3.3 sec in total
513 ms
1.8 sec
978 ms
Click here to check amazing PRB M content for United States. Otherwise, check out these important facts you probably never knew about prbm.com
The Philadelphia Rare Books & Manuscripts Co. (PRB&M)
Visit prbm.comWe analyzed Prbm.com page load time and found that the first response time was 513 ms and then it took 2.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.
prbm.com performance score
name
value
score
weighting
Value1.7 s
91/100
10%
Value1.7 s
99/100
25%
Value2.0 s
99/100
10%
Value0 ms
100/100
30%
Value0
100/100
15%
Value1.7 s
100/100
10%
513 ms
128 ms
5 ms
101 ms
146 ms
Our browser made a total of 120 requests to load all elements on the main page. We found that 87% of them (104 requests) were addressed to the original Prbm.com, 2% (2 requests) were made to Wd-edge.sharethis.com and 2% (2 requests) were made to T.sharethis.com. The less responsive or slowest element that took the longest time to load (517 ms) belongs to the original domain Prbm.com.
Page size can be reduced by 220.5 kB (37%)
590.0 kB
369.5 kB
In fact, the total size of Prbm.com main page is 590.0 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. 30% of websites need less resources to load. Images take 326.5 kB which makes up the majority of the site volume.
Potential reduce by 62.9 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 9.6 kB, which is 13% 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 62.9 kB or 83% of the original size.
Potential reduce by 11.2 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. PRB M images are well optimized though.
Potential reduce by 146.1 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 146.1 kB or 78% of the original size.
Potential reduce by 246 B
CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Prbm.com needs all CSS files to be minified and compressed as it can save up to 246 B or 62% of the original size.
Number of requests can be reduced by 55 (48%)
115
60
The browser has sent 115 CSS, Javascripts, AJAX and image requests in order to completely render the main page of PRB M. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.
prbm.com
513 ms
prbm2010.css
128 ms
buttons.js
5 ms
randomimages-shelves1.js
101 ms
randomimages2.js
146 ms
navbar3_r1_c1_f2.gif
93 ms
navbar3_r1_c1.gif
90 ms
navbar3_r2_c1_f2.gif
209 ms
navbar3_r2_c1.gif
209 ms
navbar3_r3_c1_f2.gif
211 ms
navbar3_r3_c1.gif
214 ms
navbar3_r4_c1_f2.gif
211 ms
navbar3_r4_c1.gif
215 ms
navbar3_r5_c1_f2.gif
214 ms
navbar3_r5_c1.gif
216 ms
navbar3_r6_c1_f2.gif
215 ms
navbar3_r6_c1.gif
225 ms
navbar3_r7_c1_f2.gif
224 ms
navbar3_r7_c1.gif
240 ms
navbar3_r8_c1_f2.gif
239 ms
navbar3_r8_c1.gif
261 ms
navbar3_r9_c1_f2.gif
264 ms
navbar3_r9_c1.gif
289 ms
navbar3_r10_c1_f2.gif
290 ms
navbar3_r10_c1.gif
299 ms
navbar3_r11_c1_f2.gif
299 ms
navbar3_r11_c1.gif
329 ms
navbar3_r12_c1_f2.gif
328 ms
navbar3_r12_c1.gif
354 ms
navbar3_r13_c1_f2.gif
356 ms
navbar3_r13_c1.gif
369 ms
navbar3_r14_c1_f2.gif
369 ms
navbar3_r14_c1.gif
406 ms
spacer.gif
415 ms
navbar3_r2_c1.jpg
441 ms
illustratedwebcatalogues1a.gif
441 ms
giftables_off.gif
452 ms
database_searches1a.gif
451 ms
secure-order-button_off.gif
455 ms
fb_logo2a_gray.gif
410 ms
navbar3_r15_c1a.gif
414 ms
trumpetflower2_lavender.gif
410 ms
getAllAppDefault.esi
139 ms
trumpetflower2_red_r.gif
315 ms
trumpetflower2_r.gif
309 ms
header5.gif
382 ms
BlueThrush.jpg
347 ms
blakstar.gif
349 ms
rgldhand.gif
352 ms
LateWinter-Old_small.jpg
498 ms
brwnstar.gif
369 ms
rbrnhand.gif
406 ms
rtelhand.gif
409 ms
rprphand.gif
405 ms
lprphand.gif
440 ms
trumpetflower2_pink_r.gif
417 ms
trumpetflower2.gif
444 ms
groundhog4a.jpg
487 ms
abaalgo2.gif
428 ms
trumpetflower2_blue.gif
430 ms
CelticKnotRoundel.jpg
440 ms
EasterLamb1.jpg
451 ms
rgldhand.gif
455 ms
rdblhand.gif
445 ms
GiftBox3_green.jpg
455 ms
getSegment.php
15 ms
checkOAuth.esi
70 ms
GiftBox2_purple.jpg
435 ms
GiftBox4_blue.jpg
456 ms
t.dhj
15 ms
bluestar.gif
442 ms
trumpetflower2_bluesky_r.gif
448 ms
t.dhj
28 ms
cm
56 ms
x35248
116 ms
tealstar.gif
420 ms
ot_ecclesiastes_35510_cvr1a.jpg
492 ms
s-3271.xgi
26 ms
ot_ecclesiastes_35510_02a.jpg
419 ms
ot_ecclesiastes_35510_10a.jpg
501 ms
trumpetflower2_bluesky.gif
432 ms
hbpix
98 ms
tealstar.gif
428 ms
11 ms
purpstar.gif
435 ms
pixel
23 ms
bookbal2.gif
459 ms
8 ms
xrefid.xgi
5 ms
pixel
18 ms
ldbluhand.gif
461 ms
rdbluhand.gif
452 ms
2981
25 ms
phone50.jpg
455 ms
PenBlueL.jpg
474 ms
bannersource1.gif
441 ms
illustratedwebcatalogues1b.gif
466 ms
rslvhand.gif
455 ms
rslvhand.gif
442 ms
beauregard_897_cvr1a.jpg
458 ms
boileau_674_cvr1a.jpg
439 ms
trumpetflower2_red.gif
437 ms
DAFODILS.JPG
517 ms
MagnifyingGlass.jpg
438 ms
database_searches1b.gif
426 ms
sessaforcat17.gif
427 ms
trumpetflower2_lavender_r.gif
431 ms
goldstar.gif
415 ms
trumpetflower2_blue_r.gif
440 ms
usflagsm.gif
429 ms
shim.gif
428 ms
dkgrstar.gif
439 ms
globespn4sec.gif
501 ms
rBLkhand.gif
436 ms
logo4.jpg
442 ms
sessasml-left.gif
432 ms
sessa04a.jpg
491 ms
planetmemories_940_3a.jpg
451 ms
DKGRSTAR.GIF
88 ms
rblkhand.gif
83 ms
prbm.com accessibility score
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
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
Image elements do not have [alt] attributes
prbm.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
Serves images with low resolution
General
Impact
Issue
Browser errors were logged to the console
Issues were logged in the Issues panel in Chrome Devtools
prbm.com SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Page is blocked from indexing
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
EN
N/A
N/A
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Prbm.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Prbm.com main page’s claimed encoding is . 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.
prbm.com
Open Graph description is not detected on the main page of PRB M. 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: