Télérama: Digital Redesign & AMS

CASE STUDY · MEDIA & PRESS

Radical web performance and continuous AIOps for the Telerama.fr editorial site.

Télérama, a leading cultural magazine of the Le Monde Group, structured a durable digital application maintenance practice with Adservio.

Client

Télérama (Le Monde Group)

Expertise

Web Performance · AMS & SRE · Continuous AIOps

Tech Stack

Next.js · Edge · Real User Monitoring · AIOps · anomaly detection

Engagement

6 experts · 36 months

CONTEXT

Project Context

Telerama.fr, a high-traffic cultural editorial site, suffered from poor load times on mobile, Core Web Vitals in the red and a direct impact on SEO and user engagement.

The legacy observability tooling could not anticipate editorial peaks (cinema, festivals, elections) and incidents were often detected by users themselves or via social media.

The challenge: technically redesign the site as mobile-first, structure a durable digital application maintenance practice and deploy continuous AIOps to anticipate and auto-remediate recurring incidents.

Strategic Objectives

OBJECTIVES

(01)

Radical web performance

Reduce the load time of Telerama.fr by 45% and bring all Core Web Vitals above Google targets (LCP < 2.5s, INP < 200ms, CLS < 0.1).

(02)

Mobile-first UX

Redesign the user experience as mobile-first, where most of the traffic of the Télérama editorial site is concentrated, with a journey optimised for long-form reading and discovery.

(03)

Continuous AIOps

Set up AIOps monitoring with automatic anomaly detection, auto-remediation of recurring incidents and an availability SLA above 99.9%.

Solutions Delivered by Adservio

SOLUTIONS

Adservio deployed a Performance + AMS team (SRE Lead, Performance Engineers, Frontend Architects, AIOps specialist) over 36 months.

(01)

Technical redesign

Complete frontend redesign in Next.js with edge rendering, image optimisation (AVIF/WebP), aggressive code-splitting, lazy-loading and multi-level CDN caching.

(02)

Web Vitals monitoring

Implementation of Real User Monitoring (RUM) collecting Core Web Vitals (LCP, INP, CLS, TTFB, FCP, TTI) on real user p75, with alerting on degradation.

(03)

AIOps & auto-remediation

AIOps platform with anomaly detection on performance metrics, automatic incident classification and automated remediation runbooks for recurring cases.

(04)

Daily AMS

Continuous application maintenance with a dedicated SRE team, 24/7 monitoring, a structured on-call plan and blameless postmortems on every significant incident.

(05)

Performance Engineering

Regular load tests, quarterly capacity planning, continuous optimisation of queries and the caching layer to absorb editorial peaks and viral campaigns.

Core Web Vitals above targets,
+10 K sessions/min monitored continuously.

Real User Monitoring on user p75, AIOps with anomaly detection and auto-remediation: performance is no longer an annual audit, it is a continuous quality gate.

Results

MEASURED FIGURES

−45%

Load time

Initial site load time almost cut in half.

1.84s

Median mobile LCP

Median LCP on mobile, down from 3.4 s, below Google's 2.5 s target.

+70%

Satisfaction (NPS)

User satisfaction score up, with a lower bounce rate.

5/6

Core Web Vitals green

LCP, INP, CLS, TTFB and FCP above Google targets on p75.

÷4

P1 incident MTTR

Mean time to resolution of P1 incidents divided by four.

60%

Auto-remediation

Share of cases now handled automatically by the AIOps platform.

Impact

WHAT IT CHANGES

−45% load time

The initial load time of the site is cut by almost half, with a median LCP down from 3.4 s to 1.84 s on mobile and a TTFB brought down to 420 ms.

+70% user satisfaction

User satisfaction score (NPS) up by 70%, with a notable reduction in bounce rates and an increase in time spent on the site.

5/6 Core Web Vitals green

Five of the six Core Web Vitals (LCP, INP, CLS, TTFB, FCP) are now above Google targets on p75. Only TTI remains on the watch list for continuous optimisation.

Continuous AIOps

Real-time anomaly detection, auto-remediation of recurring incidents and MTTR divided by 4 on P1 incidents. The platform is now self-healing in 60% of cases.

SEO impact

The improvement of Core Web Vitals had a notable positive effect on the SEO ranking of Telerama.fr, with organic growth measured quarter after quarter.

Durable AMS

A durable application maintenance model with an SRE team embedded in the Télérama newsroom, able to anticipate editorial peaks (cinema, literary prizes, elections) without degradation.