How to Implement Title Service in Angular: Easy Guide

Step 3: Using Title Strategy with Angular Router

While setting the title directly in each component works, a more scalable approach is to use a Title Strategy in Angular's router. This way, you can define a title for each route in the route configuration.

3.1 Define Title Strategy in the Routing Module

In your app-routing.module.ts, you can add a data property to each route that specifies the title. Then, you can implement a custom TitleStrategy to dynamically set the title based on the current route.

Here’s how you can set it up:

import { NgModule } from '@angular/core';
import { RouterModule, Routes } from '@angular/router';
import { Title } from '@angular/platform-browser';
import { HomeComponent } from './home/home.component';
import { PostDetailComponent } from './post-detail/post-detail.component';

const routes: Routes = [
{ path: '', component: HomeComponent, data: { title: 'Home - Angular App' }},
{ path: 'post/:id', component: PostDetailComponent, data: { title: 'Post Details - Angular App' }}
];

@NgModule({
imports: [RouterModule.forRoot(routes)],
exports: [RouterModule]
})
export class AppRoutingModule { }

3.2 Creating a Custom Title Strategy

Now, let’s create a custom TitleStrategy to use this data for dynamic titles:

import { Injectable } from '@angular/core';
import { TitleStrategy, RouterStateSnapshot, ActivatedRouteSnapshot } from '@angular/router';
import { Title } from '@angular/platform-browser';

@Injectable({
providedIn: 'root'
})
export class CustomTitleStrategy extends TitleStrategy {

constructor(private titleService: Title) {
super();
}

override updateTitle(snapshot: ActivatedRouteSnapshot, routerState: RouterStateSnapshot): void {
const title = snapshot.data['title'] || 'Default Title';
this.titleService.setTitle(title);
}
}

3.3 Update AppModule

Finally, register your CustomTitleStrategy in the AppModule:

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppRoutingModule } from './app-routing.module';
import { AppComponent } from './app.component';
import { Title } from '@angular/platform-browser';
import { CustomTitleStrategy } from './custom-title-strategy';

@NgModule({
declarations: [AppComponent],
imports: [BrowserModule, AppRoutingModule],
providers: [{ provide: TitleStrategy, useClass: CustomTitleStrategy }],
bootstrap: [AppComponent]
})
export class AppModule {}

With this setup, Angular will automatically update the page title based on the data field in the route definition.

Step 4: Best Practices for SEO and Title Management

Image : Steps to Implement Title Service in Angular Application

When implementing title management in your Angular application, it's essential to follow SEO best practices to ensure your app ranks well in search engines:

1. Descriptive Titles: Always use descriptive titles that clearly describe the content on the page. This will improve user click-through rates (CTR) and help search engines understand the content.

2. Dynamic Titles for Content: Use dynamic titles that reflect the specific content of the page (like the blog post title or product name).

3. Keep Titles Short: Google typically displays 50-60 characters of the title. Ensure your titles are concise yet descriptive enough to entice users to click.

Step 5: Testing Your Angular Title Service

After implementing the title service, it’s crucial to test if the titles are updating correctly. Open your application in a browser and navigate through different pages. The title in the browser tab should update dynamically based on the content of the page.

To ensure the titles are SEO-optimized, you can also use tools like Google Search Console and Google Lighthouse to measure how search engines perceive your app.

Stay Tuned for More!

You can download the full example from Github and Stackblitz - You can see the live working preview here.

There’s much more to learn and explore when it comes to Angular development, especially around optimizing your app for performance and SEO. Stay tuned for more updates and tips, and feel free to ask any questions you have in the comments section below!

1. What is the Angular Title service used for?

The Angular Title service is used to set the title of the browser tab dynamically, improving SEO and user experience for Angular applications.

2. Can I set a dynamic title based on route parameters in Angular?
Yes, you can use the ActivatedRoute to capture route parameters and set the page title accordingly.

3. How does the Angular router help with title management?
By defining a data property in the route configuration, you can set route-specific titles. A custom TitleStrategy can then be used to update the title dynamically.

4. How do I ensure my Angular titles are SEO-friendly?
Use descriptive, concise titles that clearly reflect the content of each page. Keep titles under 60 characters for optimal display in search results, and make sure the titles are unique to each route to improve indexing by search engines.

5. Can the title be set dynamically for different components?
Yes, you can set dynamic titles for each component by using the Title service inside the component’s lifecycle hooks (e.g., ngOnInit). For route-based titles, it’s best to use the Angular router’s data property or a custom TitleStrategy.

6. How do I test if my Angular title service is working correctly?
You can test your dynamic title setup by navigating through the different routes in your application. Open the browser’s tab and confirm that the title updates according to the route or the content being displayed. Tools like Google Search Console and Lighthouse can help validate the SEO performance of your dynamic titles.

7. Does Angular’s Title service work with server-side rendering (SSR)?
Yes, Angular’s Title service can be used in server-side rendering (SSR) setups, such as with Angular Universal. When implementing SSR, ensure that titles are set correctly on the server-side to improve SEO and ensure that search engines can properly index your application.

The Title service in Angular is more than just a tool for updating the browser tab—it's an integral part of optimizing your web app for SEO and enhancing user experience. By leveraging dynamic titles based on routing, data, and user interactions, you can create an Angular application that’s both SEO-friendly and easy to navigate.

By following this step-by-step guide, you should now be equipped to implement a comprehensive title service that improves the visibility of your Angular app in search results and enhances user engagement.

But remember, there’s always more to learn. Keep exploring best practices for Angular development, and don’t hesitate to reach out with any questions or comments below. Stay tuned for more tips, tricks, and tutorials on improving your Angular applications!

You can download the full example from Github and Stackblitz - You can see the live working preview here. Stay tuned.