updated. For more advanced customization, Apache Solr boasts extensible plug-in architecture so you can easily plug in index and...
5 Open-Source Search Engines For your Website
Apache Solr is the popular, blazing-fast, open-source enterprise search platform built on Apache Lucene. Solr is a standalone search server with a REST-like API. You can put documents in it (called "indexing") via JSON, XML, CSV, or binary over HTTP. You query it via HTTP GET and receive JSON, XML, CSV, or binary results.
Source: vishnuch.tech
Elasticsearch vs. Solr vs. Sphinx: Best Open Source Search Platform Comparison
Solr is not as quick as Elasticsearch and works best for static data (that does not require frequent changing). The reason is due to caches. In Solr, the caches are global, which means that, when even the slightest change happens in the cache, all indexing demands a refresh. This is usually a time-consuming process. In Elastic, on the other hand, the refreshing is made by...
Source: greenice.net
Algolia Review – A Hosted Search API Reviewed
If you’re not 100% satisfied with Algolia, there are always alternative methods to accomplish similar results, such as Solr (open-source & self-hosted) or ElasticSearch (open-source or hosted). Both of these are built on Apache Lucene, and their search syntax is very similar. Amazon Elasticsearch Service provides a fully managed Elasticsearch service which makes it easy to...
Source: getstream.io

Ahrefs Reviews

  1. Cyra Brown
    · Owner at Beginu ·
    Excellent for discovering low competition keywords

    I've enjoyed using Ahrefs to inform content creation due to their keyword explorer being so useful for finding low difficulty keywords. I do prefer the legacy version of their site explorer in comparison to the new format so I hope that they do not retire certain elements of the platform.

    🏁 Competitors: SEMRush

The 16 Best Moz Alternatives for Every Budget 
Unlike competitors, Ahrefs doesn’t offer a free trial. To start using Ahrefs, you must purchase the Lite plan for $129.
10 SE Ranking Alternatives in 2025 [Free and Paid]
Users appreciate Moz Pro for its user-friendly design and accurate rank tracking, making it accessible to both beginners and experienced marketers. However, some users feel it lacks the depth in backlink analysis offered by tools like Ahrefs, which may limit its appeal for those focusing on link-building.
10 Moz Pro Alternatives in 2025 [Free and Paid]
Starting at $129/month, Ahrefs is slightly more expensive than Moz Pro but offers advanced features that justify the investment. For users who require detailed backlink data and in-depth SEO analysis, Ahrefs is a top choice.
The best alternatives to SE Ranking in 2024
But all this comes at a price. Ahrefs is quite expensive, especially considering that even with a subscription, its use is not unlimited. At the beginning of each month, you are allocated a number of credits, which varies depending on the plan, and these credits are depleted as you use many of its features. And believe me, the credits run out faster than you realize.
Source: dinorank.com
Top 6 Moz Competitors In 2024: A Detailed Review
Furthermore, Ahrefs excels in providing users with in-depth backlink data. It helps to uncover new link-building opportunities and analyze competitors’ backlink strategies. Its user-friendly interface and accurate data make it a favorite among SEO professionals.

Social recommendations and mentions

Based on our record, Ahrefs should be more popular than Apache Solr. It has been mentiond 117 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Apache Solr mentions (19)

  • List of 45 databases in the world
    Solr — Open-source search platform built on Apache Lucene. - Source: dev.to / 10 months ago
  • Considerations for Unicode and Searching
    I want to spend the brunt of this article talking about how to do this in Postgres, partly because it's a little more difficult there. But let me start in Apache Solr, which is where I first worked on these issues. - Source: dev.to / 11 months ago
  • Swirl: An open-source search engine with LLMs and ChatGPT to provide all the answers you need 🌌
    Using the Galaxy UI, knowledge workers can systematically review the best results from all configured services including Apache Solr, ChatGPT, Elastic, OpenSearch, PostgreSQL, Google BigQuery, plus generic HTTP/GET/POST with configurations for premium services like Google's Programmable Search Engine, Miro and Northern Light Research. - Source: dev.to / over 1 year ago
  • Looking for software
    Apache Solr can be used to index and search text-based documents. It supports a wide range of file formats including PDFs, Microsoft Office documents, and plain text files. https://solr.apache.org/. Source: about 2 years ago
  • 'google-like' search engine for files on my NAS
    If so, then https://solr.apache.org/ can be a solution, though there's a bit of setup involved. Oh yea, you get to write your own "search interface" too which would end up calling solr's api to find stuff. Source: over 2 years ago
View more

Ahrefs mentions (117)

  • Ask HN: How to Get Good at SEO?
    I recently "launched" my product by mentioning it across Twitter and Discord which led some traffic to it. However, that is not a long-term strategy. I have heard about Ahrefs: https://ahrefs.com/, but I don't want to spend $129 right now since I'm not sure whether the ROI on it would be worth it. Are there any strategies or tips you might be able to share? - Source: Hacker News / 10 days ago
  • Open source Google Analytics replacement
    Posthog is pretty good but very pushy towards using their SaaS (understandably). Self hosting is not really advertised on their main site however is buried in their gh repo as a footnote [1] with indications of vague issues past 100K events/month. Haven’t delved into how to scale it past that though and they do provide some docs that I have yet to review. Also the primary repo is not FOSS, and that "100% FOSS"... - Source: Hacker News / 12 days ago
  • What We Did to Gain 3,000 GitHub Stars for the Liam Repository
    Used Ahrefs to check backlinks of competitors and similar products, adding sites that featured those products to our list of candidates. - Source: dev.to / 28 days ago
  • How to scrape Crunchbase using Python in 2024 (Easy Guide)
    Sitemap is a standard way of site navigation used by crawlers like Google, Ahrefs, and other search engines. All crawlers must follow the rules described in robots.txt. - Source: dev.to / 4 months ago
  • How much does it cost to build and run a profitable side project?
    I eventually made my peace with email marketing, but I still dread marketing in general. That's why I like the idea of SEO, which performs like passive marketing in some sense. I used to have a Keysearch membership, but I wasn't sure about the accuracy of some of the results I was getting on my keyword research. I ended up getting an Ahrefs membership, which costs a lot more but is supposed to offer much more... - Source: dev.to / 5 months ago
View more

What are some alternatives?

When comparing Apache Solr and Ahrefs, you can also consider the following products

ElasticSearch - Elasticsearch is an open source, distributed, RESTful search engine.

SEMRush - All-in-one Marketing Toolkit for digital marketing professionals.

Algolia - Algolia's Search API makes it easy to deliver a great search experience in your apps & websites. Algolia Search provides hosted full-text, numerical, faceted and geolocalized search.

Moz - Backed by industry-leading data and the largest community of SEOs on the planet, Moz builds tools that make inbound marketing easy.

Typesense - Typo tolerant, delightfully simple, open source search 🔍

Serpstat - Serpstat is the Swiss army knife for automating SEO processes. With a suite of powerful modules, you can track your performance, analyze your competitors, research keywords and backlinks, audit your website, and so much more.