JavaScript is a dialect of the standardized ECMAScript programming language, primarily used for scripting web-pages. Use this tag for questions regarding ECMAScript and its dialects/ implementations: JavaScript, JScript, etc., excluding ActionScript.

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65 views

How does dynamic content replacement affect PPC quality score?

I'm looking to write a script that dynamically replaces elements of my page with content related to the keyword that resulted in a PPC click. For example, visiting the landing page after searching on ...
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2answers
103 views

Does the JavaScript that Google Analytics Experiments adds slow down alternate versions, and how could I measure this?

I am using Content Experiments in Google Analytics to test three different landing pages. This uses JavaScript on the initial page to load the alternates. Would the additional JavaScript add to the ...
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1answer
45 views

Google pre-rendering causing double and triple events [duplicate]

Is it possible to detect google chrome and firefox prerendering on the server side, or in .htaccess, and defer the prerendering for the purpose of monitoring traffic and website events, or do I need ...
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3answers
179 views

How to SEO optimise Ajax/Json loaded images?

I am using Galleria.io on a website to display a gallery of images. In the database, the images have a title and description to properly explain what the image is. I load the images into galleria ...
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2answers
329 views

Redirect to an affiliate using PHP or JavaScript redirect?

I was asked to introduce a unified self hosted URL-Shortener/Forwarder/Tracking Service for an website that earns money from affiliates. One example I found was one of the bigger german sites for ...
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2answers
367 views

403 Error Fetching Image with JS

I've read all the 403-related questions here and elsewhere and I can't find an answer to this question: When I try to get a particular image on a remote domain via JavaScript I get a 403 error. But ...
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1answer
127 views

Implications of SEO for single page websites

I built a server application that handles bot requests for my website, which was built using AngularJS. It works great, but I'm not entirely sure if it's valid in terms of Google's policy for SEO. ...
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1answer
85 views

Does Googlebot share geo-location information to better crawl geo-aware websites?

I'm developing a website that allows users to share their location via JavaScript. Based on that location, either the content of the current page will change, or it will redirect a user to a page with ...
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2answers
52 views

Global UTF-encoding, the right way

I'm curious, as to what is the right way to have UTF-8 encoding on all web files All my files (incl. CSS and JS) are made and saved in UTF-8 encoding In PHP, I set the char-set on top of the main ...
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0answers
29 views

Store a formula in a table and use the formula in a javascript/PHP function [closed]

I have a MySql database where part of it handles instrument's depth of water. Each instrument has its own formula of calculation how depth the water when the operator collect the reading I stored the ...
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3answers
276 views

Is doing A/B tests using site redirection a bad practice?

I'm developing hotels websites here in Brazil. When the site is done, we do an A/B test with the old version to measure conversion and show to the hotel owner how good our site is. Due to the fact ...
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0answers
89 views

What could keep a javascript from loading properly on a page? [closed]

We have a vendor that switched our files over to a new server. We had a carousel on our homepage that was using javascript saved on the vendor server. After the move the carousel javascript won't ...
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1answer
345 views

Why is my Custom HTML tag not fired in Google Tag Manager

I have a Custom HTML tag in Google Tag Manager that is actually very simple. It consists of the following code (a GTM Macro): {{html generator}} This tag is only fired on the Thank-you page on my ...
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3answers
3k views

Lazy loading images and effects on SEO

We are using the following technique to lazy load images in our site: For all images we put in the src attribute a url for a default img (i.e. a loader) and put the actual image url in the data-src ...
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8answers
3k views

Is inline JavaScript good or bad?

I've currently switched from WordPress to Yii framework and an external developer is rebuilding my site. One thing I notice is that each time he invokes AJAX / jQuery the Yii way, it embeds inserts ...
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1answer
72 views

How does licensing affect my website?

I like to use prebuilt CSS/JS such as Foundation and PureCSS and I'm curious as to how I should go about displaying the licensing information, as well as how the license will affect the code that I ...
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0answers
41 views

How to clean PmWiki from JS:Includer-AWG and protect my site from future infections?

I'm hosting a site for an NGO for several years now. The site seems to be based on a PmWiki backend. I don't know much details because I'm just hosting the site and I'm not the guy who set it up. I ...
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1answer
145 views

How should I upload videos to Amazon S3?

I have a project which is basically a website like YouTube. I am hosting my videos with Amazon S3. I am confused as to whether I should upload videos (200mb+) by a PHP script or by browser-based ...
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1answer
279 views

How to add custom CSS for Addthis and validate on W3C validator?

I have Addthis code on the very bottom of the page HTML code, and then, after it I have CSS file with some custom decorations of Addthis widget. Everything looks like this: <script ...
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2answers
67 views

Dynamically load CSS

I'm using LESS for creating CSS and I'm considering using something like grunt-render on the server side in order to only load the CSS / JS that is needed for that page. My goal is to reduce overhead ...
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0answers
24 views

line monitoring of phonograms (songs) of radio [closed]

I need to create a monitoring system of phonograms (songs) of radio and television online through streaming so on, but my team and know the way to develop this monitoring system, I know there ...
4
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1answer
517 views

AngularJS SEO for static webpages (S3 CDN)

I've been looking into ways to improve SEO for angularJS apps that are hosted on a CDN like Amazon S3 (i.e. simple storage with no backend). Most of the solutions out there, PhantomJS, prerender.io, ...
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2answers
242 views

Will i18next affect SEO? What about screen readers?

I'm considering using i18next for translating text. But then it suddenly struck me; If labels / text is retrieved through javascript, won't that affect SEO? And what about screen readers for visual ...
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1answer
37 views

Is linked text searchable by crawlers?

I recently created a simple website for a web-app I made. The site and the app are both mobile oriented, so there is a limited amount of room for adding text content (I designed the interface to avoid ...
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1answer
384 views

Could too many HTTP requests using AJAX result in browser crashes?

We are running an ASP.NET web application, and recently we received a lot of crash reports from users. It sometimes crashes the Chrome browser, and sometimes it loads indefinitely. This is how our ...
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1answer
3k views

How does CloudFlare's Rocket Loader actually work (and how can a developer ensure compatibility)?

CloudFlare has quite a ground-breaking technology called Rocket Loader (both on free and paid accounts). But how does it actually work? They have a couple of pages that describe the technology, but ...
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2answers
84 views

Do spam bots load the DOM?

I have an issue where a form on my site is getting spammed. The form is actually a copy paste job from a CRM, so I cannot access any of the server side script to make a good human checker. In the ...
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1answer
50 views

JavaScript conditional “builds”

I'm working on a piece of JavaScript code that searches its host page for references from a certain source and when hovered, shows the definition/referenced text in a tooltip (something like Google ...
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0answers
226 views

Google analytics in E-commerce iframe not tracking source

I have a ticket booking system in an iframe. I am tracking sales but the source of the sales is not being recorded. I'm trying to shed some light on why this might be. The code on the parent page is ...
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0answers
37 views

Can a webpage dial a traditional phone land-line? [closed]

I am working a website for a sales team and I would like to know if there is a way to dial a traditional telephone land-line from a webpage using JavaScript or a plugin in conjunction with a piece of ...
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0answers
26 views

Does Google Analytics not track data accurately when reporting the same pages to multiple accounts?

I am reporting my traffic to 2 different Google Analytics accounts. Using Universal Analytics, I am doing something like: ga('create', 'UA-XXXX', 'auto'); ga('send', 'pageview'); ga('create', ...
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2answers
31 views

Will auto refresh put additional burden on my web app?

I am trying Alfresco share Community Edition. It has a discussion site where user can ask questions. The problem here is alfresco does not provide auto refresh out of the box. The user has to refresh ...
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1answer
22 views

how to send and display data from one domain to another? [closed]

I have my portal on asp.net, my friend have on php. He wants to me to return text data from my database by sending parameter and wants to display it on his portal. I have given him url say ...
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1answer
89 views

Declaring variables using single or multiple var statements. Performance wise [closed]

Someone once told me that it's better for Javascript performance to use one var statement rather then multiple. I.e. // Version A. Allegedly Faster var a = 1, b = 2, c = 3; // Version B. ...
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2answers
346 views

Is changing HTML with JavaScript bad for SEO?

Building web apps I don't have to worry so much about SEO for back end things so dynamically changing the HTML isn't an issue. I am using backbone.js with a front end site I'm building and the site ...
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2answers
111 views

Can Google index pages that use framesets generated by javascript (document.write)?

I was tasked to check on why Google can't seem to index a client site properly. The site uses a framework given by client's parent company (so we can't use other framework). The framework use ...
2
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3answers
354 views

rel=nofollow, JavaScript slider content, SEO

My website has all content on one page. I'm using JavaScript to slide (animate) between the various "subpages", so only the subpage content is shown. The menu buttons are as this: <a ...
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1answer
2k views

Internet Explorer iframe JavaScript access denied

I have a webpage on domain www.example.com that has an <iframe> with a page test.html from sub.example2.com. test.html includes a JavaScript from another domain: <script ...
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1answer
34 views

How to void JavaScript on submission?

My friend is kind of web-developer, beginner. I noticed that he didn't purify his user input on form submission, so I could easily save to his DB working <script>alert();</script>. After ...
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2answers
61 views

Question about external JavaScript and SEO [duplicate]

I have a question about external JavaScript and SEO. Assume I have a site called example.com with and index page of: <html> <body> <div class='main-container'> <script ...
2
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1answer
32 views

Google Experiments - can you run across the entire site?

Is it possible to run a Google Experiment A/B test across an entire website, rather than just a single page and a variation?
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2answers
122 views

Cannot add DataTables.net javascript into Joomla 1.5

I've been having this problem where i couldn't add Datatables.net javascript into my Joomla article. I have been trying to include it through Jumi. To say that my editor strips of the tag is ...
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3answers
325 views

How to redirect keeping the referral without server-side redirects?

I have an HTML page hosted in Dropbox that some external websites link to. I want to redirect to a different page using only HTML or Javascript, since I can't use any server-side redirects. My goal ...
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2answers
1k views

Can I defer loading Modernizr?

I'm using an HTML5 template that makes thorough use of the semantic tags and includes Modernizr up top to do the necessary IE coaxing. Google PageSpeed is complaining about the blocking JavaScript and ...
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1answer
500 views

Ecommerce product information missing with Google Universal Analytics

I recently upgraded to (Google) Universal Analytics but since the upgrade no product information is appearing in my Conversions reports. But, transactions do appear as do all of the other usual ...
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1answer
108 views

Best practice for scroll-up web page

As was pointed out in a question asked earlier, Google will not recognize when the DOM is altered via JavaScript after initial page load to start at the bottom and scroll up rather than down. ...
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3answers
201 views

How does Google treat multiple page title matches from same site?

I have several non-duplicate page titles that match a search query, say for the query 'stackexchange': <title>John Smith Popular Content</title> <title>John Smith ...
4
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1answer
94 views

Tracking dynamic events in Google Analytics?

I'm trying to implement dynamic events in my platform to trackearlos. My question is: For generating these events and who are trackeados in Google Analytics to put the push of the "onclick" to do ...
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1answer
45 views

I have multiple versions of the same landing page. How can I tell Google Analytics which is being viewed?

I'm sending a link to a landing page to a number of different companies and need to be able to tell Google Analytics which company is viewing the page and when. I of course have my original link to ...
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2answers
115 views

SEO & Return false on click event

I have a dropdown menu and I'm a trying to make it function more logically on touch devices, it currently following the link. On desktops the dropdown menu is displayed onmousehover and when the menu ...