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Frequently Asked Questions
Here are some common questions regarding site speed issues and GTmetrix usage.
General Site Speed FAQ
1. Why should I be concerned with my site's speed?
Your users' feel in terms of navigating your site should be a peachy reason. Users take many options when information technology comes to consuming content on the internet, and a slow performing website volition frustrate your users, sending them elsewhere. A faster and more than responsive website will keep them more than engaged and focused on your content, rather than waiting for scripts and images to load.
Some other reason is SEO. Google already uses page speed in their ranking algorithm, and plan to comprise Page Feel in their ranking algorithm also, through the Web Vitals initiative.
This means that faster loading sites with a proficient user experience may rank higher in search engine results. As developers and marketers wait to optimize their sites, page speed and page experience should exist among the top optimizations to consider.
2. My site loads pretty fast... why should I modify it?
It's all almost efficiency and optimization. Your site may exist loading fast, but information technology could be faster if y'all take some of the best practices into consideration. You might fifty-fifty be able to reduce bandwidth and hosting costs by minimizing your footprint.
Also, your site may be loading fast but a visitor may not perceive that to be the case. You should sympathise how your site loads so that you lot can focus on providing a positive user feel.
3. Now that I have my scores; What practise I practice now?
Start optimizing your site! GTmetrix provides explanations for each inspect and gives you actionable advice. The audits in the report are ordered in terms of which ones have the highest impact on your site. Fixing items at the meridian of the listing tin can accept a bigger impact on your overall score.
Make sure you fully understand the audits before you begin though. While many of them are applicable to your site, some are not. The audits are meant to be generic best practices- you don't absolutely need to ready everything. Start past focusing on the Spider web Vitals.
Feel costless to contact us if y'all have any questions.
4. My server lawmaking is optimized. Is this enough?
It's a start - but the code that really needs to exist optimized is the user facing code. Forepart-stop optimization (of CSS, JavaScript, images, HTML, etc) is what'southward going to make the nigh touch on on your users. Often we only concentrate on server side optimizations, making the lawmaking equally efficient as possible in that location; but nosotros forget that we can become an even bigger increase in operation and improve the page experience if nosotros optimize the forepart-end code too.
v. I have a _______ type of site. Why is information technology request me to do 10?
The audits are not e'er relevant to your site (Eg. You do not need a CDN if you're running a small website or weblog). This is why it's important to truly understand the audits and how they can affect your site. Not everything will apply to your site.
Visit our audits folio to acquire more well-nigh each inspect.
6. I don't have control over X, why is it asking me to fix it?
Nearly sites include code for services like ads, analytics or other widgets. These bits of lawmaking may fetch JavaScript or CSS from other sources. Of grade, since y'all take no control over these resources, there's nothing you can (or need to) do.
7. Do I have to fix everything?
No, not at all! Start with the audits that appear in your Summary Tab. And then motion onto your Construction Tab, where all the audits are ordered by what has the virtually impact on your score.
Realize that 100% is not realistic, and a green score generally ways your site operation is optimized. Retrieve that these tools are meant to be used for a broad variety of site types, and then some audits may non apply to your site.
8. How much of an affect will doing this have on my search engine ranking?
In full general, at that place will be an impact; however, there is no definitive respond on how much. Google had made folio speed a ranking gene for websites in 2010, for mobile sites in 2018, and will mark pages as "Fast folio", potentially ranking them higher in search results.
In full general, Google is gearing toward a more responsive web to make it "more than delightful" for users across all web browsers and surfaces.
Despite this, Google has fabricated it clear that even though site speed and page feel are of import, they will keep to prioritize pages with the best information overall.
Therefore, don't do it for SEO, exercise it for your users!
9. Why did my scores/performance change when I changed screen resolution?
You likely have a responsive website design. When the screen resolution changes to a larger or smaller size, the layout and styling of the page also changes. Depending on your styling, your page could potentially exist delivering larger/smaller images and hiding/revealing assets or resources. All of this impacts the load performance of your folio.
In addition, Every bit of Oct 12, 2017, GTmetrix now defaults to a screen resolution of 1366x768 for tests. Y'all tin read more than about the change here.
GTmetrix FAQ
i. Why won't GTmetrix analyze my URL?
Cheque to run into if your URL is in the proper format (eg. http://www.example.com). Another reason may be that the URL you entered requires y'all to be logged in kickoff, and/or it is being redirected to another URL.
Some URLs might non work for any number of reasons. Here are some errors that might preclude your URL from being analyzed:
- Invalid URL
- Didn't return a 200/300 condition response
- Didn't render an html page
- Internal Server Error
- Unable to get screen capture
- Timed out
- Didn't complete due to pending request (image too big, unresponsive request, etc.)
If your URL won't analyze, read our Full general GTmetrix Errors web log article to acquire more on why this may exist the case.
ii. Why would I want to monitor my URL and how tin I do it?
Monitoring your URL allows yous to keep rail of functioning over time and meet whatsoever changes when they occur. Combined with our monitored alerts, yous can know when your website is performing poorly right away, and have steps to right it.
One time you lot've analyzed a URL, you'll arrive at its report page. Click on "Monitor" on the right manus side to open the menu where there's a dropdown that allows for different monitoring schedules. Choose your desired schedule and salvage your settings.
GTmetrix will now monitor the specified URL.
Read our How to set upwards Monitoring and Alerts blog commodity to learn more than.
3. How many URLs can I monitor?
Bones/Free users can only monitor one URL Daily, Weekly, or Monthly. Upgrading to GTmetrix PRO allows you to monitor more URLs downward to an Hourly frequency.
4. My PageSpeed Insights scores are different from my GTmetrix scores; Why is that?
To respond this question, nosotros need to clarify the background of each tool in general.
PageSpeed Insights and web.dev are Google's own tools that use Lighthouse in their own ways. The key difference is that PageSpeed Insights provides Chrome User Experience (CrUX) data - bodily user data collected from Chrome browsers effectually the world to provide data on real user operation. Web.dev (and GTmetrix) are considered more lab/constructed tests, where analysis is performed in controlled environments and scenarios.
With regards to results, at that place are various reasons why your Functioning Score on either platform differs from GTmetrix. Read more than most this here.
5. How long does GTmetrix keep my reports for?
All report history and data will exist retained for a specified number of months depending on the plan you're on:
- Invitee (non-logged in) users: one week
- Basic: 3 months
- Solo, Starter, Growth: 6 months
- Champion, Team: 12 months
- Enterprise: 24 months
The retention time starts from the report generation date. After the time has elapsed, reports will be purged from our database and are not recoverable.
6. Are in that location any privacy settings?
Yes - If you don't desire anybody to meet a detail report for your URL, click on "Page Settings" on the right manus side. Under the "Privacy" heading you tin can choose whether or not to brand the written report private, or allow anybody to see it.
Keep in heed that though a private report is protected from public view, anybody can create a report for whatsoever URL. If you can load the URL in your browser, you can analyze it in GTmetrix.
vii. My graphs don't seem to be changing. Why?
A good reason could be that there haven't been major changes or optimizations done to that URL. GTmetrix tracks the performance of URLs, but unless any development or improvements have been done, the graphs will continue a directly line.
Monitoring is good for developers who are doing ongoing testing or optimizations for their site and desire to track information technology over time.
eight. What is the GTmetrix Bookmarklet and how do I use information technology?
Test with GTmetrix
The GTmetrix bookmarklet is a snippet of JavaScript tool that allows you to analyze the performance of the current page with a single click.
Read more than on our blog entry.
Note that regardless of the browser yous visit GTmetrix with, GTmetrix e'er runs the tests with the Chrome browser.
9. How do I compare URLs?
After having generated a report for a URL, click "Compare" in the meridian right. A carte du jour will appear where y'all tin enter the URL you wish to compare with the written report. You will and then be taken to the Compare screen with the comparison results.
If you would like to compare more URLs, click the "Add some other URL" button - you lot are able to add upward to 4 different URLs.
Note: The report from which you clicked "Compare" will be the base report. All additional reports will be compared confronting this report.
10. Tin can I compare an existing study with another study?
Yep! See instructions on how to compare GTmetrix Reports hither.
12. I accept a page that requires HTTP Hallmark. Can GTmetrix analyze information technology?
Yes! Log into your GTmetrix account and expand the "Analysis Options" drawer.
Click "Advanced Options" to reveal the HTTP Authentication fields.
Enter in your .htpasswd Username and Countersign and click "Clarify". GTmetrix will pass in the credentials and clarify the page.
You can as well enter the username and countersign using the http://username:password@instance.com/ syntax, just usernames or passwords containing @, :, or / must be URI encoded.
The login details volition not be displayed in the written report (and will also exist stripped from the HAR file), but will be saved for time to come use - you will exist able to re-analyze the page without inbound the login details.
Note: this characteristic only works for HTTP Authenticated webpages (eg, pages protected using an .htpasswd file) - this is dissimilar from a cookie based session (run across the next FAQ item for more details).
xv. How tin can I meet the bear on ads have on my site?
Log into your GTmetrix account and nether the URL field there volition be an "Assay Options" button.
Tick the "Adblock Plus" pick. Your URL will be scanned with the ads blocked. You tin besides enable this option in the "Folio Settings" button on the Report page sidebar.
Blocking ads is helpful if you lot want to run across the impact the ads are having on your folio load times.
Currently, GTmetrix only offers the power to enable and disable the usage of Adblock Plus. The Easylist English filter subscription is used as the default filter set.
For more data on testing with Adblock Plus, read our How to block ads in GTmetrix tests blog article.
16. How can I test a site from a different location?
GTmetrix has numerous test servers located worldwide, which yous are able to use for testing your site'southward performance. You can specify which test server to use by selecting a test server in the "Analysis Options" push, on the dashboard page.
Read our Which location should I exam from? blog commodity to acquire more.
17. How can I test my mobile functioning?
For PRO users, GTmetrix offers folio assay through an actual Android device (Milky way Nexus) and a multitude of simulated devices. On your Dashboard, click "Analysis Options" and select ane of the various mobile devices and tablets in the in the Test Format dropdown. If you lot wish to re-examination from a Report page, click on "Folio Settings" and change your Exam Format settings there. Re-test!
Read our How to test with mobile devices using GTmetrix blog article to learn more.
xviii. What can connection throttling tell me?
Past simulating a particular connection speed, you tin can identify any potential loading issues for your target audiences. For example, if a large per centum of your users are coming through mobile devices, it would be adept to see how your site performs under a 3G/2G connection to ensure a speedy load time for that user base.
xix. How does GTmetrix throttle connections?
GTmetrix utilizes peculiarly customized software to simulate any kind of connection. We exercise this by putting limits on our fibre connection's download speed, upload speed and latency. Nosotros throttle both IPv4 and IPv6 traffic when analyzing your folio to ensure that study information is accurate.
twenty. Why isn't my CDN being recognized?
GTmetrix auto-detects well-known and pop CDNs. Since there are hundreds (if not thousands) of CDN services bachelor, in that location are times when a CDN is non recognized past GTmetrix. In this case, we unremarkably require the CDN provider to reach out to us for a CDN review so that we can add it to our auto-detection.
If GTmetrix isn't detecting your CDN, and then you can add together your own CDN hostnames so that they aren't penalized by the CDN audit. Visit your Account page so under the User Settings, input your CDN hostnames in the "CDN Hostnames" field. GTmetrix should then recognize these domains every bit CDNs in all your future tests.
Notation that if you're using Cloudflare, GTmetrix should automatically detect the CDN usage if it's set up correctly and you lot've given it enough time for the DNS to propagate (typically takes up to two days).
21. How do I utilize the Resources Usage Graph?
The Resource Usage Graph is meant to exist a companion to the Waterfall Chart. When used together, it can provide more insight on breaks in the Waterfall Chart, long download times of elements and other potential bug.
Information technology is not meant to be a stand-alone metric, and there is no "score" related to it; rather it gives a view of what the browser is going through while loading your website.
22. What does the CPU Usage Graph mean?
This graph indicates the level of processing resource needed by the browser to return your folio at any given betoken. Websites with complex layouts, high interactivity, and demanding extensions (e.1000. Flash) are more than demanding on a calculator, resulting in a higher CPU utilization. In improver, inefficiently written scripts (e.m. JavaScript) might cause stalls in folio loads. There might be cases where the CPU utilization is pegged at 100%, meaning the browser is trying its all-time to process a script - and in doing so, blocks other folio elements from being loaded or rendered (look for gaps in the Waterfall Nautical chart).
23. What does the Memory Usage Graph mean?
Similar to the CPU usage graph, the memory usage graph shows the amount of memory required by your browser to render the page. It also can exist used to get a heads upward on inefficient or buggy code (e.grand. memory leaks) and tin can give you a starting signal on where to look if your website is performing slowly.
24. What does the Bandwidth Usage Graph mean?
This graph shows you how much data your site transfers when it is requested. Apply it together with our throttling feature in lodge to improve sympathize how your page loads on slower connection speeds, like 3G connection or DSL connectedness. If your site maxes out bandwidth on desired connections types, you lot may come across long confined in your Waterfall Chart.
25. Why tin can't I meet my Resource Usage Graphs?
There are a number of reasons why the Resource Usage Graph may be unavailable to y'all:
- Information technology is an erstwhile GTmetrix report (generated before the release of Resources Usage Graphs).
- The browser option selected to exam the URL doesn't generate Resource Usage data (e.one thousand. Chrome - Android/mobile).
- The folio loaded likewise quickly for any information to be collected (<100ms).
26. What is the divergence between "duration" and "time"?
A "duration" is a period or how long something took (due east.thousand. X processed for iii seconds).
Durations: Redirect, Connect (including SSL Connection Time), Backend, DOM Content Loaded, Page Loaded
A "fourth dimension" is the bespeak an event occurred in relation to the start of the test (eastward.m. X occurred at two.1 seconds).
Times: Time to first byte (TTFB), Kickoff Paint, DOM Interactive, DOM Content Loaded, Page Loaded, Fully Loaded
Note that Page Loaded and DOM Content Loaded accept both a time and duration. The duration is how long the JavaScript for that event ran for, while the time is when those events fired.
27. What is the departure between Onload Time and Fully Loaded Fourth dimension?
-
Onload Time - is when the processing of the page is consummate and all the resource on the folio (images, CSS, etc.) have finished downloading.
- This used to be the signal where GTmetrix would cease the examination and mark as the Page Load Time in the GTmetrix report.
- Bug with using this result: Some elements of the page load may not make it in before this event fires - like JavaScript based image carousels - causing inconsistent page load times and inaccurate screenshots.
- When should I utilize Onload Time? In full general, there's no real definitive case to prefer Onload Time (which is why we defaulted to Fully Loaded Time), though certain specialized cases might call for it.
-
Fully Loaded Time is the point after all of the following have occurred:
-
First wait for these weather condition to exist met:
- Outset Contentful Paint has fired
- Onload has fired
- Network is idle (5.25s of 2 or fewer in-flight requests after DOM Content Loaded has fired
-
Then look for:
- CPU is idle (v.25s of no long tasks)
- Hard fourth dimension out of 30s after Onload has fired
-
Finally, when the above atmospheric condition are met, nosotros then take the maximum timing of:
- First Pigment
- First Contentful Paint
- Onload Time
- Largest Contentful Paint
- Time to Interactive
- Last asking captured
-
Essentially, GTmetrix is now waiting until your folio stops transferring data before completing a test, resulting in more consistent Folio Load Times.
-
Possible issues with using this outcome:
- This event fires only when a page completely stops loading content, including ads and beneath-the-fold elements.
- Fully Loaded Fourth dimension waits for a page to finish executing JavaScript (measured from First Contentful Paint (FCP) to the last long chore; also known equally Time to Interactive).
Your site might have loaded fast above-the-fold and be usable, however since the assay is now waiting for the entire site to cease loading data, your reported Folio Load Time might be longer.
-
28. How do I change the time to stop exam?
Y'all can change your time to stop exam to Onload Fourth dimension by enabling the "Stop test onload" option in the Analysis Options (log in required) or changing the setting on an existing report in the Page Settings. Yous can besides change your default in User Settings from the Account page.
However, nosotros do recommend sticking with using Fully Loaded Fourth dimension unless you have a specific utilize example for it.
"Stop test onload" option is but available for Firefox and Chrome (Android) tests, which generate Legacy Reports (i.due east., PageSpeed/YSlow).
29. When I compare my Simulate Device page functioning to the actual device, why are they different?
Our Simulate Device feature works by telling our browser to identify itself equally the selected device through the User Amanuensis string. We and so modify the Screen Resolution and gear up the appropriate Device Pixel Ratio for the device to match as well. Nosotros accept combinations of these options for many of the pop devices used today.
Hardware operation is not simulated nevertheless. The functioning differences likely stem from the fact that GTmetrix uses server-class hardware to launch a browser and load pages, which differs significantly from the bodily device'south hardware performance (mobile CPUs, GPUs, retentiveness, etc).
thirty. How accurate is the Simulate Device feature?
Simulate Device can give you a great idea of whether or not your site adheres to mobile recommendations and may help optimization with layouts dependent on User Agent specific styling. Combined with Screen Resolution changes, y'all tin actually become a general sense of your folio display and operation in terms of full folio size.
However, bodily load time is less representative, due to the hardware caveat mentioned to a higher place, which is why you lot should withal test your page on the actual device in lodge to become real world performance benchmarks. In addition, rendering engines on various devices may differ (due east.g. if the user is using Firefox mobile every bit their primary browser), resulting in different real globe functioning.
Our Imitation Device feature gives you a good starting benchmark to gauge your functioning with on these devices, but they should not exist regarded as one:ane comparisons.
31. What happens to my report data after I downgrade?
Here'southward what will happen to monitored pages and their corresponding data:
- If y'all currently have more than monitored pages than alloted for in your new plan, GTmetrix will disable monitoring on a number of them to align with your new Monitored Slot limit.
-
All written report history and data will be retained for a specified number of months depending on the plan you lot downgraded to:
- Basic: 3 months
- Solo, Starter, Growth: half-dozen months
- Champion, Team: 12 months
The retention fourth dimension starts from the report generation date. After the time has elapsed, reports will be purged from our database and are not recoverable.
As a courtesy, we delay the purging of your report data for ii weeks after you've downgraded then you lot can get things sorted.
GTmetrix Assay Errors
ane. Network connectivity errors
There may be a connectivity event between your server and the GTmetrix test server if yous get errors similar "Read timeout", "Write failed", "Broken pipe" or "Connection reset by peer".
Yous can try again afterward, or attempt testing from some other one of our test locations (requires log in). If it fails from multiple locations, it ordinarily means that it's a trouble on your terminate and your users are experiencing similar problems. Contact your hosting provider to get the issue resolved.
two. Server condition errors
GTmetrix simply analyzes pages that return a successful HTTP status code. If y'all go this error, your page has returned an mistake HTTP status lawmaking.
The almost mutual reasons for this include:
- Your spider web application generating the page is incorrectly returning an error HTTP status code, only is returning page content that does not indicate an error.
- Your web application is blocking GTmetrix from accessing the page. With WordPress, information technology could exist due to plugins like Bad Behaviour or Wordfence. With e-commerce software, it'south common that the access is blocked based on the IP.
- You are using a reverse proxy (eg. CloudFlare) and it's blocking GTmetrix from accessing the page.
In all these cases, y'all'll need to fix or configure your web application to return a successful HTTP status code or permit GTmetrix admission to your page. Your web server'southward error log may provide insight into why it'southward returning an fault.
3. SSL certificate errors
GTmetrix only analyzes HTTPS sites that have a valid, trusted SSL certificate (ie. not self-signed, non-expired, matching common name).
A common problem with HTTPS sites is that the intermediate/chain certificates aren't installed correctly. If you don't accept the intermediate certificates installed properly, some users (including GTmetrix) volition get an SSL certificate error while viewing your folio. For instructions on how to properly install your SSL certificate and to test your SSL certificate visit SSLShopper.
4. DNS errors
If GTmetrix has problems resolving your site's domain, then you may accept DNS configuration issues. You can go a study on your DNS configuration at intoDNS - be sure to look into the items that are marked equally red.
Nonetheless, if your site has recently changed name servers or changed its DNS configuration (eg. moved servers), and then the issue might be that your DNS records have been cached. Depending on your configuration, this may accept up to 24 hours (at most 48 hours) to propagate. Attempt re-testing your page at a afterward time.
five. Your page took too long to load
The maximum time GTmetrix will wait for a page to load (time it takes for the window.onload event to fire) is ii minutes.
The nigh common reasons for this error are:
- An extremely slow loading folio or resource or lots of slow loading resources.
- JavaScript that'south preventing the window.onload consequence from firing.
For wearisome loading pages or resources, testing from a closer test location (requires log in) may aid speed things upwards.
6. The URL did not appear to exist an HTML page
GTmetrix only analyzes HTML pages. To ensure that your page is an HTML folio, GTmetrix checks the Content-Type header for text/html.
You also may get this mistake if the Content-Type header is missing or the value is empty. The problem is probable an issue with the web awarding and not the web server.
7. JavaScript redirect or meta refresh
Unfortunately, GTmetrix currently does not handle pages that perform meta refreshes or apply JavaScript to redirect the page. All the same, you can work around this consequence by visiting the page in your own browser to detect the final redirected URL - this is the URL to employ with GTmetrix.
You also may erroneously become this message if your page opens a popup that evades the browser'south popup blocker. Unfortunately, there is currently no fix for this other than to ensure that your page does not open the popup (the Block URL option may also help work around this issue).
GTmetrix Payment & Billing
ane. My credit card keeps getting declined, simply it's worked for other purchases - Why?
In that location are many reasons why a transaction tin be declined (even with a valid credit card). Some common reasons include:
- Your credit card is declining online or international transactions (GTmetrix is located in Canada).
- Your credit card has reached its credit limit.
- The transaction triggered your credit carte's anti-fraud system.
We realize information technology'south a frustrating state of affairs and apologize for any inconvenience. Read on for more details on declined transactions.
2. What can I do if my payment keeps getting declined?
Here are a few things you can do:
- Re-enter your credit card number and security code.
- Contact your credit menu company to add GTmetrix as an approved and legitimate charge.
- Try a unlike credit card.
If your payment even so keeps getting declined, contact the states and we'll work with you towards another solution.
3. I've been successfully subscribed with my carte for a while, only now information technology's getting declined suddenly. Why?
This is difficult to answer as the error code response we get is quite vague. Sometimes credit carte companies accept a alter in security / fraud procedures or algorithms. Other times information technology's our payment gateway deciding to trigger an anti-fraud flag of a sudden.
Information technology's unfortunate in any example, but we're ready and willing to explore solutions with you to get things working again.
4. What payment options does GTmetrix take?
We accept Visa, Mastercard, American Express, Discover, Diners Society and JCB.
We can also accept Purchase Orders (PO), PayPal, Cheques and Bank Transfers, but these methods demand to be processed manually and require a Champion program or college on a yearly term. Contact us to get this fix.
5. I require a PO / manual invoicing for my GTmetrix PRO subscription
We can assistance y'all out! Permit our squad know using our contact form and we tin can set up things up for you. Note that nosotros only provide this service to users on Champion or higher plans on a yearly term.
half-dozen. I'm having problem signing up for a PRO subscription!
Nosotros'll assistance you resolve your issue. Reach out to our team using our contact grade and we'll piece of work towards a solution.
7. How practise I update my Payment Details?
You tin update your billing data by logging into your GTmetrix business relationship and visiting your Account page.
On this folio, you'll encounter a box with the link "Update Billing Info":
Click that and y'all'll be taken to a form to update all of your billing information.
To update Credit Carte details, click on "Update" next to the Credit Carte du jour input fields.
8. How do I view my past invoices?
You tin can find all of your GTmetrix invoices by going to your Business relationship page - then on the right menu block, click on "Past Invoices"
A sidebar will slide out and reveal a dropdown selection of all available invoices:
Just select your desired invoice and click "Download Invoice" to get a PDF version.
9. How do I abolish my PRO subscription?
Sorry to hear yous didn't find GTmetrix PRO a good fit =(
You tin abolish your subscription from the Account folio by clicking on "Cancel Programme"
Follow the instructions and upon counterfoil, you should receive an electronic mail confirming your cancellation.
Source: https://gtmetrix.com/faq.html
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