by
Robert H'obbes' Zakon
Internet Evangelist
The MITRE Corporation
The views expressed in this document are the author's and are not intended to represent in any way The MITRE Corporation or its opinions on this subject matter.
The author wishes to acknowledge the Internet Society for hosting this document, and the many Net folks who have contributed suggestions and helped with the author's genealogy search.
Internet | Networks | WWW | USENET | Security
Internet growth:
Date Hosts | Date Hosts Networks Domains
----- --------- + ----- --------- -------- ---------
1969 4 | 07/89 130,000 650 3,900
04/71 23 | 10/89 159,000 837
06/74 62 | 10/90 313,000 2,063 9,300
03/77 111 | 01/91 376,000 2,338
08/81 213 | 07/91 535,000 3,086 16,000
05/82 235 | 10/91 617,000 3,556 18,000
08/83 562 | 01/92 727,000 4,526
10/84 1,024 | 04/92 890,000 5,291 20,000
10/85 1,961 | 07/92 992,000 6,569 16,300
02/86 2,308 | 10/92 1,136,000 7,505 18,100
11/86 5,089 | 01/93 1,313,000 8,258 21,000
12/87 28,174 | 04/93 1,486,000 9,722 22,000
07/88 33,000 | 07/93 1,776,000 13,767 26,000
10/88 56,000 | 10/93 2,056,000 16,533 28,000
01/89 80,000 | 01/94 2,217,000 20,539 30,000
| 07/94 3,212,000 25,210 46,000
| 10/94 3,864,000 37,022 56,000
| 01/95 4,852,000 39,410 71,000
| 07/95 6,642,000 61,538 120,000
| 01/96 9,472,000 93,671 240,000
| 07/96 12,881,000 134,365 488,000
| 01/97 16,146,000 828,000
| 07/97 19,540,000 1,301,000
| 01/98 29,670,000
Note: A more accurate survey mechanism was developed in 1/98; corrected
numbers are shown in the chart below dating back to 1/95.
For further info, see Sources section below.
Figure: Internet Domains
Figure: Internet Networks
Worldwide Networks Growth: (I)nternet (B)ITNET (U)UCP (F)IDONET (O)SI
____# Countries____ ____# Countries____
Date I B U F O Date I B U F O
----- --- --- --- --- --- ----- --- --- --- --- ---
09/91 31 47 79 49 02/94 62 51 125 88 31
12/91 33 46 78 53 07/94 75 52 129 89 31
02/92 38 46 92 63 11/94 81 51 133 95 --
04/92 40 47 90 66 25 02/95 86 48 141 98 --
08/92 49 46 89 67 26 06/95 96 47 144 99 --
01/93 50 50 101 72 31 06/96 134 -- 146 108 --
04/93 56 51 107 79 31 07/97 171 -- 147 108 --
08/93 59 51 117 84 31
WWW Growth:
Date Sites | Date Sites | Date Sites ----- ---------- + ----- ---------- + ----- ---------- 06/93 130 | 11/96 525,906 | 10/97 1,466,906 12/93 623 | 12/96 603,367 | 11/97 1,553,998 06/94 2,738 | 01/97 646,162 | 12/97 1,681,868 12/94 10,022 | 02/97 739,688 | 01/98 1,834,710 06/95 23,500 | 03/97 883,149 | 02/98 1,920,933 01/96 100,000 | 04/97 1,002,612 | 03/98 2,084,473 06/96 252,000 | 05/97 1,044,163 | 04/98 2,215,195 07/96 299,403 | 06/97 1,117,255 | 08/96 342,081 | 07/97 1,203,096 | 09/96 397,281 | 08/97 1,269,800 | 10/96 462,047 | 09/97 1,364,714 |
USENET Growth:
Date Sites ~MB ~Posts Groups | Date Sites ~MB ~Posts Groups
---- ----- --- ------ ------ + ---- ------- --- ------ ------
1979 3 2 3 | 1987 5,200 2 957 259
1980 15 10 | 1988 7,800 4 1933 381
1981 150 0.05 20 | 1990 33,000 10 4,500 1,300
1982 400 35 | 1991 40,000 25 10,000 1,851
1983 600 120 | 1992 63,000 42 17,556 4,302
1984 900 225 | 1993 110,000 70 32,325 8,279
1985 1,300 1.0 375 | 1994 180,000 157 72,755 10,696
1986 2,200 2.0 946 241 | 1995 330,000 586 131,614
~ approximate: MB - megabytes per day, Posts - articles per day
Security (CERT) Incidents:
1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
+ ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
Incidents | 6 132 252 406 773 1334 2340 2412 2573 2134
Advisories | 1 7 12 23 21 19 15 18 27 28
Vulnerabilities | 171 345 311
Archive-name: Hobbes' Internet Timeline v3.3 Archive-location: http://www.isoc.org/zakon/Internet/History/HIT.html Last-updated: 12 April 1998 Maintainer: Robert H'obbes' Zakon, zakon@info.isoc.org Description: An Internet timeline highlighting some of the key events and technologies which helped shape the Internet as we know it today.