
Ahrefs
Moz
SE Ranking
Serpstat
Profound
Otterly.AI
Surfer SEO
All-in-one Marketing Toolkit for digital marketing professionals.

Kie.ai
ToAPIs
Crun.ai
APIPASS API Market
RunwayML
OpenRouter
Veo 3 Video Generator
Affordable AI API gateway - cheap access to OpenAI, Anthropic, Google models through unified interface. Low cost alternative to direct API integration

Which is more popular?
Based on our record, SEMRush seems to be more popular. It has been mentioned 19 times since March 2021.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | semrush.com | defapi.org |
| Pricing | — | |
| Company | Startup from the United States | — |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of SEMRush yet.
Defapi is a premier API aggregation platform for AI models, giving developers a single point of access to world-class models from across the globe. Using Defapi, you can quickly plug into the newest capabilities from OpenAI, Anthropic, Google and other top vendors. Defapi streamlines AI adoption...
What each product offers, as listed by its team.


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


Overall verdict
Why this product is good
Recommended for
SEMRush is particularly recommended for SEO specialists, digital marketing agencies, content marketers, and businesses of all sizes who are serious about improving their search engine rankings and digital marketing strategies. It is also suitable for PPC managers and social media strategists who need comprehensive tools for campaign analysis and tracking.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
SEMRush Review 2020 ☑️ Best Keyword Research Tool in 2020? 😱 SEMRush Tutorial
More videos
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How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using SEMRush and Defapi.org. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Semrush provides a broad feature set. Use it for competitor analysis and site health. The Copilot feature gives recommendations based on your specific site data. It assists teams managing several projects at once and...
Semrush is a powerhouse in the world of SEO tools for affiliate marketing. It offers a comprehensive suite covering every aspect of digital marketing. Its standout feature is robust keyword research, enabling users to...
If you run local SEO campaigns, Semrush has a whole set of tools called Semrush Local that are just for that purpose. You can add this tool kit on to a standard Semrush subscription or purchase it separately.
We have no reviews of Defapi.org yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Semrush offers a solid checker for brand mentions in AI searches. Go Fish Digital provides a detailed manual review for one page. Betteraeo is built specifically for AEO, providing a full score and technical gap analysis. - Source: dev.to / 4 months ago
Unveiling the Advanced SEO Strategies: 1. Strategic Keyword Domination: Identify high-value, long-tail keywords relevant to your niche. Leverage keyword mapping to align content with specific stages of the customer journey. Tools... - Source: dev.to / over 2 years ago
I use SEMRush (semrush.com/) a lot when researching a niche. I would input the URL of a competitor, and then examine "competitors of organic key words" -- to find related websites that compete with the input URL website. I would spent... Source: over 3 years ago
Tracking Defapi.org since Dec 2025.
When comparing SEMRush and Defapi.org, you can also consider the following products.

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!
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Affordable DeepSeek R1 API with powerful reasoning and robust security.
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Backed by industry-leading data and the largest community of SEOs on the planet, Moz builds tools that make inbound marketing easy.
Compare Moz to SEMRush or Defapi.org:

Enterprise AI API Gateway supporting GPT-5, Claude Sonnet 4.5, Gemini 2.5 and 50+ models. OpenAI compatible, 5-min migration, 99.9% SLA.
Compare ToAPIs to SEMRush or Defapi.org:

All-in-One cloud-based SEO software for agencies, marketing teams and webmasters
Compare SE Ranking to SEMRush or Defapi.org:

One API to access all top AI models—video, image, audio, and text. Fast integration, 30–70% cost savings, high-performance, and developer-friendly.
Compare Crun.ai to SEMRush or Defapi.org: