3 sec in total
490 ms
2.3 sec
243 ms
Click here to check amazing Rvb content for Russia. Otherwise, check out these important facts you probably never knew about rvb.ru
Электронная библиотека для школьников, студентов, преподавателей и исследователей. Публикует произведения русской и зарубежной классики по авторитетным академическим изданиям, а также критические, экс...
Visit rvb.ruWe analyzed Rvb.ru page load time and found that the first response time was 490 ms and then it took 2.5 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.
rvb.ru performance score
name
value
score
weighting
Value2.6 s
64/100
10%
Value2.7 s
85/100
25%
Value9.4 s
12/100
10%
Value6,290 ms
0/100
30%
Value0
100/100
15%
Value25.4 s
0/100
10%
490 ms
259 ms
7 ms
6 ms
41 ms
Our browser made a total of 81 requests to load all elements on the main page. We found that 9% of them (7 requests) were addressed to the original Rvb.ru, 9% (7 requests) were made to Pagead2.googlesyndication.com and 7% (6 requests) were made to Tpc.googlesyndication.com. The less responsive or slowest element that took the longest time to load (490 ms) belongs to the original domain Rvb.ru.
Page size can be reduced by 69.3 kB (32%)
215.5 kB
146.2 kB
In fact, the total size of Rvb.ru main page is 215.5 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. 40% of websites need less resources to load. Javascripts take 131.7 kB which makes up the majority of the site volume.
Potential reduce by 37.0 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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 37.0 kB or 79% of the original size.
Potential reduce by 3.1 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. Rvb images are well optimized though.
Potential reduce by 29.2 kB
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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 29.2 kB or 22% of the original size.
Number of requests can be reduced by 45 (61%)
74
29
The browser has sent 74 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rvb. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 27 to 1 for JavaScripts and as a result speed up the page load time.
rvb.ru
490 ms
rvb_docs.css
259 ms
urchin.js
7 ms
show_ads.js
6 ms
brand
41 ms
adsbygoogle.js
6 ms
brand
37 ms
all.js
278 ms
3_1_FFFFFFFF_FFFDDFFF_0_pageviews
329 ms
cycounter
250 ms
getpr.php
72 ms
rvb_logo.gif
252 ms
philo_logo.gif
309 ms
rinet_host1_88x34.gif
307 ms
sitemap.jpg
307 ms
rvb_logo_small.gif
306 ms
__utm.gif
3 ms
watch.js
1 ms
zrt_lookup.html
72 ms
show_ads_impl.js
74 ms
aci.js
219 ms
cnt.js
269 ms
55711.js
377 ms
google_custom_search_watermark.gif
175 ms
ca-pub-9661833079665370.js
109 ms
context.js
285 ms
ads
203 ms
osd.js
24 ms
ads
195 ms
106 ms
194 ms
220 ms
xd_arbiter.php
235 ms
xd_arbiter.php
445 ms
58375.js
127 ms
context_static_r1082.js
349 ms
102 ms
adj
96 ms
beacon
81 ms
digits
144 ms
cnt
258 ms
278 ms
42 ms
0
217 ms
surly.js
74 ms
index.html
283 ms
verify_selector.js
220 ms
blank.gif
221 ms
ba.html
13 ms
pixel
36 ms
lidar.js
34 ms
sbhK2lTE.js
68 ms
4.gif
37 ms
4311.js
32 ms
cTrvNaRi.html
12 ms
j6SDDiQit5YY48GNgPpnCluJgoNCzbKlh5o6eVjReZI.js
7 ms
counter2
163 ms
f.gif
132 ms
watch.js
8 ms
match
203 ms
verifyr.js
32 ms
beacon.js
60 ms
0
41 ms
bg.png
42 ms
adchoices.en.png
69 ms
FaceBody_300x250_logo.gif
35 ms
FaceBody_300x250_bg.jpg
99 ms
38501
280 ms
sd
28 ms
box_19_top-right.png
13 ms
ci.png
25 ms
hotlog_redirects
132 ms
ads
249 ms
UMm0y_0ETOCsEorLA0gdTw
259 ms
m_js_controller.js
4 ms
abg.js
22 ms
favicon
64 ms
googlelogo_color_112x36dp.png
52 ms
nessie_icon_tiamat_white.png
45 ms
s
33 ms
x_button_blue2.png
19 ms
rvb.ru accessibility score
ARIA
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
[aria-*] attributes do not match their roles
Names and labels
These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
Buttons do not have an accessible name
<frame> or <iframe> elements do not have a title
Image elements do not have [alt] attributes
Links do not have a discernible name
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
rvb.ru best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Requests the geolocation permission on page load
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Missing source maps for large first-party JavaScript
rvb.ru SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
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
RU
RU
WINDOWS-1251
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Rvb.ru can be misinterpreted by Google and other search engines. Our service has detected that Russian is used on the page, and it matches the claimed language. Our system also found out that Rvb.ru main page’s claimed encoding is windows-1251. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.
rvb.ru
Open Graph description is not detected on the main page of Rvb. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: