Speed performance
Page content can be delayed if you use document.write().
If you use it, notice that browsers can show error messages in some cases:
[Violation] Avoid using document.write().
An unbalanced tree was written using document.write() causing
data from the network to be reparsed.
If a document.write() is not blocked by Chrome, SeoChecker will notify it in a table like the one below:
You should delete document.write() and use asynchronous loading.
Learn more about Speed performance
On page SEO performance and page checkup.
Over 300 parameters for the deeper page analysis.
Share this Guide
Did you like it? Share it!
Web tools for modern developers. Try these one!
Over 50 generators, builders and validators to improve your SEO and web performances
Images
Zoom in, scale, flip, rotate, crop and resize your images. Upload and edit yours images file for free with dunplab image editor.
Analytics Google Tracking script
Measure and track user interactions with your contents. Track all the actions you want: downloads, clicks, video plays, social share, engagement.
Server and proxy
View and download any website’s Source Code. Get the HTML source code of any online web page from any browser, devices and Os system.
Generate URLs for iOS Campaign Measurement. Use this free tool to generate URLs for measuring the source of iOS application installs.
Builders and generators
Generate icons for web, Android, iOs, Microsoft and Apps. Show a graphical representation of your site within browser’s address bar.
Create Analytics trackable URL and track email opens. Send your email campaign and get data when user open your email.
Builders and generators Social
Generate Twitter cards markup and improve yours html meta. Attach rich photos, videos and media experiences to Tweets and drive traffic to your site.
Converters
Convert text into MD5, SHA-1 and Base64 hash string. Type or paste text and get Messade-Digest Algorithm 5, SHA-1 and Base64 hased string.