Automated Core Web Vitals monitoring for website

Our company is engaged in the development, support and maintenance of sites of any complexity. From simple one-page sites to large-scale cluster systems built on micro services. Experience of developers is confirmed by certificates from vendors.
8+Years of work900+Completed projects100+In house employees19+Partners
Development and maintenance of all types of websites:
Informational websites or web applications
Business card websites, landing pages, corporate websites, online catalogs, quizzes, promo websites, blogs, news resources, informational portals, forums, aggregators
E-commerce websites or web applications
Online stores, B2B portals, marketplaces, online exchanges, cashback websites, exchanges, dropshipping platforms, product parsers
Business process management web applications
CRM systems, ERP systems, corporate portals, production management systems, information parsers
Electronic service websites or web applications
Classified ads platforms, online schools, online cinemas, website builders, portals for electronic services, video hosting platforms, thematic portals

These are just some of the technical types of websites we work with, and each of them can have its own specific features and functionality, as well as be customized to meet the specific needs and goals of the client.

Offered services
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Automated Core Web Vitals monitoring for website
Medium
from 1 business day to 3 business days
FAQ
Our competencies:
Development stages
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Automatic Core Web Vitals Monitoring

Core Web Vitals directly correlate with conversion. Every 100ms LCP delay reduces conversion ~1%, CLS above 0.25 causes accidental clicks and exits. Monitoring must be continuous, not one-time.

Lab data from Lighthouse shows current state. Field data from CrUX shows real user experience over 28 days. Both are important.

Setup CrUX API and Lighthouse monitoring via Node.js or Python. Store results in PostgreSQL. Integrate with CI/CD to fail deploy on degradation. Visualize trends in Grafana.

Thresholds

Metric Good Needs Improvement Poor
LCP ≤ 2.5s 2.5–4.0s > 4.0s
CLS ≤ 0.1 0.1–0.25 > 0.25
INP ≤ 200ms 200–500ms > 500ms

Timeline

Setup CrUX + Lighthouse + PostgreSQL + Grafana — 3–4 working days. CI/CD integration — 1 extra day. Alerts — 0.5–1 day.