4.5 sec in total
349 ms
2.3 sec
1.8 sec
Click here to check amazing PDF Merge R content. Otherwise, check out these important facts you probably never knew about pdfmerger.biz
A free and open source software to merge, split, rotate and extract pages from PDF files. For Windows, Linux and Mac
Visit pdfmerger.bizWe analyzed Pdfmerger.biz page load time and found that the first response time was 349 ms and then it took 4.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.
pdfmerger.biz performance score
name
value
score
weighting
Value4.3 s
17/100
10%
Value8.0 s
3/100
25%
Value5.1 s
62/100
10%
Value110 ms
98/100
30%
Value0.397
25/100
15%
Value6.7 s
56/100
10%
349 ms
116 ms
311 ms
154 ms
158 ms
Our browser made a total of 37 requests to load all elements on the main page. We found that 3% of them (1 request) were addressed to the original Pdfmerger.biz, 73% (27 requests) were made to Pdfsam.org and 11% (4 requests) were made to Cdnjs.cloudflare.com. The less responsive or slowest element that took the longest time to load (637 ms) relates to the external source Static.cloudflareinsights.com.
Page size can be reduced by 59.5 kB (7%)
897.2 kB
837.7 kB
In fact, the total size of Pdfmerger.biz main page is 897.2 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 65% of websites need less resources to load. Images take 805.8 kB which makes up the majority of the site volume.
Potential reduce by 55.8 kB
HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. This page needs HTML code to be minified as it can gain 11.4 kB, which is 16% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 55.8 kB or 79% of the original size.
Potential reduce by 3.6 kB
Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. PDF Merge R images are well optimized though.
Potential reduce by 50 B
It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. This website has mostly compressed JavaScripts.
Number of requests can be reduced by 13 (43%)
30
17
The browser has sent 30 CSS, Javascripts, AJAX and image requests in order to completely render the main page of PDF Merge R. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.
pdfmerger.biz
349 ms
www.pdfsam.org
116 ms
pdfsam.org
311 ms
materialize.min.css
154 ms
modernizr-3.11.4.min.js
158 ms
jquery-3.5.1.min.js
178 ms
materialize.min.js
469 ms
loadCSS.min.js
285 ms
plugins.js
296 ms
main.js
428 ms
cookieconsent.min.js
426 ms
js
562 ms
unslider-min.js
296 ms
v652eace1692a40cfa3763df669d7439c1639079717194
637 ms
pdfsam.svg
423 ms
lock.svg
296 ms
open-source.svg
433 ms
ribbon.svg
373 ms
bg.webp
386 ms
Sansation-Regular-webfont.woff
177 ms
normalize.min.css
24 ms
PDFsam_Enhanced_fun.png
102 ms
PDFsam_Basic_fun.png
103 ms
PDFsam_Visual_fun.png
89 ms
basic-laptop.jpg
156 ms
merge-home.png
100 ms
enhanced-edit-home.jpg
148 ms
enhanced-review-home.jpg
182 ms
visual-split-homee.jpg
177 ms
visual-organize-pdf-pages.jpg
182 ms
font-awesome.min.css
98 ms
analytics.js
111 ms
64 ms
collect
19 ms
material-icons.min.css
10 ms
bg.jpg
92 ms
MaterialIcons-Regular.ttf
28 ms
pdfmerger.biz accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
pdfmerger.biz best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
pdfmerger.biz SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Mobile Friendly
Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).
Impact
Issue
Document uses legible font sizes
Tap targets are not sized appropriately
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Pdfmerger.biz can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Pdfmerger.biz main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.
pdfmerger.biz
Open Graph data is detected on the main page of PDF Merge R. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: