Comparison

ResponseSource vs Semrush in 2026: UK media relations vs all-in-one SEO and AI visibility

One is a UK journalist enquiry platform for earning press coverage. The other is a comprehensive SEO suite that added AI visibility tracking across five LLM engines. They rarely compete for the same budget line.

Updated July 3, 2026
ResponseSource
Semrush
Key takeaways
  • ResponseSource is a UK-only media relations tool built around the Journalist Enquiry Service. Semrush is a global SEO platform with no PR or journalist outreach functionality.
  • Semrush tracks AI visibility across 5 engines including ChatGPT, Gemini, Perplexity, Google AI Overviews, and Google AI Mode. ResponseSource has no AI visibility tracking of any kind.
  • Neither tool has a straightforward entry price for its core value: ResponseSource requires a sales conversation for all tiers, while Semrush gates AI tracking behind the $249.95/month Guru plan.
  • ResponseSource has no API. Semrush has a mature API available on Business plan and above, used widely for custom reporting pipelines.
  • Semrush includes white-label agency reporting on its Business tier. ResponseSource has no white-label reporting feature at all.

ResponseSource and Semrush both sit in the SEO Suites category, but they solve almost entirely different problems. ResponseSource connects UK PR professionals with journalists actively looking for expert comment through its Journalist Enquiry Service, while Semrush is a full SEO platform covering keyword research, technical audits, backlinks, and AI visibility tracking across ChatGPT, Gemini, Perplexity, Google AI Overviews, and Google AI Mode. If your work is UK earned media and press coverage, ResponseSource has no real substitute in this comparison. If your work is organic search performance and you want AI search monitoring bundled into the same subscription, Semrush is the far more capable tool. Very few teams need both for the same reason, but agencies running integrated SEO and PR programmes sometimes do run both side by side.

The tools at a glance

ToolStarting priceBest for
ResponseSourceContactUK PR agencies and in-house comms teams that need consistent access to live journalist requests for earned media coverage, with no need for organic search or AI visibility tooling.
SemrushFreeIn-house SEO teams and agencies that want comprehensive SEO tooling plus AI visibility tracking across five engines in a single subscription, and are willing to pay Guru pricing or above to unlock it.

ResponseSource

UK media relations platform connecting PR professionals with journalists seeking expert comment

Full review →
ResponseSource screenshot

ResponseSource has run for over two decades as the dominant UK platform for earning press coverage through its Journalist Enquiry Service, known in the industry as JES. Journalists post live requests when they need an expert quote, data point, or product for a story in progress, and PR subscribers respond directly. This reverse-pitch model tends to produce more targeted coverage than cold outreach because the journalist has already signaled a specific need.

Beyond JES, ResponseSource offers a UK journalist database for proactive outreach, a press release wire, and basic coverage monitoring. None of this touches organic search rankings, keyword data, or AI visibility. It is purely a media relations tool, and its value drops to almost nothing for teams operating outside the UK and Ireland.

Pricing is not published for any tier and requires a sales call. There is no API, which limits how ResponseSource fits into a modern martech stack built around integrations and automated reporting.

Pricing
Feature
JES Only
Contact
Journalist Database
Contact
Full Suite
Contact
Journalist Enquiry ServiceYes
UK journalist databaseYes (Database and Full Suite tiers)
Press Release WireFull Suite only
API accessNo
AI visibility trackingNo
White-label reportingNo
Best for: UK PR agencies and in-house comms teams that need consistent access to live journalist requests for earned media coverage, with no need for organic search or AI visibility tooling.

Semrush

All-in-one SEO and AI visibility platform with keyword research, technical audits, and brand monitoring across five LLM engines

Full review →
Semrush screenshot

Semrush is a comprehensive SEO platform covering keyword research, technical site audits, backlink analysis, competitor benchmarking, and content optimization. It added AI visibility tracking in 2024 and 2025, monitoring brand citations across ChatGPT, Gemini, Perplexity, Google AI Overviews, and Google AI Mode, which puts search and AI monitoring in one subscription rather than two separate tools.

The AI visibility module is gated to the Guru plan at $249.95 per month and above, so evaluating it properly means budgeting past the $139.95 Pro tier. The platform is large, and new users often need weeks to get consistent value from every module, but documentation and support quality are strong.

Semrush includes a white-label reporting module on the Business tier, letting agencies brand PDF exports and share client dashboards, plus a full API for pulling keyword, backlink, and ranking data into custom systems.

Pricing
Feature
Free
Free
Pro
$139.95/mo
Guru
$249.95/mo
Business
$499.95/mo
Keywords to track105001,5005,000
AI visibility trackingNoNoYesYes
White-label reportingNoNoNoYes
API accessNoNoNoYes
Best for: In-house SEO teams and agencies that want comprehensive SEO tooling plus AI visibility tracking across five engines in a single subscription, and are willing to pay Guru pricing or above to unlock it.

Head-to-head feature comparison

Feature
ResponseSource
Semrush
Primary functionPR and media relationsSEO and AI visibility platform
Geographic focusUK and Ireland onlyGlobal, 140 countries
AI visibility trackingNoYes (5 engines, Guru plan+)
Keyword researchNoYes
Technical site auditsNoYes
Backlink analysisNoYes
Press/journalist outreachYes (Journalist Enquiry Service)No
API accessNoYes (Business plan)
White-label reportingNoYes (Business plan)
Starting priceContact for pricingFree / $139.95/mo Pro

Which should you choose?

UK PR agencies pitching journalists for earned coverageResponseSource
In-house SEO teams wanting keyword, backlink, and AI tracking in one toolSemrush
Agencies needing white-label client reportingSemrush
Brands needing expert-comment media opportunities in the UK pressResponseSource
Teams tracking brand citations across ChatGPT, Gemini, or AI OverviewsSemrush

This comparison exists because both tools are filed under SEO Suites, but they answer different briefs. ResponseSource is a press and journalist relationship tool with zero overlap with organic search or AI visibility work. Semrush is a search-and-AI-monitoring platform with no PR functionality. Choosing between them only makes sense if you have mistakenly bracketed them as substitutes; in practice most teams need PR tooling and SEO tooling as separate line items, not a choice between the two.

Bottom line

Use ResponseSource if your goal is earning UK press coverage through direct journalist relationships. Use Semrush if your goal is organic search performance with AI visibility tracking layered on top, and budget for the Guru plan to actually unlock that layer. If you need both earned media and AI visibility monitoring, run them as separate subscriptions rather than expecting either to cover the other job.

Frequently asked questions

Are ResponseSource and Semrush direct competitors?

No, not really. ResponseSource is a UK media relations platform built around journalist enquiries, while Semrush is an SEO and AI visibility platform. They are grouped in the same tool category on review sites, but they solve different problems and rarely replace each other in a real marketing stack.

Does ResponseSource track AI visibility like ChatGPT or Gemini mentions?

No. ResponseSource has no AI visibility tracking of any kind. It focuses entirely on connecting PR professionals with UK journalists through the Journalist Enquiry Service. For AI visibility monitoring, Semrush tracks five engines including ChatGPT, Gemini, Perplexity, Google AI Overviews, and Google AI Mode, though only from the Guru plan at $249.95 per month.

Can Semrush replace a PR tool like ResponseSource?

No. Semrush has no journalist database, no enquiry service, and no press release wire. It cannot replace a dedicated media relations platform. Teams running both organic SEO and UK press outreach typically need both tools rather than expecting Semrush to cover earned media.

Does ResponseSource have published pricing?

No. All three ResponseSource tiers, JES Only, Journalist Database, and Full Suite, require contacting sales for a quote. There is no self-serve signup or public price list, unlike Semrush which publishes pricing for its Free, Pro, Guru, and Business tiers.

Which tool is better for a small agency with a limited budget?

It depends entirely on the service you sell. A PR-focused agency running UK earned media campaigns gets far more value per pound from ResponseSource's Journalist Enquiry Service. An SEO-focused agency gets more value from Semrush's Pro plan at $139.95 per month, upgrading to Guru only once AI visibility reporting becomes a client requirement.

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