15.1 sec in total
4.4 sec
8.7 sec
2 sec
Click here to check amazing Numberphile content for South Africa. Otherwise, check out these important facts you probably never knew about numberphile.com
Short videos about numbers, maths and all sorts of other numbery stuff. We'll make you love numbers!
Visit numberphile.comWe analyzed Numberphile.com page load time and found that the first response time was 4.4 sec and then it took 10.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.
numberphile.com performance score
name
value
score
weighting
Value6.7 s
2/100
10%
Value8.1 s
2/100
25%
Value7.2 s
30/100
10%
Value900 ms
32/100
30%
Value0.803
5/100
15%
Value8.4 s
39/100
10%
4358 ms
17 ms
353 ms
350 ms
264 ms
Our browser made a total of 285 requests to load all elements on the main page. We found that 99% of them (283 requests) were addressed to the original Numberphile.com, 1% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (4.4 sec) belongs to the original domain Numberphile.com.
Page size can be reduced by 2.4 MB (42%)
5.6 MB
3.2 MB
In fact, the total size of Numberphile.com main page is 5.6 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 85% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 5.5 MB which makes up the majority of the site volume.
Potential reduce by 62.1 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 62.1 kB or 89% of the original size.
Potential reduce by 2.3 MB
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. Obviously, Numberphile needs image optimization as it can save up to 2.3 MB or 42% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 34 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.
We found no issues to fix!
284
284
The browser has sent 284 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Numberphile. According to our analytics all requests are already optimized.
numberphile.com
4358 ms
ga.js
17 ms
paper.jpg
353 ms
numbertopper.png
350 ms
navbar314.png
264 ms
kakeya_needle.png
272 ms
powers2.png
278 ms
fold_and_cut.png
238 ms
langtons_ant.png
336 ms
24dinosaurs.png
415 ms
pi_mandelbrot.png
447 ms
monad.png
446 ms
coaster.png
421 ms
vectors_freewill.png
499 ms
infintesimal.png
428 ms
196.png
493 ms
prime_knot.png
513 ms
elliptical.png
506 ms
eight_queens.png
606 ms
lane8.png
613 ms
loop_game.png
570 ms
kleinhouse.png
649 ms
doodle.png
661 ms
coolbirthyears.png
596 ms
knot1.png
725 ms
fourthklein.png
685 ms
shannon.png
690 ms
82000.png
695 ms
monkeys_coconuts.png
727 ms
nash_torus.png
739 ms
sport_hyperbolic.png
768 ms
billionaire.png
773 ms
klein.png
779 ms
everythingformula.png
804 ms
cheryl_birthday.png
806 ms
telescope_time.png
818 ms
lucas_carmichael.png
853 ms
__utm.gif
11 ms
relationship.png
700 ms
5axiom.png
700 ms
52PERFECT.png
748 ms
7shuffles.png
671 ms
shuffle_federico.png
665 ms
1_200_images.png
611 ms
bridge_fermat.png
604 ms
58.png
672 ms
root_minus_15.png
628 ms
funny_fractions.png
624 ms
little_prof_unboxing.png
617 ms
17gon.png
600 ms
super_egg.png
644 ms
1_to_million.png
613 ms
coin_catch.png
622 ms
rock_paper_scissors.png
619 ms
rock_paper_lizards.png
607 ms
logtables.png
553 ms
dots_boxes.png
569 ms
perfect_proof.png
584 ms
perfect_mersenn_matt.png
586 ms
dragon_wrong.png
549 ms
trisect.png
549 ms
coin_toss.png
524 ms
breakfast.png
551 ms
infinite_fractions.png
577 ms
imaginary_erdos.png
551 ms
pixar.png
548 ms
leyland.png
556 ms
equilateral.png
527 ms
poster.png
617 ms
mile_of_pi.png
578 ms
mile_of_pi_extra.png
549 ms
three_square.png
549 ms
brady_numbers.png
560 ms
friedman_numbers.png
526 ms
lunes.png
572 ms
stable_marriage.png
502 ms
7happy.png
504 ms
euclid_problem.png
528 ms
monty1.png
524 ms
wobbly_circle.png
523 ms
dice_bucket.png
508 ms
wobbly_table.png
493 ms
boring.png
487 ms
magic_hexagon.png
508 ms
look_and_say.png
510 ms
wilson_primes.png
511 ms
law_small_numbers.png
504 ms
how_big_graham.png
486 ms
lucas_numbers.png
493 ms
oddpolynomials.png
517 ms
cakecut.png
512 ms
what_graham.png
508 ms
golden_proof.png
505 ms
monsterconway.png
481 ms
happy_ending.png
500 ms
monty2.png
513 ms
monster.png
515 ms
fundamental.png
515 ms
fable.png
506 ms
2048.png
477 ms
bamboo_calculator.png
506 ms
knights_tour.png
512 ms
chaos2.png
514 ms
socerball.png
511 ms
fractalcoast.png
471 ms
epic_circles.png
472 ms
dominos.png
510 ms
riemannzeta.png
486 ms
mobiusbridge.png
516 ms
infographic.png
503 ms
NSA.png
473 ms
order_chaos.png
474 ms
dominosextra.png
504 ms
poincare.png
485 ms
pi_prog_rock.png
513 ms
shapes_width.png
510 ms
pi_river.png
472 ms
log_extras.png
472 ms
game_of_life.png
498 ms
life_mars.png
486 ms
sexy_prime.png
512 ms
liar_carmichael.png
512 ms
prime_test.png
477 ms
taxicab_futurama.png
471 ms
torus.png
495 ms
minus7over4.png
491 ms
astounding1.png
508 ms
rubiks_alone.png
513 ms
calculator_watch.png
485 ms
sprouts.png
486 ms
clones1.png
489 ms
connect_4.png
498 ms
pi_visualisation.png
498 ms
pi_fourfingers.png
508 ms
cyclic.png
487 ms
sloane_gap.png
485 ms
politics.png
486 ms
homer_fermat.png
509 ms
fx85gt_unboxing.png
499 ms
unboxing1.png
511 ms
fermat_theorem.png
491 ms
pisano.png
491 ms
phone_dials.png
477 ms
fifthroot.png
517 ms
PNT.png
490 ms
numberline.png
500 ms
illegal.png
497 ms
43_nuggets.png
498 ms
six_sequences.png
479 ms
math_maths.png
517 ms
transcendental.png
485 ms
mills_constant.png
495 ms
ulam.png
501 ms
watch.png
506 ms
primer.png
478 ms
americans_confuse.png
513 ms
pandigital.png
491 ms
41ulam.png
488 ms
prime_gap.png
505 ms
alankey86.png
509 ms
random.png
474 ms
infinity_paradoxes.png
501 ms
cicada17.png
488 ms
numberline2.png
488 ms
grandis.png
499 ms
27color.png
507 ms
zeno.png
473 ms
soccer_game_day.png
495 ms
pi_pies.png
487 ms
brady_live.png
487 ms
brown_numbers.png
505 ms
zero_factorial.png
501 ms
friends_strangers.png
481 ms
infinite_primes.png
485 ms
789.png
480 ms
enigma.png
490 ms
googol_song.png
498 ms
good_will_hunting.png
504 ms
oct31.png
491 ms
fib_tartan.png
482 ms
safe_cracking.png
484 ms
19_20.png
497 ms
1notprime.png
492 ms
real_good_will.png
503 ms
platonic.png
497 ms
enigma_flaw.png
478 ms
tau_vs_pi.png
479 ms
pi32.png
502 ms
squaring_circle.png
487 ms
french.png
503 ms
tau_music.png
503 ms
301views.png
474 ms
anatomy_goal.png
473 ms
is_zero_even.png
499 ms
pi.png
492 ms
dragon_music.png
504 ms
wisdom_eyes.png
512 ms
sports_numbers.png
475 ms
words_brain.png
472 ms
RSA.png
498 ms
card_trick.png
497 ms
benfords.png
508 ms
golden.png
520 ms
borremean.png
481 ms
fave_seven.png
470 ms
yahtzee_vihart.png
497 ms
4937775.png
499 ms
kids_money.png
512 ms
pi39.png
509 ms
grahams.png
493 ms
longest_time.png
474 ms
tau.png
489 ms
largest_prime.png
506 ms
brownscriterion.png
511 ms
fave_numbers.png
500 ms
root2.png
475 ms
yahtzee.png
492 ms
golden_making_of.png
484 ms
james_live.png
682 ms
spaghetti_numbers.png
664 ms
nepal_flag.png
650 ms
42.png
628 ms
divide_by_zero.png
628 ms
googolplex.png
602 ms
27.png
679 ms
advent_calendar.png
659 ms
exist.png
646 ms
197_keith.png
633 ms
usain_bolt.png
626 ms
unix_time.png
608 ms
255_pacman.png
671 ms
twelve.png
649 ms
666.png
640 ms
vampire_numbers.png
637 ms
dragoncurve.png
639 ms
31_mersenne.png
610 ms
8848.png
661 ms
batman.png
642 ms
curta.png
631 ms
infinity.png
640 ms
400.png
639 ms
melancoil.png
610 ms
98grafting.png
654 ms
220_284.png
638 ms
27card_trick.png
630 ms
internet_full.png
646 ms
mole.png
636 ms
1729taxi.png
619 ms
three.png
648 ms
17sudoku.png
634 ms
8128.png
633 ms
29feb.png
654 ms
hexadecimal.png
634 ms
dyscalculia.png
626 ms
billion.png
480 ms
163.png
476 ms
10factorial.png
476 ms
69.png
504 ms
37.png
501 ms
abel_prize.png
509 ms
998001.png
480 ms
32_bucky.png
477 ms
luck_numbers.png
477 ms
3435.png
519 ms
153.png
514 ms
sixty.png
516 ms
5tiles.png
534 ms
137.png
531 ms
15_bumfit.png
531 ms
6174.png
526 ms
kleiber.png
521 ms
sunflowers.png
520 ms
alex_bellos.png
540 ms
chinese_numbers.png
531 ms
16.png
538 ms
synesthesia.png
517 ms
23birthday.png
516 ms
zequals.png
521 ms
14_shakespeare.png
533 ms
ricciflow.png
528 ms
11.png
531 ms
fish_count.png
521 ms
little_professor2.png
521 ms
lottery_balls.png
517 ms
by_brady.png
571 ms
numberphile.com 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.
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
Links do not have a discernible name
numberphile.com 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
Page has valid source maps
numberphile.com SEO score
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
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Numberphile.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 Numberphile.com 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.
numberphile.com
Open Graph description is not detected on the main page of Numberphile. 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: