591:...a system, method and computer program product for providing links to remotely located information in a network of remotely connected computers. A uniform resource locator (URL) is registered with a server. A shorthand link is associated with the registered URL. The associated shorthand link and URL are logged in a registry database. When a request is received for a shorthand link, the registry database is searched for an associated URL. If the shorthand link is found to be associated with a URL, the URL is fetched, otherwise an error message is returned.
1093:
176:
847:, however, has warned its users: "TinyURL may be unsafe. This website has been known to distribute spyware." TinyURL countered this problem by offering an option to view a link's destination before using a shortened URL. This ability is installed on the browser via the TinyURL website and requires the use of cookies. A destination preview may also be obtained by prefixing the word "preview" to the URL of the TinyURL; for example, the destination of
77:
254:
hundreds of characters long and that contain complex character patterns. Such URLs are difficult to memorize, type out or distribute. As a result, long URLs must be copied and pasted for reliability. Thus, short URLs may be more convenient for websites or hard copy publications (e.g. a printed magazine or a book), the latter often requiring that very long strings be broken into multiple lines (as is the case with some
855:. Other URL shortening services provide a similar destination display. Security professionals suggest that users check a short URL's destination before accessing it, following an instance where the shortening service cli.gs was compromised, exposing millions of users to security uncertainties. There are several web applications that can display the destination URL of a shortened URL.
875:
more HTTP/HTTPS request), thereby increasing latency, the time taken to access the page, and also the risk of failure, since the shortening service may become unavailable. Another operational limitation of URL shortening services is that browsers do not resend POST bodies when a redirect is encountered. This can be overcome by making the service a
866:
links for driving directions that reveal personal information like home addresses and sensitive destinations like "clinics for specific diseases (including cancer and mental diseases), addiction treatment centers, abortion providers, correctional and juvenile detention facilities, payday and car-title lenders, gentlemen's clubs, etc."
1423:
313:
Some websites create short links to make sharing links via instant messaging easier, and to make it cheaper to send them via SMS. This can be done online, at the web pages of a URL shortening service; to do it in batch via bulk upload with tools like CSV importer or on demand may require the use of
734:
The last straw came on
September 3, 2010, when the server was disconnected without notice by our hosting provider in response to reports of a number of links to child pornography sites. The disconnection of the server caused us serious problems, and to be honest, the level and nature of the abuse
253:
There are several reasons to use URL shortening. Often regular unshortened links may be aesthetically unpleasing. Many web developers pass descriptive attributes in the URL to represent data hierarchies, command structures, transaction paths or session information. This can result in URLs that are
874:
Short URLs, although making it easier to access what might otherwise be a very long URL or user-space on an ISP server, add an additional layer of complexity to the process of retrieving web pages. Every access requires more requests (at least one more DNS lookup, though it may be cached, and one
865:
Another privacy problem is that many services' shortened URL format is small enough that it is vulnerable to brute-force search. Many people use URL shorteners when they share links to private content, and in fact many web services like Google Maps have offered automatic generation of shortened
297:
can generate URLs that are human-readable, although the resulting strings are longer than those generated by a length-optimized service. Finally, URL shortening sites provide detailed information on the clicks a link receives, which can be simpler than setting up an equally powerful server-side
240:
Other uses of URL shortening are to "beautify" a link, track clicks, or disguise the underlying address. This is because the URL shortener can redirect to just about any web domain, even malicious ones. So, although disguising of the underlying address may be desired for legitimate business or
568:
A permanent URL is not necessarily a good thing. There are security implications, and obsolete short URLs remain in existence and may be circulated long after they cease to point to a relevant or even extant destination. Sometimes a short URL is useful simply to give someone over a telephone
699:
The main advantage of a short link is its brevity. Depending on the transcription used, it might be more easily communicated and entered without error. To some extent it can obscure the destination of the URL; this may be advantageous, disadvantageous, or irrelevant.
691:" (although existing goo.gl links will continue to function). On July 18, 2024, Google announced that existing Google URL shortener URLs will stop working as of August 25, 2025. Google will add an interstitial page to warn users about this starting August 23, 2024.
279:, so there is no need to use a separate URL shortening service just to shorten URLs in a tweet. On other such services, using a URL shortener can allow linking to web pages which would otherwise violate this constraint. Some shortening services, such as
775:, for instance, exercised its control over the .ly domain in October 2010 to shut down vb.ly for violating Libyan pornography laws. Failure to predict such problems with URL shorteners and investment in URL shortening companies may reflect a lack of
822:
URL shortening services for link submissions, because they disguise the origin domain name and whether the link has previously been submitted to Reddit, and there are few or no legitimate reasons to use link shorteners for Reddit link submissions.
754:
if the shortening service stops working; all URLs related to the service will become broken. It is a legitimate concern that many existing URL shortening services may not have a sustainable business model in the long term. In late 2009, the
584:
506:. This results in registration of different URL shorteners with a myriad of different countries, leaving no relation between the country where the domain has been registered and the URL shortener itself or the shortened links.
351:, these keys are case-sensitive most of the time and using the wrong case may lead to a different destination URL. Not all redirection is treated equally; the redirection instruction sent to a browser can contain in its header
862:. Many sites that accept user-submitted content block links, however, to certain domains in order to cut down on spam, and for this reason, known URL redirection services are often themselves added to spam blocklists.
321:
A few well-known websites have set up their own URL shortening services for their own use – for example, Twitter with t.co, Telegram with t.me, Google with g.co, and GoDaddy with x.co.
727:
According to Tonic
Corporation, the registry for .to domains, it is "very serious about keeping domains spam free" and may remove URL shortening services from their registry if the service is abused.
229:
in a message (for example SMS), for reducing the amount of typing required if the reader is copying a URL from a print source, for making it easier for a person to remember, or for the intention of a
1198:
2123:
1544:"New Project in Scramble To Save Vanishing Internet Links – The Internet Archive Is Fighting To Preserve Shortened Web Links Created by Free Online Services That May Be Running Out of Money"
739:
Google's url-shortener discussion group has frequently included messages from frustrated users reporting that specific shortened URLs have been disabled after they were reported as spam.
606:
automatically translated URLs longer than twenty-six characters using TinyURL, although it began using bit.ly instead in 2009 and later developed its own URL shortening service, t.co.
2208:
712:
for indicating the country of origin; domain registration in many countries requires proof of physical presence within that country, although a redirected URL has no such guarantee.
273:
services, there is a limit to the number of characters a message can carry – however, Twitter now shortens links automatically using its own URL shortening service,
750:
The convenience offered by URL shortening also introduces potential problems, which have led to criticism of the use of these services. Short URLs, for example, will be subject to
2297:
1365:
572:
Some providers offer expiration on shortened URLs. This may include URLs that expire after a certain amount of time, on a certain date or after a certain number of usages.
843:; this facilitates redirection of a user to blocked scam pages or pages containing malware or XSS attacks. TinyURL tries to disable spam-related links from redirecting.
245:, because of the use of their redirect services by sites trying to bypass those very same blocklists. Some websites prevent short, redirected URLs from being posted.
305:
are often shortened by a URL shortener in order to reduce the printed area of the code, or allow printing at lower density in order to improve scanning reliability.
2047:
1170:
1799:
879:, or by elaborate schemes involving cookies and buffered POST bodies, but such techniques present security and scaling challenges, and are therefore not used on
1990:
1625:
1917:
1712:
638:
shortener, and questioning whether other shortening services could be profitable from URL shortening in the longer term. It resumed for a time, then closed.
565:
While many providers claim their shortened URLs won't expire for as long as the service is provided, they may decide to discontinue the service at any time.
2174:
2078:
634:
One service, tr.im, stopped generating short URLs in 2009, blaming a lack of revenue-generating mechanisms to cover costs and
Twitter's default use of the
2120:"Shmatikov, Vitaly, "Gone In Six Characters: Short URLs Considered Harmful for Cloud Services." Blog entry dated April 14, 2016; retrieved April 26, 2016"
1651:
602:, was launched in 2002. Its popularity influenced the creation of at least 100 similar websites, although most are simply domain alternatives. Initially,
1484:
1188:
724:
or for illicit internet activities. As a result, many have been removed from online registries or shut down by web hosts or internet service providers.
1681:
2099:
2119:
1594:
1421:, Nimrod Megiddo and Kevin S. McCurley; assigned to IBM corp., "Efficient retrieval of uniform resource locators", issued 2005-10-18
735:
has become quite demoralizing. Given the choice between spending time and money to find a different home, or just giving up, the latter won out.
595:
The patent was filed in
September 2000; while the patent was issued in 2005, US patent applications are made public within 18 months of filing.
759:
started the "301 Works" projects, together with twenty collaborating companies (initially), whose short URLs will be preserved by the project.
2260:
2302:
2200:
366:. Alternatively, if uppercase and lowercase letters are differentiated, then each character can represent a single digit within a number of
1546:
1314:
1081:. Such scripts avoid many issues with shortening services, keep the domain name as part of the shortened link, and can be made private.
663:
announced a service called Google URL Shortener at goo.gl, which originally was only available for use through Google products (such as
575:
A Microsoft
Security Brief recommends the creation of short-lived URLs, but for reasons explicitly of security rather than convenience.
1464:
742:
A study in May 2012 showed that 61% of URL shorteners had shut down (614 of 1002). The most common cause cited was abuse by spammers.
2234:
1396:
2106:
683:
became available via a direct interface. The goo.gl service provides analytics details and a QR code generator. On 30 March 2018
1580:
1734:
1355:
1516:
141:
1332:
113:
1568:
550:) have been used as well as many others. In some cases, the political or cultural aspects of the country in charge of the
2311:
2145:
Georgiev, Martin; Shmatikov, Vitaly (2016). "Gone in Six
Characters: Short URLs Considered Harmful for Cloud Services".
2043:
1882:"Law, Politics and Internet Addresses – Tough.ly/Treated – Shortened Web Links Are Convenient, But They Come at a Price"
1167:
641:
The shortest possible long-term URLs were generated by NanoURL from
December 2009 until about 2011, associated with the
1939:
1228:
1132:
1795:
1621:
771:
domains, and are therefore often under the jurisdiction of a nation other than where the service provider is located.
120:
160:
1913:
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1704:
2341:
1855:
831:
A short URL obscures the target address and can be used to redirect to an unexpected site. Examples of this are "
94:
1965:
127:
2166:
1647:
98:
17:
2070:
1673:
1481:
1329:"#HootSuite Offers Choice of URL Shorteners ~ From Libya to Liechtenstein – HootSuite Social Media Management"
2336:
1439:
1107:
768:
42:
2021:
1821:
1288:
1142:
241:
personal reasons, it is open to abuse. Some URL shortening service providers have found themselves on spam
201:(URL) may be made substantially shorter and still direct to the required page. This is achieved by using a
109:
1598:
617:
URL shortener for use when referring to any WordPress.com blog post. In
November 2009, shortened links on
1764:
2071:"Shortened URL Security - Information Security Office - Computing Services - Carnegie Mellon University"
1418:
569:
conversation for a one-off access or file download, and no longer needed within a couple of minutes.
352:
38:
355:
such as 301 (moved permanently), 302 (found), 307 (temporary redirect) or 308 (permanent redirect).
2256:
1122:
1069:
and commercial scripts are also available for redirecting and shortening links, usually written in
375:
198:
687:
announced that it is "turning down support for goo.gl over the coming weeks and replacing it with
378:
so that key sequence is not predictable. Or users may propose their own custom keys. For example,
180:
87:
839:, or to affiliate websites. The short URL can allow blocked URLs to be accessed, bypassing site
2044:"the JoshMeister on Security: How to Preview Shortened URLs (TinyURL, bit.ly, is.gd, and more)"
1027:
65:
1543:
1461:
1310:
340:
226:
858:
Some URL shortening services filter their links through bad-site screening services such as
389:
Not all URI schemes are capable of being shortened as of 2011, although URI schemes such as
134:
1848:"301Works.org : Free Software : Download & Streaming : Internet Archive"
1258:
859:
680:
598:
Another reference to URL shortening was in 2001. The first notable URL shortening service,
468:
362:, assuming 26 letters and 10 numbers. In this case, each character in the sequence will be
1389:"Protect Your Site With URL Rewriting – A Stateless Approach: Automatically Expiring URLs"
944:
688:
8:
2003:
1388:
1193:
1452:. 10 June 2001; Announcement of URL shortening service available at makeashorterlink.com
2230:
2146:
1500:
1112:
498:
Makers of URL shorteners usually register domain names with less popular or esoteric
472:
270:
1092:
298:
analytics engine, and unlike the latter, does not require any access to the server.
2315:
1513:
756:
709:
642:
507:
499:
358:
There are several techniques to implement URL shortening. Keys can be generated in
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1550:
1520:
1488:
1468:
1443:
1328:
1174:
1098:
1074:
480:
458:
330:
202:
557:
Services may record inbound statistics, which may be viewed publicly by others.
795:
664:
259:
194:
2325:
2287:
2187:
Shortens URLs written to a specified Cloud
Firestore collection (uses Bitly).
1886:
1147:
876:
776:
730:
In addition, "u.nu" made the following announcement upon closing operations:
672:
543:
371:
1220:
554:
may become an issue for users and owners, but this is not usually the case.
2331:
1877:
1137:
1117:
791:
488:
484:
222:
175:
1881:
802:
does not accept links by any URL shortening services in its articles. The
2204:
2201:"Google Buys G.Co To Create An Official URL Shortcut For Google Products"
1986:
1066:
832:
503:
218:
1847:
1825:
1448:
836:
668:
336:
233:. In November 2009, the shortened links of the URL shortening service
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971:
880:
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840:
799:
610:
242:
230:
184:
467:
URLs are not supported for security reasons (to combat attacks like
76:
1127:
1046:
721:
535:
527:
457:
are being addressed by such services as URL shorteners. Typically,
225:
may be desired for messaging technologies that limit the number of
206:
2017:
1436:
1280:
1009:
751:
676:
603:
599:
492:
367:
359:
302:
287:
266:
1041:
Users can generate links to
Wikimedia Foundation projects only.
787:
Some websites prevent short, redirected URLs from being posted.
2306:
1356:"How to spy on campaigns of competitors who use URL shorteners"
929:
911:
803:
684:
660:
619:
502:
in order to achieve a short URL and a catchy name, often using
293:
281:
255:
1760:
1705:"Transitioning Google URL Shortener to Firebase Dynamic Links"
2100:"Updated: Cligs Got Hacked – Restoration from Backup Started"
1931:
1360:
772:
519:
511:
234:
64:
For information about short URLs for pages on Knowledge, see
2102:
1998:
1495:
990:
952:
275:
1648:"goo.gl "URL Shortener – Google Chrome Extension Gallery""
475:). Some URL shortening services support the forwarding of
1785:
http://u.nu/unu-discontinued "u.nu :: discontinued."
1070:
551:
547:
539:
531:
523:
515:
315:
1735:"Google URL Shortener links will no longer be available"
1077:
or a plugin for one of the popular applications such as
1622:"Making URLs Shorter for Google Toolbar and FeedBurner"
335:
In URL shortening, every long URL is associated with a
790:
In April 2009, TinyURL was reported to be blocked in
656:
represents a sequence of random numbers and letters.
1674:"Official YouTube Blog: Make Way for youtu.be Links"
1640:
1088:
380:
https://example.com/product?ref=01652&type=shirt
631:were the most widely used URL-shortening services.
623:were accessed 2.1 billion times. Around that time,
560:
101:. Unsourced material may be challenged and removed.
1189:"Twitter's t.co URL shortener used to spread spam"
2144:
1595:".TO ccTLD Becomes Worlds Shortest URL Shortener"
1347:
869:
301:URLs encoded in two dimensional barcodes such as
2323:
1916:. Committee to Protect Bloggers. 16 April 2009.
1250:
708:Short URLs often circumvent the intended use of
1619:
1386:
2198:
2046:. Security.thejoshmeister.com. 11 April 2009.
1924:
1761:"Tonic Corporation Frequently asked questions"
1471:shortenurl – Supported URL shortening services
1938:. Meta, discussion about Wikimedia projects.
1613:
1168:Goo.gl Challenges Bit.ly as King of the Short
679:URL Shortener, youtu.be. From September 2010
2231:"About Twitter's link service (http://t.co)"
1876:
370:(26 + 26 + 10). In order to form the key, a
1620:Muthusrinivasan, Muthu (14 December 2009).
798:blocks postings that contain TinyURLs, and
675:. On 21 December 2009, Google introduced a
491:. This may sometimes be done using short,
209:that has a long URL. For example, the URL "
23:
308:
24:
2167:"Firebase Extensions | Shorten URLs"
2150:
495:-protected URLs, but this is not common.
161:Learn how and when to remove this message
2296:) is being considered for deletion. See
1538:
1536:
1534:
1532:
1474:
1311:"Spammers Storm URL Shortening Services"
174:
32:This is an accepted version of this page
1353:
826:
782:
767:Shortened internet links typically use
211:https://en.wikipedia.org/URL_shortening
14:
2324:
2263:from the original on 21 September 2021
2177:from the original on 25 September 2020
2068:
1186:
1180:
2312:Comparison of URL Shortening Services
1684:from the original on 25 December 2009
1529:
1368:from the original on 2 September 2012
1317:from the original on 1 November 2019.
814:and in some subreddits, outright bans
1968:from the original on 8 February 2017
1894:from the original on 17 October 2010
1824:. Yi.tl. 23 May 2012. Archived from
1702:
1597:. Domainnamenews.com. Archived from
1592:
1482:"Bit.ly Eclipses TinyURL on Twitter"
1261:from the original on 14 January 2019
762:
221:is shorter than the original one. A
99:adding citations to reliable sources
70:
1920:from the original on 19 April 2009.
1858:from the original on 1 October 2016
1354:Chapman, Stephen (28 August 2012).
985:Now inside the Hootsuite dashboard
886:
364:0, 1, 2, ..., 9, a, b, c, ..., y, z
56:
2126:from the original on 23 April 2016
2050:from the original on 25 March 2014
2024:from the original on 20 April 2013
1942:from the original on 20 March 2017
1654:from the original on 12 April 2011
1231:from the original on 27 April 2022
1177:– New York Times, 14 December 2009
1133:List of Internet top-level domains
720:URL shortening may be utilized by
57:
2353:
2300:to help reach a consensus. ›
2279:
2237:from the original on 2 April 2023
2211:from the original on 21 July 2011
1914:"TinyURL Blocked in Saudi Arabia"
1822:"Ultimate list of URL shorteners"
1767:from the original on 19 July 2013
1715:from the original on 30 June 2018
1399:from the original on 17 July 2013
1335:from the original on 14 June 2013
1201:from the original on 3 April 2015
853:https://preview.tinyurl.com/8kmfp
237:were accessed 2.1 billion times.
2081:from the original on 1 June 2022
1802:from the original on 8 July 2019
1628:from the original on 31 May 2013
1542:Ahmed, Murad (7 December 2009).
1187:Curtis, Sophie (8 August 2014).
1091:
1056:
1037:
1000:
962:
939:
703:
583:An early reference is US Patent
561:Expiry and time-limited services
384:https://tinyurl.com/exampleshirt
75:
2249:
2223:
2199:Alexia Tsotsis (18 July 2011).
2192:
2159:
2138:
2112:
2093:
2062:
2036:
2010:
1980:
1954:
1906:
1870:
1840:
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1779:
1753:
1727:
1696:
1666:
1586:
1574:
1562:
1507:
1455:
1430:
1411:
1291:from the original on 3 May 2022
1060:Announcement of youtu.be Links
483:, to avoid unwanted harvest by
86:needs additional citations for
2303:URL redirection and shortening
1387:Sullivan, Bryan (March 2009).
1380:
1321:
1303:
1273:
1243:
1213:
1161:
870:Additional layer of complexity
806:community strongly discourages
339:, which is the part after its
13:
1:
2285:
2257:"Make Way for youtu.be Links"
2069:University, Carnegie Mellon.
1154:
1108:Country code top-level domain
694:
324:
2007:). Retrieved 1 January 2011.
1991:"Spam Spotted Using TinyURL"
1514:"WP.me – Shorten Your Links"
1504:). Retrieved 1 January 2011.
1480:Wortham, Jenna (7 May 2009)
883:or Internet-scale services.
648:(Tonga) domain, in the form
7:
1624:. Googleblog.blogspot.com.
1559:. Retrieved 1 January 2011.
1395:. Microsoft MSDN Magazine.
1313:. CertMag. 17 August 2009.
1084:
479:URLs, as an alternative to
248:
10:
2358:
745:
578:
353:HTTP response status codes
345:https://tinyurl.com/m3q2xt
328:
63:
1796:"Google Discussiegroepen"
1739:developers.googleblog.com
1462:"URL Shortening Services"
1417:
1143:Service d'adresse mondial
849:https://tinyurl.com/8kmfp
2298:templates for discussion
1549:17 December 2013 at the
1487:23 November 2010 at the
1442:5 September 2009 at the
1123:Generic top-level domain
851:is revealed by entering
715:
199:Uniform Resource Locator
39:latest accepted revision
2342:URL-shortening services
1004:Twitter's link service
376:random number generated
309:Registering a short URL
213:" can be shortened to "
1519:18 August 2009 at the
1467:3 January 2010 at the
1331:. Blog.hootsuite.com.
966:Google's link service
835:", and redirecting to
737:
689:Firebase Dynamic Links
593:
217:". Often the redirect
193:is a technique on the
187:
66:Knowledge:URLShortener
1678:Official YouTube Blog
1437:"Comment thread 8916"
1419:US patent 6957224
1285:shortener.godaddy.com
1225:developer.twitter.com
732:
671:) and extensions for
589:
510:of countries such as
341:top-level domain name
178:
2337:Internet terminology
1173:10 July 2011 at the
1032:Wikimedia Foundation
860:Google Safe Browsing
827:Privacy and security
783:Blocking and banning
681:Google URL Shortener
659:On 14 December 2009
469:cross-site scripting
382:can be shortened to
95:improve this article
2018:"Preview a TinyURL"
2004:The Washington Post
1880:(14 October 2010).
1703:Hermanto, Michael.
1194:The Daily Telegraph
205:which links to the
29:Page version status
1936:meta.wikimedia.org
1501:The New York Times
1113:Domain Name System
1051:YouTube (Alphabet)
609:On 14 August 2009
587:, which describes
374:can be made, or a
188:
35:
2122:. 14 April 2016.
1709:Google Developers
1593:Michlick, Frank.
1581:tr.im Resurrected
1526:. 14 August 2009.
1064:
1063:
763:Transnational law
710:top-level domains
508:Top-level domains
500:Top-level domains
473:session hijacking
271:instant messaging
171:
170:
163:
145:
26:
16:(Redirected from
2349:
2316:SearchEngineLand
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2066:
2060:
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2057:
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2033:
2031:
2029:
2014:
2008:
1989:(13 June 2006).
1984:
1978:
1977:
1975:
1973:
1958:
1952:
1951:
1949:
1947:
1932:"Spam blacklist"
1928:
1922:
1921:
1910:
1904:
1903:
1901:
1899:
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1868:
1867:
1865:
1863:
1844:
1838:
1837:
1835:
1833:
1828:on 18 April 2013
1818:
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1469:Wayback Machine
1460:
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1444:Wayback Machine
1435:
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1393:Security Briefs
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1281:"URL Shortener"
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1175:Wayback Machine
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1099:Internet portal
1097:
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1075:web application
976:Hootsuite Media
889:
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481:address munging
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1995:Security Fixes
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665:Google Toolbar
613:announced the
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191:URL shortening
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47:29 August 2024
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18:URL shorteners
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111:
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106:Find sources:
100:
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84:This article
82:
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59:Web technique
48:
44:
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2267:19 September
2265:. Retrieved
2251:
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2225:
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1987:Krebs, Brian
1982:
1970:. Retrieved
1962:"Rediquette"
1956:
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1896:. Retrieved
1885:
1878:Staff writer
1872:
1860:. Retrieved
1851:
1842:
1830:. Retrieved
1826:the original
1816:
1804:. Retrieved
1790:
1781:
1769:. Retrieved
1763:. Tonic.to.
1755:
1743:. Retrieved
1738:
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1708:
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1677:
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1615:
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1599:the original
1588:
1583:. blog.tr.im
1576:
1569:tr.im R.I.P.
1564:
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1392:
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1372:10 September
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1359:
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1323:
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1263:. Retrieved
1254:
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1233:. Retrieved
1224:
1221:"t.co links"
1215:
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1192:
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1138:Semantic URL
1118:Emoji domain
1065:
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873:
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792:Saudi Arabia
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504:domain hacks
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485:web crawlers
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258:software or
252:
239:
223:friendly URL
190:
189:
172:
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138:
131:
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117:
105:
93:Please help
88:verification
85:
61:
46:
37:This is the
31:
2286:‹ The
2205:Tech Crunch
2181:8 September
2075:www.cmu.edu
1852:archive.org
1688:24 December
1067:Open source
837:shock sites
833:rickrolling
465:javascript:
288:tinyurl.com
219:domain name
197:in which a
2326:Categories
1972:9 February
1946:4 November
1571:blog.tr.im
1449:Metafilter
1155:References
903:Custom URL
841:blocklists
695:Advantages
669:FeedBurner
337:unique key
329:See also:
325:Techniques
243:blocklists
227:characters
121:newspapers
1898:1 January
1862:19 August
1556:The Times
1524:WordPress
1079:WordPress
881:extranets
845:ZoneAlarm
800:Knowledge
643:top-level
611:WordPress
269:and some
231:permalink
185:Meta-Wiki
151:July 2014
2288:template
2261:Archived
2235:Archived
2209:Archived
2175:Archived
2171:Firebase
2130:26 April
2124:Archived
2079:Archived
2054:20 April
2048:Archived
2028:20 April
2022:Archived
1966:Archived
1940:Archived
1918:Archived
1892:Archived
1856:Archived
1832:20 April
1806:20 April
1800:Archived
1771:20 April
1765:Archived
1741:. Google
1713:Archived
1682:Archived
1658:20 April
1652:Archived
1632:20 April
1626:Archived
1605:20 April
1547:Archived
1517:Archived
1485:Archived
1465:Archived
1440:Archived
1403:1 August
1397:Archived
1366:Archived
1339:20 April
1333:Archived
1315:Archived
1289:Archived
1259:Archived
1229:Archived
1205:15 March
1199:Archived
1171:Archived
1128:Link rot
1085:See also
1054:internal
1047:youtu.be
1035:internal
998:internal
960:internal
906:Comment
722:spammers
652:, where
536:Malaysia
528:Mongolia
249:Purposes
207:web page
203:redirect
43:reviewed
2290:below (
2215:18 July
2085:26 July
1745:18 July
1719:1 April
1014:TinyURL
1010:TinyURL
995:Twitter
897:Company
816:
808:
752:linkrot
746:Linkrot
677:YouTube
629:TinyURL
604:Twitter
600:TinyURL
585:6957224
579:History
493:CAPTCHA
368:base 62
360:base 36
303:QR code
267:Twitter
135:scholar
2307:Curlie
2293:Curlie
2107:Cli.gs
1425:
1295:10 May
1265:10 May
1251:"g.co"
1235:10 May
1028:w.wiki
957:Google
934:Google
930:goo.gl
912:bit.ly
804:Reddit
685:Google
661:Google
636:bit.ly
625:bit.ly
620:bit.ly
542:) and
477:mailto
447:gopher
407:mailto
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294:bit.ly
291:, and
282:goo.gl
256:e-mail
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2147:arXiv
1361:ZDNet
1073:as a
972:ow.ly
916:Bitly
773:Libya
769:ccTLD
716:Abuse
615:wp.me
520:Samoa
512:Libya
460:data:
419:rtmpt
395:https
235:Bitly
142:JSTOR
128:books
2269:2021
2243:2021
2217:2011
2183:2020
2132:2016
2103:Blog
2087:2022
2056:2013
2030:2013
1999:blog
1974:2017
1948:2016
1900:2010
1864:2016
1834:2013
1808:2013
1773:2013
1747:2024
1721:2018
1690:2009
1660:2013
1634:2013
1607:2013
1496:blog
1492:Bits
1405:2013
1374:2012
1341:2013
1297:2022
1267:2022
1255:g.co
1237:2022
1207:2015
991:t.co
953:g.co
900:Type
894:Site
667:and
654:xxxx
627:and
489:bots
471:and
463:and
453:and
451:dict
443:ldap
439:news
435:nntp
431:imap
423:ed2k
415:rtmp
403:ftps
391:http
276:t.co
179:The
114:news
2332:URL
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2105:at
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