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Why Google Cache lies to you and what to do about it (if something)

I frequently browse the search engine optimization communities on Google Webmaster Discussion board, Reddit and Twitter, and I see headings like “Google Cache is empty!!!” and “404 error web page in Google Cache” again and again.

With so many individuals clearly afraid that Google isn’t rendering their pages accurately, I assumed I’d write concerning the cache to assist readers perceive why checking Google Cache is just not a dependable methodology of analyzing how Google sees the web page.

I may also present info on when Google Cache may be helpful and what instruments it’s best to use to verify how Google renders the web page.

What’s Google Cache?

Usually, in case you go to the Google Cache on your web page, you will notice the model of your web page from when Google final crawled it. However what precisely are you seeing? Google Cache incorporates the snapshot of the uncooked HTML that Googlebot obtained out of your server. Then the HTML captured by Google is rendered by your browser.

The concept behind Google storing cached pages is easy: it lets customers browse a web page when the web page is down or within the occasion of a short lived timeout.

There are just a few strategies that can assist you to verify Google Cache. The selection is yours:

In Search outcomes, click on the arrow subsequent to the URL within the search outcomes and choose Google Cache. Google gives even higher directions:

It’s also possible to sort the deal with instantly in your browser. Use cache:URL and also you’ll be redirected to the cache hosted by http://webcache.googleusercontent.com. Moreover, you need to use one of many instruments that enables for checking a number of URLs without delay, reminiscent of Google Cache Checker.

Browser plugins are additionally an possibility. For instance, you need to use Net Cache Viewer.

Now, go to a web page you wish to verify. Click on anyplace on the web page and choose Net Cache Viewer > Google Cache Archive

Now, let’s slice and cube Google Cache. The cache view reveals just a few parts:

  • Requested URL – this web page is requested when Googlebot re-indexes the web site.
  • Date when the web page was listed or re-indexed by Google – understand that typically they might use an older model of your web page, so the date doesn’t present important info.

  • Three kinds of view – Full model, Textual content-only model and View supply.

The complete model reveals a rendered view of the web page. Remember the fact that what you see within the rendered view is the web page rendered by YOUR browser, not by Google.

How do I do know that this view was rendered by the browser put in on my pc slightly than Net Rendering Service (WRS) utilized by Google? Here’s a small experiment. If what I see in Google Cache is rendered by Google’s WRS, I might see the identical content material within the full model that Google captured whereas re-indexing the web page.

Examine Google Cache for this web page — On-line-Stopwatch and evaluate the date of the final re-indexing and the time and date displayed within the cache.

As you may see, the time and date when the positioning was re-indexed is totally different than what’s displayed on the clock. The clock reveals after I checked the cache, so it’s displaying the content material in actual time.

If the web page was rendered by WRS, the time and date can be frozen and would show the identical time as you see within the grey field.

The textual content view is a model with CSS switched off and with no photographs displayed. Right here you will notice solely the textual content and hyperlinks. The textual content view is not going to present the content material loaded with JavaScript, so in case you verify the text-only model of On-line-Stopwatch, the clock is gone.

The supply code is nothing extra the uncooked HTML despatched by your server to Googlebot. Remember the fact that what you see within the supply code view is just not DOM (Doc Object Mannequin), so JavaScript is just not executed.

It’s very simple to misread the data introduced in Google Cache. We must always maintain a wholesome distance between what we’re seeing there and the way we use the information from Google Cache.

Why you shouldn’t depend on Google Cache

Now, it’s time to clarify why Google Cache doesn’t present how Google “sees” your web site.

As proven above, the view supply in cache reveals the uncooked HTML served to Googlebot. On the identical time, the complete model reveals the rendered web page, as rendered by your browser. These two items of knowledge considerably affect how we must always interpret what we see in Google Cache.

Let me guess. You most likely roughly use the up-to-date model of the browser. You possibly can verify it by visiting this web page. My browser is Chrome model 69.

Google, for rendering functions, makes use of Net Rendering Service primarily based on Chrome 41. Chrome 41 is a three-year-old browser and it doesn’t assist all the trendy options wanted for correct rendering. The hole between these variations is big, which you’ll see by merely evaluating the supported and unsupported options in caniuse.

So rendering with Chrome 41 and a extra updated browser is incomparable. Even in case you can see the accurately rendered model of the web page in Google Cache, you may’t ensure that it additionally works in Chrome 41. And vice versa.

The second cause why you shouldn’t depend on Google Cache whereas auditing the web site is content material freshness. Google doesn’t at all times create a brand new snapshot whereas re-indexing the web page. It might occur that they use an older model, despite the fact that the content material might have modified twice since then. Consequently, the content material within the cache may be stale.

Google doesn’t present detailed info on how Google Cache works, however they offer us hints on how we must always interpret the problems found in Google Cache. Under you will see a assessment of the widespread points and their causes.

Widespread points noticed in Google Cache

Necessary observe: a number of the anomalies noticed within the cache are slightly innocent, but it surely doesn’t imply that it’s best to ignore them. If one thing isn’t working within the anticipated manner, it’s best to nonetheless dedicate some consideration and carry out a deeper investigation.

1. A web page is just not rendered correctly

Potential cause: a useful resource like CSS or .js has modified.

Whenever you go to a cached model of the web page you might even see that it has crashed. Some parts may not be rendered correctly; some photographs may be lacking; the fonts may differ from what you see in your web site.

The rationale this will likely happen is that the current rendering relies on the cached model of the web page, which can consult with assets that not exist. So if, for instance, some assets — your stylesheet or some JavaScript code — have modified because the final Googlebot go to, the present rendering may not show as you’d like.

Google webmaster traits analyst John Mueller says that it occurs typically, but it surely’s not one thing to fret about. 

Nonetheless, to be sure that Google doesn’t see a web page that appears like a large number after an enormous get together, I’d slightly go into Google Search Console and carry out a “fetch and render” operate.

2. 404 error web page in Google Cache

Motive: an internet site was switched to mobile-first indexing.

There was a variety of panic when Google began rolling out mobile-first indexing and it appeared that many web sites had been displaying 404 error pages within the cache.


It’s laborious to clarify why this situation happens, as a result of Google doesn’t present particulars, however the Google Site owners Twitter account clearly states that, though this will likely occur, the lacking cache view received’t have an effect on your rankings.

Word: some have seen that you need to use a workaround to see the proper outcomes. Click on within the deal with bar of the 404 web page after which change the positioning title to one thing else — like “x.xyz,” for instance — after which enter.

3. Cache shows a special subpage

Motive: inner duplication

One of the complicated conditions is while you open the cache view and also you see a special web page than anticipated.

You make a “web site:” question to verify the cached model, and the primary unusual symptom you may see within the search outcomes is the meta title and meta description belonging to a special subpage.

When two pages are too just like maintain them separate within the index, Google might determine to fold the 2 pages collectively. In the event that they don’t see important variations between two pages and might’t perceive what differentiates one from the opposite, they might maintain just one model. This appears to be one in all Google’s strategies for coping with duplicate pages.

If you wish to have these two pages listed individually, it’s good to assessment the content material and reply the query: why are they marked as duplicates? Within the subsequent step, be sure that the content material revealed in these pages is exclusive and responds to the customers’ intent.

4. Google Cache shows a completely totally different area

Causes: exterior duplication, incorrect canonicalization.

When trying into Google Cache it’s possible you’ll typically see a web page belonging to a special area. It may be actually complicated.

Google conflates one web site with one other.
Throughout one of many Google Hangouts, John Mueller talked about a selected scenario, when this will likely occur. Typically Google tries to evaluate the content material uniqueness solely by trying on the patterns within the URLs (and doubtless another alerts, however they don’t go to a given web page). For instance, if two e-commerce websites have nearly the identical URL construction and so they share the identical merchandise IDs, Google might fold them collectively.

Google’s John Mueller talking on a Webmaster hangout.

Incorrect rel=canonical tag.
One other state of affairs that results in the identical outcomes is when somebody has carried out a rel=canonical tag incorrectly. For instance, if a developer by chance provides a canonical tag pointing to a special area on a web page, it likely leads to the show of a special web page in Google Cache view. On this case, you despatched the sign to Google that these two pages are an identical and they need to fold them collectively.

My private nightmare occurred after I was diagnosing the same situation. Apparently, earlier than I began engaged on the web site, some pages had an exterior canonical tag — just for some time, however lengthy sufficient to be found by Google. After that, the canonical disappeared and there was no signal of their presence, however the Cache was nonetheless displaying the web page as soon as cited as canonical.

Fixing this mysterious situation was doable after an Examine URL function was added in GSC (Thanks, Google!). This allowed me to find out that Google picked an exterior URL as a canonical model, and it was the identical URL because the person had declared. That person, a developer for the positioning, was in bother.

Worldwide websites with the identical content material.
The final instance of this situation might seem on worldwide websites that use the identical content material on totally different domains (TLDs). For instance, in case you determine to publish the identical content material on each the German and Austrian variations of your web site, Google might have issues with understanding what the connection between them is. Even hreflang markup might not assist, and Google will mix these URLs collectively.

On this instance, have a look within the search outcomes proven within the animated GIF under. The URL belongs to google.fr, however in case you go to the cache view, you will notice google.ca because the requested URL

5. 404 Error web page in Google Cache however the web site wasn’t switched to the cellular

Motive: the web page is just not cached.

It’s also possible to see the 404 error web page in Google Cache for a web page, even when the positioning hasn’t but been switched to mobile-first indexing. This may occasionally occur as a result of Google doesn’t retailer a cached view for all of the pages they crawl and index. Google has an enormous quantity of assets at its disposal, however they aren’t limitless, so they might forego storing every little thing.

So simply because a web page is listed, that doesn’t imply that the snapshot is taken. However you probably have a snapshot in Google Cache, that undoubtedly signifies that the web page was listed.

6. The cache is empty

Motive: the web site is powered by JavaScript

When you have a JS-based web site and you don’t render the content material in such a method to serve the rendered model to Google (e.g. with prerender or dynamic rendering), you most likely will see an empty cache.

It is because the HTML of a JavaScript utility might comprise just a few traces of code, and the remainder is loaded after JavaScript execution. So if Google Cache shows the uncooked HTML, there may be nothing to be displayed.

However even in case you see an empty cache, that doesn’t imply that the content material is just not listed. The rule relating to the 2 waves of indexing (see under) makes it in order that no matter you wish to load with JS most likely can be listed, but it surely may be deferred.

Within the first wave, Google indexes the web page with out executing JavaScript. Within the second wave, JS is executed so Google might index the content material accurately.

From a technical standpoint,  it’s completely advantageous that the HTML of JS-powered web sites don’t have too many parts to be displayed earlier than executing JavaScript.

Nonetheless, given all the problems with JS indexing, I wouldn’t depend on the rendering of my JavaScript web site by Google, because of the delays in indexing. The indexing of the content material could also be deferred for just a few days and even months!

7. There isn’t a cache in any respect

Motive: noarchive meta tag is in use.

Utilizing a noarchive meta tag prevents Google from creating snapshots that could possibly be displayed in Google Cache. Usually, it’s an intentional step. It’s instructing the instruments or purposes that they shouldn’t retailer the snapshots of the web page.

This may be helpful if the web page presents delicate information that shouldn’t be accessible. In case you determine to make use of a noarchive meta tag, it doesn’t affect the rankings, solely whether or not a snapshot is created and saved.

When it’s price checking Google Cache

Google Cache reveals a lot info. However are they actionable? Not at all times. Sure, I verify Google Cache whereas analyzing web sites, however I’m not targeted on fixing the problems with Google Cache. I deal with any issues I discover there as signs of different points.

Right here is a few info that’s at all times helpful to me:

  • Within the case of JavaScript-powered web sites, after I see that the cache is empty, I do know that this web site doesn’t serve the content material to the major search engines with pre-render or SSR (Server-Aspect Rendering). Likewise, after I see {that a} JS-powered web site has a cache view, I do know that they serve the content material to Google by some means.
  • After I see a special web page than I anticipate, I do know that this web page might have issues with duplicate content material. It’s a helpful trace whereas analyzing the content material high quality.
  • Lastly, whereas checking the cache, you may confirm if Google respects your canonical tags. If sure, that’s nice. If not, it’s time to take a more in-depth have a look at the alerts that you simply despatched to Google referring to indexing.

Maintain a wholesome distance

I don’t wish to discourage you from checking Google Cache whereas auditing web sites. We are able to’t ignore the anomalies noticed there, as a result of we don’t know the mechanisms behind Google Cache. However we must always maintain calm.

Reasonably than panic I might advocate utilizing one in all these instruments that might present extra actionable information:

  • Fetch as Google in Google Search Console: right here you may render the web page in the identical manner Google does. Cellular and Desktop rendering is offered.
  • Cellular- Pleasant Check: in case you don’t have entry to Google Search Console, you may at all times use this instrument.
  • Examine URL in Google Search Console: an excellent instrument that enables for checking particulars on particular URLs — fetching standing, date of crawling, canonicalization. On the whole, it gives details about what Google thinks of a given web page.
  • Crawlers: they’ll assist with assessing the dimensions of duplicate content material or skinny pages — it’s a deeper evaluation primarily based on information

You must understand that Google Cache is a function for customers and its capacity to create and show snapshots has no affect on rating. That mentioned, a discrepancy that you simply see in Google Cache may be a symptom of different points which will affect the rating course of, so it’s price double checking.


Opinions expressed on this article are these of the visitor creator and never essentially Search Engine Land. Employees authors are listed right here.


About The Creator

Maria Cieslak is a Senior Technical search engine optimization Marketing consultant at Elephate, the “Finest Small search engine optimization Company” in Europe. Her each day entails creating and executing search engine optimization methods for giant worldwide constructions and pursuing her curiosity in fashionable web sites constructed with JavaScript frameworks. Maria has been a visitor speaker at search engine optimization conferences in Europe, together with 2018’s SMX London, the place she has spoken on a variety of topics, together with technical search engine optimization and JavaScript. If you’re curious about extra info on this topic, it’s best to take a look at Elephate’s “Final Information to JavaScript search engine optimization“.





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