Key Mobile Optimization Tasks
Chapitre 2 : Fondamentaux du recherche · Question 28
By 2025, mobile internet users in China accounted for over 83% (data source: China Internet Network Information Center) CNNICLe rapport statistique sur l'évolution de l'internet en Chine (les proportions exactes doivent être basées sur le dernier rapport disponible), la recherche mobile sur Baidu a dépassé celle sur PC depuis longtemps. Baidu adopte clairement l'indexation mobile prioritaire (Mobile-First Indexing), ce qui signifie que les robots de Baidu indexent d'abord votre page mobile, et l'expérience mobile détermine directement votre classement. L'optimisation mobile n'est pas un atout, c'est une condition de survie.
Responsive vs. standalone mobile site (m.domain)
| Solution | Advantages | disadvantage | Use cases |
|---|---|---|---|
| Responsive design | One codebase is easier to maintain, and unified URLs are beneficial for SEO | Renovating outdated sites is costly | New site, small to medium-sized website |
| site web indépendant | Mobile experience can be deeply customized | The adaptation relationship submission is required, doubling the maintenance cost | Major portals, e-commerce platforms |
| Service dynamique | Same URL, different HTML | Complex to implement, prone to errors | major site with a strong tech team |
Recommandations actuelles de Baidu : Responsive design. If you're using a standalone mobile site, make sure toBaidu RechercheSubmit the "mobile adaptation relationship" to the resource platform to inform Baidu of the mapping rules between desktop and mobile pages.
Item obligatoire 1 : balise Meta Viewport
Ensure that each page has<head>contient :
<meta name="viewport" content="width=device-width, initial-scale=1.0">
Sans cette ligne de code, les appareils mobiles afficheront la page selon la largeur du bureau, ce qui obligera les utilisateurs à zoomer pour lire le contenu, et Baidu considérera cela comme « non adapté aux mobiles ».
Must-do #2: Touch-friendly design
- Touchable elements (buttons, links) should be at least 44×44 pixels in size
- Leave sufficient spacing between links to avoid accidental taps
- Do not use Flash (Baidu no longer crawls Flash content)
- avoid content that only appears on mouse hover (mobile devices don't have hover states)
- Définir le type d'entrée approprié (tel, email, etc.) pour les champs de formulaire afin de faire apparaître le clavier correspondant
Essential Task 3: Mobile Page Speed
Baidu's Lightning Algorithm imposes stricter requirements on mobile:
- Keep first-screen loading under 1.5 seconds
- Avoid having interstitial ads block content (Baidu's Ice Bucket algorithm penalizes this)
- Image lazy loading
- Minify unnecessary JS and CSS for mobile
Must-do 4: Submit to Baidu Mobile Compatibility
Path in Baidu Search Resource Platform: Search Services → Mobile Compatibility
- Rule Adaptation : Declare the mapping between PC and mobile URLs using regular expressions
- URL adaptation : Submit PC-mobile URL pairs one by one
- Self-adaptation : Aucune soumission n'est requise pour un site web réactif, mais il est recommandé de confirmer son statut d'identification sur la plateforme de gestion du site.
Must-do #5: On MIP and Baidu's mobile status
Le MIP de Baidu (Mobile Instant Pages) a cessé d'être entretenu en 2020, il n'est plus nécessaire de s'y connecter. L'accent actuel sur l'optimisation mobile de Baidu revient à :
- Page loading speed
- Quality of content and mobile reading experience
- Baidu's mobile ecosystem and mini programs
- Structured dataAdapt
Common mobile SEO mistakes
- Inconsistent content between mobile and desktop：Baidu prend en compte principalement les appareils mobiles ; si le contenu manque sur mobile, il est considéré comme absent dans l’ensemble
- Mobile Robots are blocking critical resources : JS, CSS sontrobots.txtBlocked: Baidu cannot correctly render the page
- Fullscreen pop-ups and floating layers：Le algorithme du seau de glace entraîne un traitement de pénalisation
- Font trop petit : La taille de police du texte principal doit être d'au moins 14px
- horizontal scrollbar：Content overflow beyond the screen, resulting in extremely poor user experience
Practical recommendations
- Check your site using the Baidu Search Resource Platform's "Mobile Landing Page Experience" tool：It will tell you whether your page meets Baidu's mobile standards and which elements need modification
- Prioritize resolving the "No mobile adaptation" issue：In Baidu search results, pages without a mobile adaptation label rank significantly lower than competitors with mobile adaptation
- Real-device testing cannot be skipped：Don't rely solely on Chrome emulators—test your website on at least one Android device and one iPhone to experience actual loading speed and usability
