6.9 sec in total
282 ms
5.8 sec
848 ms
Visit koeln.de now to see the best up-to-date Koeln content for Germany and also check out these interesting facts you probably never knew about koeln.de
Offizielle Webseite für Köln mit Informationen zu Stadt, Events, Sehenswürdigkeiten und Freizeitmöglichkeiten.
Visit koeln.deWe analyzed Koeln.de page load time and found that the first response time was 282 ms and then it took 6.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.
koeln.de performance score
name
value
score
weighting
Value4.5 s
15/100
10%
Value7.3 s
5/100
25%
Value6.5 s
38/100
10%
Value220 ms
87/100
30%
Value0.192
64/100
15%
Value8.7 s
36/100
10%
282 ms
557 ms
468 ms
20 ms
374 ms
Our browser made a total of 359 requests to load all elements on the main page. We found that 38% of them (137 requests) were addressed to the original Koeln.de, 8% (27 requests) were made to Static.xx.fbcdn.net and 6% (21 requests) were made to S0.2mdn.net. The less responsive or slowest element that took the longest time to load (943 ms) belongs to the original domain Koeln.de.
Page size can be reduced by 1.0 MB (28%)
3.7 MB
2.7 MB
In fact, the total size of Koeln.de main page is 3.7 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. 80% 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 2.4 MB which makes up the majority of the site volume.
Potential reduce by 197.6 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 30.7 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 197.6 kB or 82% of the original size.
Potential reduce by 158.6 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. Koeln images are well optimized though.
Potential reduce by 530.1 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 530.1 kB or 60% of the original size.
Potential reduce by 160.9 kB
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. Koeln.de needs all CSS files to be minified and compressed as it can save up to 160.9 kB or 99% of the original size.
Number of requests can be reduced by 154 (46%)
333
179
The browser has sent 333 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Koeln. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 88 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.
koeln.de
282 ms
www.koeln.de
557 ms
a4772cfa2224eae1413465e7dc7ff644.css
468 ms
jsapi
20 ms
jquery.js
374 ms
drupal.js
191 ms
img_assist.js
193 ms
compat.js
192 ms
panels.js
282 ms
global.js
285 ms
jquery.tabs.js
284 ms
jquery.hint.js
367 ms
jquery.matchHeight-min.js
374 ms
adplayer.min.js
378 ms
superfish.js
379 ms
jquery-easing-1.3.pack.js
461 ms
jquery-easing-compatibility.1.2.pack.js
496 ms
coda-slider.1.1.1.pack.js
495 ms
slider-common-pack.js
495 ms
iam.js
401 ms
dblclk.js
496 ms
miniwetter_koeln_ajax_v2.js
599 ms
adsbygoogle.js
6 ms
show_ads.js
9 ms
anzahl=7
330 ms
cookieconsent.min.js
6 ms
15 ms
webfont.js
21 ms
default+de.css
11 ms
default+de.I.js
17 ms
css
24 ms
lg.php
459 ms
k-facebook.png
96 ms
k-twitter.png
96 ms
k-google.png
99 ms
k-rss.png
96 ms
btn_search_submit.gif
100 ms
clip_koelnde_116x72.png
98 ms
blitzer_imago62400869_ruediger-woelk_565.jpg
283 ms
monatshighlights_1603_565x270.jpg
376 ms
slider-fitness-565.jpg
375 ms
topliste_ungewoehnlich-essen_565.jpg
378 ms
smartybubbles-565.jpg
284 ms
monatshighlights_1603_225.jpg
282 ms
DGT_Flughafen_Andi_Benno_final_scope-0369BRAVO_225.jpg
376 ms
steakhaus_porters160216_hl-20_145.jpg
378 ms
nitro-circus160217_hl-39_145.jpg
379 ms
fc-vfl_dfb-73_imago00607935_frinke_145.jpg
470 ms
deichkind-wunderl-145.jpg
470 ms
aufstand-proben-schauspiel-225.jpg
475 ms
Yannick-Gerhardt_Jonglieren_600.jpg
473 ms
monatshighlights_1603_145.jpg
475 ms
smartybubbles-145.jpg
476 ms
sporthalle-ddp-145.jpg
564 ms
schauspiel-koeln.jpg
564 ms
fc-bsc.jpg
566 ms
lindenberg120330_hl_1627_225.jpg
565 ms
button-tickets-87x24.png
564 ms
10274_0_gaffel_koelsch_Grillhaxe_im_Gaffel_am_Dom_225_0.jpg
567 ms
bap_imago-sven-simon_145.jpg
661 ms
jeck_im_sunnesching-15_145.jpg
658 ms
handball_em_imago22711942_newspix_145.jpg
665 ms
alterbridge121104_hl_4193_145.jpg
660 ms
145x110.jpg
664 ms
movago-145x110_1.jpg
663 ms
mev-kino145.jpg
753 ms
tx.io
190 ms
himmel-un-aed140813_hl_0139_145.jpg
746 ms
PsQWVEFkli2Oh2X5MUgzbg.ttf
7 ms
kleinanzeigen_145.jpg
746 ms
schildergasse_koeln_565.jpg
943 ms
shop_meadel_145.jpg
667 ms
dj_145.jpg
668 ms
verkaufsoffen_koeln_145.jpg
754 ms
affel_koelsch_Grillhaxe_im_Gaffel_am_Dom_565.jpg
847 ms
restaurant2.jpg
754 ms
tx.io
96 ms
koelsch-koebes_dbb_00290_145.jpg
571 ms
italiener_beliebte_145.jpg
572 ms
PC800702-mev-familie.jpg
756 ms
koeln_index;sz=468x60,728x90,728x180;tile=1;dcopt=ist;ord=5046869427897036
234 ms
odysseum-vn.jpg
573 ms
tummeldschungel_145.jpg
574 ms
rjm-presse145.jpg
574 ms
dom-huenseler-225.jpg
757 ms
sehenswert-schloesser-145.jpg
664 ms
sehenswert-altstadt-145-bbk.jpg
665 ms
hoponhopoff_0.jpg
573 ms
fc_fans_imago20829420_eibner_225.jpg
661 ms
trainingsauftakt11_1323_145.jpg
659 ms
bundesliga_spielplan_imago16701591_martin-hoffmann_145.jpg
660 ms
fc-fan_imago16265750_eibner_145.jpg
760 ms
verkehrskarte-145x110.jpg
662 ms
imgad
15 ms
mtrcs_284704.js
186 ms
2_qt.jpg
378 ms
koeln_index;sz=770x250;tile=2;ord=5046869427897036
203 ms
defaultImage.gif
207 ms
parkhaeuser-145.jpg
669 ms
verkehrscam-145.jpg
669 ms
pr145x110.jpg
670 ms
oepnv-kvb-145.jpg
671 ms
radroutenplaner_145.jpg
671 ms
fit-300x150-1.jpg
752 ms
284x95-bodyguard-koeln-de.jpg
661 ms
140-Jahre-Verpoorten-Original-Eierlikoer-Jubilaeum-Retro-Edition-284x95.jpg
660 ms
kleinanzeigen-284x95px.jpg
770 ms
jobs-gr.jpg
659 ms
wohnen-gr.jpg
659 ms
freizeit-gr.jpg
765 ms
mtrcs_284704.js
9 ms
submit
292 ms
getads.js
7 ms
wellness-gr.jpg
677 ms
kinder-gr.jpg
675 ms
vereine-gr.jpg
675 ms
eifel-gr.jpg
674 ms
sauerland-fruehling-75.jpg
765 ms
t.js
112 ms
justizia-imago-75.jpg
675 ms
computer-koeln-75x75.jpg
675 ms
heiraten-koeln-75x75.jpg
674 ms
wohnen_75x75.jpg
674 ms
jobs.jpg
583 ms
wohnen.jpg
663 ms
freizeit.jpg
665 ms
wellness.jpg
663 ms
submit
180 ms
impr
120 ms
kinder.jpg
580 ms
vereine.jpg
578 ms
eifel.jpg
574 ms
sauerland-fruehling-38.jpg
662 ms
justizia-imago-38.jpg
662 ms
adex.js
271 ms
rtb
122 ms
computer-koeln-38x38.jpg
575 ms
heiraten-koeln-38x38.jpg
574 ms
wohnen_38x38.jpg
575 ms
KOE_Marke_Koeln_Kommunikationsmuster_lang_RGB.png
571 ms
rect-firmenvideos.png
667 ms
match
145 ms
sDm_BB_Pos.js
103 ms
mainBackgroundWhite.png
573 ms
k-home.jpg
573 ms
k-mobil.jpg
572 ms
k-map.jpg
580 ms
k-dom.jpg
582 ms
k-login.jpg
666 ms
k-mail.jpg
581 ms
subnavi_arrow.jpg
580 ms
menue-pfeil.gif
579 ms
mtrcs_284704.js
125 ms
loadImages.js
23 ms
t.js
130 ms
t.js
211 ms
ca-pub-0471356541064203.js
114 ms
zrt_lookup.html
118 ms
show_ads_impl.js
74 ms
pfeil-menue-top.jpg
460 ms
ads
941 ms
nuggad
98 ms
anzeige.png
421 ms
osd.js
19 ms
0
93 ms
ads
718 ms
koeln_index;sz=300x250,300x600;tile=4;ord=5046869427897036
268 ms
analytic.js
85 ms
158 ms
1.gif
181 ms
ads
746 ms
113 ms
getuid
28 ms
pixel
27 ms
redirect
164 ms
cm.gif
105 ms
pixel
15 ms
getuid
9 ms
redirect
176 ms
cm.gif
102 ms
2.gif
91 ms
2530
43 ms
push
21 ms
ajs.php
111 ms
2.gif
101 ms
232735f56da71cdf559591d73aa5c9e9_1.html
33 ms
redirect
346 ms
pixel
17 ms
st.v2.js
70 ms
redirect
355 ms
96f712f640b2e74e119854d07199ee71.jpg
287 ms
lg.php
105 ms
ajs.php
198 ms
0d923faf9e2e11f022cabb58c450e7d5.jpg
32 ms
cvo.gif
41 ms
196
99 ms
gr
37 ms
pixel_details.html
11 ms
transpix.gif
575 ms
lg.php
97 ms
ajs.php
99 ms
2.gif
91 ms
b552797ab70f9000dd857e7d61eca974.jpg
204 ms
lg.php
103 ms
ajs.php
107 ms
2.gif
90 ms
adj
86 ms
beacon
63 ms
682
109 ms
html_inpage_rendering_lib_200_117.js
45 ms
surly.js
82 ms
lg.php
107 ms
e5ac97bbeb8e287d1725605bf79d85c9.gif
277 ms
ajs.php
120 ms
ba.html
36 ms
pixel
24 ms
4.gif
51 ms
m_js_controller.js
46 ms
abg.js
65 ms
pixel
40 ms
pixel
60 ms
4311.js
20 ms
lg.php
119 ms
ajs.php
119 ms
favicon
58 ms
googlelogo_color_112x36dp.png
33 ms
nessie_icon_tiamat_white.png
18 ms
s
18 ms
x_button_blue2.png
12 ms
E4WYPs_lNJIuXrWpTsOcc3FIG36RfI0ERc0srw5QW9Y.js
3 ms
koelnerdom.png
97 ms
lg.php
104 ms
domwallfahrt.png
96 ms
koelnarena.png
104 ms
musicaldome.png
102 ms
koelnerzoo.png
102 ms
stadion.png
101 ms
philharmonie.png
188 ms
koelntourismus.png
194 ms
koelnmesse.png
194 ms
flughafen.png
195 ms
hauptbahnhof.png
195 ms
kirchen.png
194 ms
996
103 ms
sdk.js
157 ms
koeln_index_mrect2;sz=300x250;tile=5;ord=5046869427897036;
291 ms
163 ms
xd_arbiter.php
140 ms
xd_arbiter.php
254 ms
sd
74 ms
box_19_top-right.png
23 ms
ci.png
30 ms
lidar.js
16 ms
DCRM_HTML5_In-page_468x60.html
26 ms
2530
16 ms
push
21 ms
arrow_right.gif
106 ms
koeln_index;sz=120x600,160x600,200x450,200x600;tile=6;ord=5046869427897036
173 ms
232735f56da71cdf559591d73aa5c9e9_1.html
17 ms
style.css
16 ms
Enabler_01_91.js
19 ms
edge.6.0.0.min.js
30 ms
getuid
41 ms
cvo.gif
29 ms
DCRM_HTML5_In-page_468x60_edge.js
8 ms
template_468x60.jpg
9 ms
preloader.gif
34 ms
DCRM_HTML5_In-page_468x60_edge.js
4 ms
stylesheet.css
17 ms
logo.png
15 ms
img-1.png
16 ms
img-2.png
15 ms
img-3.png
16 ms
fsme-regular.woff
3 ms
fsme-regular.ttf
5 ms
1305
138 ms
8006108169220473200
20 ms
mtrcs_284704.js
121 ms
ads
747 ms
cc.gif
304 ms
ga.js
95 ms
submit
96 ms
23929287_20150916122432105_bg-468x60.png
29 ms
pixel
29 ms
__utm.gif
22 ms
gum
284 ms
23929287_20150909095640059_logo.png
15 ms
23929287_20150909095609525_img-1.png
16 ms
23929287_20150909095620265_img-2.png
17 ms
23929287_20150909095631617_img-3.png
17 ms
collect
59 ms
page.php
144 ms
q8sTdrz2ueE.css
167 ms
8xV6rPUles1.css
204 ms
JvYiyYZV8Hs.css
243 ms
_rx8naC75Dy.js
347 ms
t-KLv3gqZy0.js
277 ms
O6mvGXq05ee.js
376 ms
wyIfBc7KBcg.js
385 ms
eJ-OD1MiSJg.js
287 ms
wFYNJ9lyaMJ.js
393 ms
Xs81m_2832G.js
399 ms
pixel
15 ms
2126
89 ms
0
94 ms
usersync.aspx
19 ms
0
207 ms
adj
117 ms
beacon
35 ms
12715513_10153279593337611_8168478763848506442_n.jpg
249 ms
10301436_10152099043287611_5469945895052186474_n.jpg
306 ms
wL6VQj7Ab77.png
85 ms
CSXXCvknpgK.png
85 ms
296 ms
252 ms
t-wz8gw1xG1.png
160 ms
1-Desktop_160x600.jpg
46 ms
img;p.a=127481691;a=11147200808928;idfa=;idfa_lat=;aaid=;aaid_lat=;cache=2064647656
180 ms
5273113
148 ms
dvtp_src.js
67 ms
sbhK2lTE.js
19 ms
359 ms
cTrvNaRi.html
18 ms
dvtp_src_internal25.js
17 ms
pixel
77 ms
t2tv7.html
80 ms
visit.js
75 ms
Pix-1x1.gif
47 ms
event.gif
59 ms
avs5634.js
12 ms
R9a_DtVRZgv.js
49 ms
cUDgRFxaoIk.js
50 ms
0JBr1QHp8Gi.js
44 ms
kDOzhTr2W91.js
48 ms
event.jpg
49 ms
css;base64,
4 ms
0pOT4k1QLXd.css
49 ms
MlDjWH8abJB.css
46 ms
K8d0fqdHi2s.css
49 ms
xoyOB9tkUFt.js
51 ms
lRyN50VcaFW.js
52 ms
cookie-consent-logo.png
349 ms
ui
14 ms
12308575_1660533064199229_839333871846383757_n.jpg
73 ms
safe_image.php
181 ms
safe_image.php
249 ms
safe_image.php
290 ms
safe_image.php
293 ms
1377959_589993681063463_471348522_n.jpg
69 ms
1914553_493715810817052_8359179000070357782_n.jpg
108 ms
12472551_10206111139192640_4564720680567095686_n.jpg
118 ms
12311329_909441835839625_2259869714845199113_n.jpg
146 ms
12208609_794821703980913_5406801530835702894_n.jpg
128 ms
11062562_1392247294426116_2145576500212203836_n.jpg
175 ms
7NEHk19WerA.png
59 ms
634XJclZCfi.png
123 ms
0k35u61-Cce.png
46 ms
eZfKDJ6oF3B.png
47 ms
Cg43IrsPc7P.png
50 ms
koeln.de 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
[aria-hidden="true"] elements contain focusable descendents
ARIA IDs are not unique
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
Image elements do not have [alt] attributes
Form elements do not have associated labels
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.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
koeln.de best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
koeln.de 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
Tap targets are not sized appropriately
DE
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Koeln.de can be misinterpreted by Google and other search engines. Our service has detected that German 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 Koeln.de 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.
koeln.de
Open Graph description is not detected on the main page of Koeln. 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: