Pada saat ini masih banyak blog yang mempunyai loading yang sangat berat, hal ini dapat menyebabkan berkurangnya pengunjung blog hari demi hari. Kali ini aku akan membagikan Cara Meningkatkan Loading Blog dengan LazySizes.
Apa itu Lazysizes ?
Lazysizes adalah self-initializing lazyloader atau code pemanggil yang dapat mempercepat gambar yang kalian gunakan pada blog kalian dan juga bisa kalian gunakan untuk lazyload pada iFrame video, contoh embed video Youtube dan video dari platform lainnya.
Jika blog kalian menggunakan banyak konten gambar dan video tentu saja kalian harus menggunakan LazySizes ini agar blog kalian semakin ringan, karena menggunakan LazySizes semua gambar dan video kalian tidak akan dimuat (off-screen) sebelum di scroll halaman ke bawah.
Bagai mana caranya Cara Meningkatkan Loading Blog dengan LazySizes ?
Carangan sanga mudah sekali, kalian hanya perlu menambahkan beberapa script di bawah ini pada tema yang kalian gunakan pada blog kalian dan pada konten gambar atau video yang ada di blog kalian.
Ok tod, Langsung saja ikuti tutorial di bawah ini kuy... :
Cara Meningkatkan Loading Blog dengan LazySizes
Pertama tama, kalian buka Blogger > Klik Tema > Klik Edit HTML > Lalu tambahkan kode di bawah ini sebelum code </body>
<script>
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// LazySizes https://github.com/aFarkas/lazysizes
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//]]>
</script>Jangan lupa kalian klik tombol Simpan tema untuk checkpoint kalian.
LazySizes pada Gambar
Selanjutnya untuk menerapkannya kalian harus cari semua img yang ada di dalam tema blog kalian.
<img...Contohnya :
<img src='//www.blogger.com/img/icon_delete13.gif'/>Lalu kalian tinggal tambahkan class='lazyload', Contohnya:
<img class='lazyload' src='//www.blogger.com/img/icon_delete13.gif'/>Kalian harus lakukan cara di atas ke semua markup img pada tema blog kalian. Apabila markup img di blog kalian sudah terdapat class, Maka kalian hanya perlu menambahkan lazyload setelah code class pertama, contohnya :
<img class='blogger lazyload' src='//www.blogger.com/img/icon_delete13.gif'/>Jika sudah selesai, klik tombol Simpan tema.
Untuk menerapkannya pada gambar di postingan, kalian perlu menambahkannya secara manual. Contohnya :
<img alt="Kezel Responsive Blogger Template" style="border: none;" data-original-height="853" data-original-width="1494" height="365" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhhtxe0vy15lLk6ztwHeAQ2YDx0sVwA-VP4xa1CcVnTtAwQpJdMTJWFWYzRAXyACXSl4nK6TRR247udJovfJvpjMSB8Owlk7IF0htgbZW6aN3-LhpjdUAm3oP30kYVEyTIN4VK-C8b6fs0J/s640/Kezel+Responsive+Blogger+Template.png" title="Kezel Responsive Blogger Template" width="640" />Lalu kalian tambahkan class="lazyload", Contohnya :
<img class="lazyload" alt="Kezel Responsive Blogger Template" style="border: none;" data-original-height="853" data-original-width="1494" height="365" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhhtxe0vy15lLk6ztwHeAQ2YDx0sVwA-VP4xa1CcVnTtAwQpJdMTJWFWYzRAXyACXSl4nK6TRR247udJovfJvpjMSB8Owlk7IF0htgbZW6aN3-LhpjdUAm3oP30kYVEyTIN4VK-C8b6fs0J/s640/Kezel+Responsive+Blogger+Template.png" title="Kezel Responsive Blogger Template" width="640" />Tapi sebaiknya kalian mengganti src yang ada pada gambar dengan data-src tapi sayangnya untuk Blogger versi baru masih belum bekerja dengan baik
LazySizes pada Video
Selanjutnya menerapkannya pada iFrame video. Caranya hampir sama pada gambar, Contoh pada iFrame video Youtube ini
<iframe width="560" height="315" src="https://www.youtube.com/embed/zBKei6Ji_WI" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>Lalu tambahkan class="lazyload" setelah iframe dan ganti src dengan data-src
<iframe class="lazyload" width="560" height="315" data-src="https://www.youtube.com/embed/zBKei6Ji_WI" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>Untuk melihat hasilnya, silakan cek blog kalian di PageSpeed Insights atau GTmetrix untuk melihat perubahan kecepatan pada blog kalian.
Begitulah Cara Meningkatkan Loading Blog dengan LazySizes yang Aku bisa sampaikan kali ini. Semoga bermanfaat dan jangan lupa share ke teman kalian.
