WebPageTest vs Splunk Real User Monitoring

WWebPageTest9.0Visit Splunk Real User Monitoring8.6Visit

Higher score W WebPageTest #3 in Core Web Vitals Monitoring Tools 9.0/10 Free plan Free plan✓ 0 of 3 features Visit WebPageTest

vs

Splunk Real User Monitoring #6 in Core Web Vitals Monitoring Tools 8.6/10 Paid ✓ 0 of 3 features Visit Splunk RUM

• WebPageTest fits best

  Open-source performance engineers and test labs

• Splunk Real User Monitoring fits best

  Enterprises needing RUM plus application tracing

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature	WWebPageTest 9.0/10 Visit ↗	Splunk Real User Monitoring 8.6/10 Visit ↗
At a glance
Editor score	9.0	8.6
Ranking	#3 in Core Web Vitals Monitoring Tools	#6 in Core Web Vitals Monitoring Tools
Best for	Open-source performance engineers and test labs	Enterprises needing RUM plus application tracing
Pricing model	Free plan + paid	Paid
Starting price	Free plan	$14/unit usage-based
Free plan	✓ (best)	—
Free trial	—	—
Deployment	Cloud, Self-hosted	Cloud
Platforms	Web	Web, iOS, Android
Features WebPageTest 0/3 · Splunk Real User Monitoring 0/3
Real-user monitoring	Not checked yet	Not checked yet
Synthetic monitoring	Not checked yet	Not checked yet
CI budget checks	Not checked yet	Not checked yet
Specs
Alert channels	Not checked yet	Not checked yet
Data retention	Not checked yet	Not checked yet
Synthetic test locations	Not checked yet	Not checked yet
Our review
Pros	Tests pages across browsers and locations, with page- and request-level metrics Includes Lighthouse runs, scripted tests, and API access Open-source with cloud and self-hosted deployment options	Monitors Core Web Vitals across browser and native mobile applications Correlates frontend interactions with Splunk APM backend traces Supports OpenTelemetry and 200 integrations across cloud and development stacks
Cons	Does not provide continuous page-speed monitoring Does not include site audits Does not include A/B testing	No free plan is offered Pricing is based on sessions rather than a flat platform fee Cloud deployment may not fit teams requiring self-hosted monitoring
Our verdict	WebPageTest is a website performance testing tool for developers and teams investigating how web pages load. It runs tests with real browsers and locations, then presents performance results for analysis. Its emphasis is on running and… Read the review →	Splunk Real User Monitoring is a cloud service for engineering and IT operations teams monitoring browser and native mobile application experiences. It covers Core Web Vitals, web and mobile performance, errors, crashes, long resource… Read the review →

Strengths and trade-offs

• WebPageTest — where it wins

  • Tests pages across browsers and locations, with page- and request-level metrics
  • Includes Lighthouse runs, scripted tests, and API access
  • Open-source with cloud and self-hosted deployment options

  Where it doesn't

  • Does not provide continuous page-speed monitoring
  • Does not include site audits
  • Does not include A/B testing

• Splunk Real User Monitoring — where it wins

  • Monitors Core Web Vitals across browser and native mobile applications
  • Correlates frontend interactions with Splunk APM backend traces
  • Supports OpenTelemetry and 200 integrations across cloud and development stacks

  Where it doesn't

  • No free plan is offered
  • Pricing is based on sessions rather than a flat platform fee
  • Cloud deployment may not fit teams requiring self-hosted monitoring

• WWebPageTest9.0/10 · Free plan

  A flexible page-testing toolkit, not a continuous Core Web Vitals monitor.

  Visit WebPageTestFull verdict →
• Splunk Real User Monitoring8.6/10 · Paid

  Splunk RUM pairs Core Web Vitals with mobile monitoring and frontend-to-backend tracing.

  Visit Splunk RUMFull verdict →